./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB --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 23a748a14ab5667159adb09776d3545981eaa20034460211a51a13329e4251e4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:52:38,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:52:38,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:52:38,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:52:38,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:52:38,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:52:38,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:52:38,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:52:38,859 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:52:38,859 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:52:38,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:52:38,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:52:38,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:52:38,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:52:38,861 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:52:38,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:52:38,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:52:38,862 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:52:38,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:52:38,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:52:38,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:52:38,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:52:38,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:52:38,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:52:38,863 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:52:38,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:52:38,864 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:52:38,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:52:38,864 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:52:38,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:52:38,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:52:38,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:52:38,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:38,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:52:38,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:52:38,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:52:38,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:52:38,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:38,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:52:38,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:52:38,866 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:52:38,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:52:38,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:52:38,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:52:38,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:52:38,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:52:38,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:52:38,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:52:38,867 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 23a748a14ab5667159adb09776d3545981eaa20034460211a51a13329e4251e4 [2024-11-28 04:52:39,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:52:39,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:52:39,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:52:39,194 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:52:39,194 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:52:39,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c [2024-11-28 04:52:42,238 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/data/0bf2d2e90/5147ee661d854ca0b1dca528cd425e41/FLAG1021f37d8 [2024-11-28 04:52:43,330 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:52:43,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c [2024-11-28 04:52:43,388 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/data/0bf2d2e90/5147ee661d854ca0b1dca528cd425e41/FLAG1021f37d8 [2024-11-28 04:52:43,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/data/0bf2d2e90/5147ee661d854ca0b1dca528cd425e41 [2024-11-28 04:52:43,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:52:43,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:52:43,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:52:43,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:52:43,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:52:43,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:52:43" (1/1) ... [2024-11-28 04:52:43,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729a532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:43, skipping insertion in model container [2024-11-28 04:52:43,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:52:43" (1/1) ... [2024-11-28 04:52:44,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:52:46,435 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c[382357,382370] [2024-11-28 04:52:46,492 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c[383339,383352] [2024-11-28 04:52:46,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:52:46,768 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:52:48,051 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c[382357,382370] [2024-11-28 04:52:48,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/sv-benchmarks/c/combinations/Problem05_label46+token_ring.07.cil-1.c[383339,383352] [2024-11-28 04:52:48,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:52:48,191 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:52:48,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48 WrapperNode [2024-11-28 04:52:48,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:52:48,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:52:48,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:52:48,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:52:48,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:48,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,022 INFO L138 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12922 [2024-11-28 04:52:49,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:52:49,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:52:49,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:52:49,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:52:49,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,290 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]. [2024-11-28 04:52:49,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,551 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:52:49,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:52:49,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:52:49,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:52:49,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (1/1) ... [2024-11-28 04:52:49,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:52:49,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:52:49,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:52:49,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e1d3767-6b66-47d5-a916-54bf28497d2c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:52:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:52:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 04:52:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 04:52:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 04:52:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 04:52:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 04:52:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 04:52:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 04:52:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 04:52:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 04:52:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 04:52:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 04:52:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 04:52:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:52:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:52:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:52:50,137 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:52:50,140 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:53:03,429 INFO L? ?]: Removed 1725 outVars from TransFormulas that were not future-live. [2024-11-28 04:53:03,430 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:53:03,490 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:53:03,490 INFO L312 CfgBuilder]: Removed 22 assume(true) statements. [2024-11-28 04:53:03,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:03 BoogieIcfgContainer [2024-11-28 04:53:03,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:53:03,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:53:03,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:53:03,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:53:03,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:52:43" (1/3) ... [2024-11-28 04:53:03,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211b758b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:03, skipping insertion in model container [2024-11-28 04:53:03,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:52:48" (2/3) ... [2024-11-28 04:53:03,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211b758b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:03, skipping insertion in model container [2024-11-28 04:53:03,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:03" (3/3) ... [2024-11-28 04:53:03,501 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.07.cil-1.c [2024-11-28 04:53:03,517 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:53:03,520 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label46+token_ring.07.cil-1.c that has 7 procedures, 2438 locations, 1 initial locations, 11 loop locations, and 2 error locations. [2024-11-28 04:53:03,660 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:53:03,676 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;@407406c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:53:03,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 04:53:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 2438 states, 2409 states have (on average 1.8497301784973017) internal successors, (4456), 2411 states have internal predecessors, (4456), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:53:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:03,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:03,715 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:03,716 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:03,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:03,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1475632833, now seen corresponding path program 1 times [2024-11-28 04:53:03,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:03,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934228465] [2024-11-28 04:53:03,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:03,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:04,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:04,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934228465] [2024-11-28 04:53:04,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934228465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:04,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:04,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:04,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782093173] [2024-11-28 04:53:04,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:04,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:04,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:04,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:04,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:04,220 INFO L87 Difference]: Start difference. First operand has 2438 states, 2409 states have (on average 1.8497301784973017) internal successors, (4456), 2411 states have internal predecessors, (4456), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:04,475 INFO L93 Difference]: Finished difference Result 4864 states and 8973 transitions. [2024-11-28 04:53:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:04,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:04,516 INFO L225 Difference]: With dead ends: 4864 [2024-11-28 04:53:04,516 INFO L226 Difference]: Without dead ends: 2371 [2024-11-28 04:53:04,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:04,530 INFO L435 NwaCegarLoop]: 4413 mSDtfsCounter, 380 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 8435 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:04,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 8435 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:53:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2024-11-28 04:53:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2371. [2024-11-28 04:53:04,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2342 states have (on average 1.8373185311699403) internal successors, (4303), 2344 states have internal predecessors, (4303), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:53:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 4345 transitions. [2024-11-28 04:53:04,702 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 4345 transitions. Word has length 121 [2024-11-28 04:53:04,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:04,704 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 4345 transitions. [2024-11-28 04:53:04,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 4345 transitions. [2024-11-28 04:53:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:04,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:04,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:04,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:53:04,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:04,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:04,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2098914435, now seen corresponding path program 1 times [2024-11-28 04:53:04,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:04,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393193818] [2024-11-28 04:53:04,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:04,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:05,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:05,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:05,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393193818] [2024-11-28 04:53:05,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393193818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:05,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:05,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:05,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50697179] [2024-11-28 04:53:05,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:05,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:05,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:05,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:05,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:05,058 INFO L87 Difference]: Start difference. First operand 2371 states and 4345 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:05,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:05,773 INFO L93 Difference]: Finished difference Result 2869 states and 5129 transitions. [2024-11-28 04:53:05,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:05,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:05,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:05,786 INFO L225 Difference]: With dead ends: 2869 [2024-11-28 04:53:05,787 INFO L226 Difference]: Without dead ends: 2634 [2024-11-28 04:53:05,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:05,790 INFO L435 NwaCegarLoop]: 4257 mSDtfsCounter, 4681 mSDsluCounter, 8668 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 12925 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:05,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 12925 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:53:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2024-11-28 04:53:05,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2615. [2024-11-28 04:53:05,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2563 states have (on average 1.815060476004682) internal successors, (4652), 2566 states have internal predecessors, (4652), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2024-11-28 04:53:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 4727 transitions. [2024-11-28 04:53:05,882 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 4727 transitions. Word has length 121 [2024-11-28 04:53:05,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:05,884 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 4727 transitions. [2024-11-28 04:53:05,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:05,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 4727 transitions. [2024-11-28 04:53:05,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:05,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:05,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:05,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:53:05,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:05,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:05,888 INFO L85 PathProgramCache]: Analyzing trace with hash -6866169, now seen corresponding path program 1 times [2024-11-28 04:53:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:05,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944611544] [2024-11-28 04:53:05,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:06,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:06,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944611544] [2024-11-28 04:53:06,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944611544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:06,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:06,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:06,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944882989] [2024-11-28 04:53:06,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:06,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:06,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:06,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:06,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:06,292 INFO L87 Difference]: Start difference. First operand 2615 states and 4727 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:07,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:07,208 INFO L93 Difference]: Finished difference Result 3404 states and 5978 transitions. [2024-11-28 04:53:07,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:07,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:07,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:07,224 INFO L225 Difference]: With dead ends: 3404 [2024-11-28 04:53:07,224 INFO L226 Difference]: Without dead ends: 2925 [2024-11-28 04:53:07,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:07,229 INFO L435 NwaCegarLoop]: 4457 mSDtfsCounter, 4681 mSDsluCounter, 13380 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 17837 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:07,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 17837 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:53:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2024-11-28 04:53:07,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2842. [2024-11-28 04:53:07,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2767 states have (on average 1.795084929526563) internal successors, (4967), 2771 states have internal predecessors, (4967), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (57), 54 states have call predecessors, (57), 53 states have call successors, (57) [2024-11-28 04:53:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 5077 transitions. [2024-11-28 04:53:07,336 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 5077 transitions. Word has length 121 [2024-11-28 04:53:07,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:07,337 INFO L471 AbstractCegarLoop]: Abstraction has 2842 states and 5077 transitions. [2024-11-28 04:53:07,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:07,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 5077 transitions. [2024-11-28 04:53:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:07,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:07,341 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:07,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:53:07,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:07,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:07,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1873574843, now seen corresponding path program 1 times [2024-11-28 04:53:07,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:07,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798810635] [2024-11-28 04:53:07,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:07,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:07,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:07,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798810635] [2024-11-28 04:53:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798810635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:07,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:07,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:07,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44095305] [2024-11-28 04:53:07,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:07,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:07,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:07,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:07,633 INFO L87 Difference]: Start difference. First operand 2842 states and 5077 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:08,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:08,551 INFO L93 Difference]: Finished difference Result 4125 states and 7107 transitions. [2024-11-28 04:53:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:08,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:08,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:08,568 INFO L225 Difference]: With dead ends: 4125 [2024-11-28 04:53:08,568 INFO L226 Difference]: Without dead ends: 3419 [2024-11-28 04:53:08,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:08,572 INFO L435 NwaCegarLoop]: 4453 mSDtfsCounter, 4676 mSDsluCounter, 13368 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4691 SdHoareTripleChecker+Valid, 17821 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:08,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4691 Valid, 17821 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:53:08,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2024-11-28 04:53:08,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3325. [2024-11-28 04:53:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3202 states have (on average 1.7638975640224859) internal successors, (5648), 3210 states have internal predecessors, (5648), 85 states have call successors, (85), 30 states have call predecessors, (85), 36 states have return successors, (101), 88 states have call predecessors, (101), 85 states have call successors, (101) [2024-11-28 04:53:08,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 5834 transitions. [2024-11-28 04:53:08,706 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 5834 transitions. Word has length 121 [2024-11-28 04:53:08,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:08,706 INFO L471 AbstractCegarLoop]: Abstraction has 3325 states and 5834 transitions. [2024-11-28 04:53:08,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 5834 transitions. [2024-11-28 04:53:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:08,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:08,709 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:08,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:53:08,709 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:08,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:08,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1114250055, now seen corresponding path program 1 times [2024-11-28 04:53:08,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:08,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845616418] [2024-11-28 04:53:08,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:08,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:08,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:08,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845616418] [2024-11-28 04:53:08,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845616418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:08,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:08,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:08,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585869624] [2024-11-28 04:53:08,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:08,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:08,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:08,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:08,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:08,939 INFO L87 Difference]: Start difference. First operand 3325 states and 5834 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:09,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:09,810 INFO L93 Difference]: Finished difference Result 5678 states and 9590 transitions. [2024-11-28 04:53:09,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:09,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:09,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:09,832 INFO L225 Difference]: With dead ends: 5678 [2024-11-28 04:53:09,832 INFO L226 Difference]: Without dead ends: 4489 [2024-11-28 04:53:09,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:09,838 INFO L435 NwaCegarLoop]: 4450 mSDtfsCounter, 4671 mSDsluCounter, 13359 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4686 SdHoareTripleChecker+Valid, 17809 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:09,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4686 Valid, 17809 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:53:09,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2024-11-28 04:53:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 4372. [2024-11-28 04:53:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 4147 states have (on average 1.7246202073788282) internal successors, (7152), 4169 states have internal predecessors, (7152), 149 states have call successors, (149), 54 states have call predecessors, (149), 74 states have return successors, (213), 156 states have call predecessors, (213), 149 states have call successors, (213) [2024-11-28 04:53:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 7514 transitions. [2024-11-28 04:53:10,040 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 7514 transitions. Word has length 121 [2024-11-28 04:53:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:10,040 INFO L471 AbstractCegarLoop]: Abstraction has 4372 states and 7514 transitions. [2024-11-28 04:53:10,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 7514 transitions. [2024-11-28 04:53:10,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:10,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:10,048 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:10,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:53:10,048 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:10,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:10,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1283220475, now seen corresponding path program 1 times [2024-11-28 04:53:10,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:10,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670365854] [2024-11-28 04:53:10,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:10,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:10,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670365854] [2024-11-28 04:53:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670365854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:10,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:10,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:10,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35549041] [2024-11-28 04:53:10,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:10,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:10,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:10,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:10,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:10,238 INFO L87 Difference]: Start difference. First operand 4372 states and 7514 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:11,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:11,196 INFO L93 Difference]: Finished difference Result 9089 states and 15208 transitions. [2024-11-28 04:53:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:11,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:11,231 INFO L225 Difference]: With dead ends: 9089 [2024-11-28 04:53:11,232 INFO L226 Difference]: Without dead ends: 6853 [2024-11-28 04:53:11,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:11,241 INFO L435 NwaCegarLoop]: 4447 mSDtfsCounter, 4666 mSDsluCounter, 13350 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 17797 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:11,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 17797 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:53:11,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2024-11-28 04:53:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 6691. [2024-11-28 04:53:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 6244 states have (on average 1.6899423446508648) internal successors, (10552), 6312 states have internal predecessors, (10552), 277 states have call successors, (277), 102 states have call predecessors, (277), 168 states have return successors, (533), 292 states have call predecessors, (533), 277 states have call successors, (533) [2024-11-28 04:53:11,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 11362 transitions. [2024-11-28 04:53:11,580 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 11362 transitions. Word has length 121 [2024-11-28 04:53:11,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:11,581 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 11362 transitions. [2024-11-28 04:53:11,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 11362 transitions. [2024-11-28 04:53:11,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:11,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:11,586 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:11,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:53:11,587 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:11,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:11,588 INFO L85 PathProgramCache]: Analyzing trace with hash -252179577, now seen corresponding path program 1 times [2024-11-28 04:53:11,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:11,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197034638] [2024-11-28 04:53:11,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:11,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:11,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:11,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197034638] [2024-11-28 04:53:11,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197034638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:11,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:11,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26412362] [2024-11-28 04:53:11,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:11,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:11,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:11,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:11,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:11,859 INFO L87 Difference]: Start difference. First operand 6691 states and 11362 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:12,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:12,981 INFO L93 Difference]: Finished difference Result 16752 states and 28378 transitions. [2024-11-28 04:53:12,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:12,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:12,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:13,050 INFO L225 Difference]: With dead ends: 16752 [2024-11-28 04:53:13,050 INFO L226 Difference]: Without dead ends: 12197 [2024-11-28 04:53:13,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:13,070 INFO L435 NwaCegarLoop]: 4444 mSDtfsCounter, 4661 mSDsluCounter, 13341 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 17785 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:13,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4676 Valid, 17785 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:53:13,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12197 states. [2024-11-28 04:53:13,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12197 to 11950. [2024-11-28 04:53:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11005 states have (on average 1.674148114493412) internal successors, (18424), 11219 states have internal predecessors, (18424), 533 states have call successors, (533), 198 states have call predecessors, (533), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-11-28 04:53:13,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 20514 transitions. [2024-11-28 04:53:13,710 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 20514 transitions. Word has length 121 [2024-11-28 04:53:13,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:13,711 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 20514 transitions. [2024-11-28 04:53:13,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 20514 transitions. [2024-11-28 04:53:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:13,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:13,723 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:13,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:53:13,723 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:13,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2136384453, now seen corresponding path program 1 times [2024-11-28 04:53:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:13,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292904683] [2024-11-28 04:53:13,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:13,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:13,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292904683] [2024-11-28 04:53:13,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292904683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:13,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:13,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:13,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057744922] [2024-11-28 04:53:13,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:13,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:13,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:13,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:13,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:13,878 INFO L87 Difference]: Start difference. First operand 11950 states and 20514 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:14,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:14,816 INFO L93 Difference]: Finished difference Result 24214 states and 42303 transitions. [2024-11-28 04:53:14,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:14,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:14,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:14,888 INFO L225 Difference]: With dead ends: 24214 [2024-11-28 04:53:14,889 INFO L226 Difference]: Without dead ends: 14400 [2024-11-28 04:53:14,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:14,927 INFO L435 NwaCegarLoop]: 4234 mSDtfsCounter, 4467 mSDsluCounter, 8363 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4482 SdHoareTripleChecker+Valid, 12597 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:14,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4482 Valid, 12597 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:53:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14400 states. [2024-11-28 04:53:15,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14400 to 11950. [2024-11-28 04:53:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11005 states have (on average 1.6711494775102227) internal successors, (18391), 11219 states have internal predecessors, (18391), 533 states have call successors, (533), 198 states have call predecessors, (533), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2024-11-28 04:53:15,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 20481 transitions. [2024-11-28 04:53:15,636 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 20481 transitions. Word has length 121 [2024-11-28 04:53:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:15,637 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 20481 transitions. [2024-11-28 04:53:15,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:15,638 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 20481 transitions. [2024-11-28 04:53:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:15,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:15,646 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:15,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:53:15,647 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:15,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:15,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1079653251, now seen corresponding path program 1 times [2024-11-28 04:53:15,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:15,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61416998] [2024-11-28 04:53:15,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:15,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:15,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:15,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61416998] [2024-11-28 04:53:15,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61416998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:15,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:15,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:15,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631271589] [2024-11-28 04:53:15,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:15,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:15,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:15,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:15,835 INFO L87 Difference]: Start difference. First operand 11950 states and 20481 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:17,771 INFO L93 Difference]: Finished difference Result 35559 states and 61998 transitions. [2024-11-28 04:53:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:17,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:17,895 INFO L225 Difference]: With dead ends: 35559 [2024-11-28 04:53:17,895 INFO L226 Difference]: Without dead ends: 25745 [2024-11-28 04:53:17,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:17,932 INFO L435 NwaCegarLoop]: 4430 mSDtfsCounter, 4869 mSDsluCounter, 13297 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 17727 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:17,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 17727 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:53:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25745 states. [2024-11-28 04:53:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25745 to 23587. [2024-11-28 04:53:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23587 states, 21516 states have (on average 1.6716397099832683) internal successors, (35967), 22184 states have internal predecessors, (35967), 1013 states have call successors, (1013), 390 states have call predecessors, (1013), 1056 states have return successors, (5109), 1076 states have call predecessors, (5109), 1013 states have call successors, (5109) [2024-11-28 04:53:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23587 states to 23587 states and 42089 transitions. [2024-11-28 04:53:19,328 INFO L78 Accepts]: Start accepts. Automaton has 23587 states and 42089 transitions. Word has length 121 [2024-11-28 04:53:19,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:19,329 INFO L471 AbstractCegarLoop]: Abstraction has 23587 states and 42089 transitions. [2024-11-28 04:53:19,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 23587 states and 42089 transitions. [2024-11-28 04:53:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:19,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:19,341 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:19,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:53:19,342 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:19,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:19,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1863928827, now seen corresponding path program 1 times [2024-11-28 04:53:19,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:19,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805237627] [2024-11-28 04:53:19,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:19,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:19,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:19,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805237627] [2024-11-28 04:53:19,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805237627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:19,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:19,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:19,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664826112] [2024-11-28 04:53:19,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:19,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:19,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:19,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:19,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:19,531 INFO L87 Difference]: Start difference. First operand 23587 states and 42089 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:22,140 INFO L93 Difference]: Finished difference Result 75552 states and 141096 transitions. [2024-11-28 04:53:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:22,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:22,470 INFO L225 Difference]: With dead ends: 75552 [2024-11-28 04:53:22,470 INFO L226 Difference]: Without dead ends: 54101 [2024-11-28 04:53:22,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:22,550 INFO L435 NwaCegarLoop]: 4426 mSDtfsCounter, 4702 mSDsluCounter, 13285 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4716 SdHoareTripleChecker+Valid, 17711 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:22,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4716 Valid, 17711 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:53:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54101 states. [2024-11-28 04:53:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54101 to 50154. [2024-11-28 04:53:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50154 states, 45377 states have (on average 1.6838266081935782) internal successors, (76407), 47439 states have internal predecessors, (76407), 1941 states have call successors, (1941), 774 states have call predecessors, (1941), 2834 states have return successors, (18325), 2068 states have call predecessors, (18325), 1941 states have call successors, (18325) [2024-11-28 04:53:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50154 states to 50154 states and 96673 transitions. [2024-11-28 04:53:26,473 INFO L78 Accepts]: Start accepts. Automaton has 50154 states and 96673 transitions. Word has length 121 [2024-11-28 04:53:26,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:26,473 INFO L471 AbstractCegarLoop]: Abstraction has 50154 states and 96673 transitions. [2024-11-28 04:53:26,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:26,474 INFO L276 IsEmpty]: Start isEmpty. Operand 50154 states and 96673 transitions. [2024-11-28 04:53:26,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:26,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:26,494 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:26,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:53:26,494 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:26,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:26,495 INFO L85 PathProgramCache]: Analyzing trace with hash 812063555, now seen corresponding path program 1 times [2024-11-28 04:53:26,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:26,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438142447] [2024-11-28 04:53:26,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:26,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:26,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:26,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438142447] [2024-11-28 04:53:26,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438142447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:26,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:26,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:26,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879396373] [2024-11-28 04:53:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:26,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:26,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:26,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:26,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:26,651 INFO L87 Difference]: Start difference. First operand 50154 states and 96673 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:32,024 INFO L93 Difference]: Finished difference Result 167287 states and 347998 transitions. [2024-11-28 04:53:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:53:32,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2024-11-28 04:53:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:32,766 INFO L225 Difference]: With dead ends: 167287 [2024-11-28 04:53:32,767 INFO L226 Difference]: Without dead ends: 119269 [2024-11-28 04:53:33,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:53:33,249 INFO L435 NwaCegarLoop]: 4424 mSDtfsCounter, 4799 mSDsluCounter, 13279 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4822 SdHoareTripleChecker+Valid, 17703 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:33,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4822 Valid, 17703 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:53:33,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119269 states. [2024-11-28 04:53:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119269 to 112829. [2024-11-28 04:53:39,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112829 states, 101246 states have (on average 1.7000474092803666) internal successors, (172123), 107554 states have internal predecessors, (172123), 3733 states have call successors, (3733), 1542 states have call predecessors, (3733), 7848 states have return successors, (69269), 3988 states have call predecessors, (69269), 3733 states have call successors, (69269) [2024-11-28 04:53:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112829 states to 112829 states and 245125 transitions. [2024-11-28 04:53:40,674 INFO L78 Accepts]: Start accepts. Automaton has 112829 states and 245125 transitions. Word has length 121 [2024-11-28 04:53:40,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:40,674 INFO L471 AbstractCegarLoop]: Abstraction has 112829 states and 245125 transitions. [2024-11-28 04:53:40,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:53:40,674 INFO L276 IsEmpty]: Start isEmpty. Operand 112829 states and 245125 transitions. [2024-11-28 04:53:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:53:40,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:40,729 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:40,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:53:40,729 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:40,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash -71445435, now seen corresponding path program 1 times [2024-11-28 04:53:40,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:40,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221068893] [2024-11-28 04:53:40,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:40,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:40,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:40,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:40,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221068893] [2024-11-28 04:53:40,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221068893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:40,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:40,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:40,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979653223] [2024-11-28 04:53:40,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:40,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:40,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:40,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:40,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:40,889 INFO L87 Difference]: Start difference. First operand 112829 states and 245125 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)