./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0278abdbbb57b3938e33a237527cf3a8d14feaf8eba047d58da36569d27728f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:52:12,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:52:12,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:52:12,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:52:12,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:52:12,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:52:12,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:52:12,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:52:12,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:52:12,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:52:12,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:52:12,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:52:12,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:52:12,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:52:12,802 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:52:12,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:52:12,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:52:12,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:52:12,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:52:12,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:52:12,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:52:12,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:52:12,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:52:12,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:52:12,807 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:52:12,808 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:52:12,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:52:12,808 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:52:12,808 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:52:12,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:52:12,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:52:12,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:52:12,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:52:12,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:52:12,810 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:52:12,810 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:52:12,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:52:12,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:52:12,811 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:52:12,811 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:52:12,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:52:12,812 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:52:12,812 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0278abdbbb57b3938e33a237527cf3a8d14feaf8eba047d58da36569d27728f [2024-11-18 14:52:13,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:52:13,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:52:13,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:52:13,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:52:13,104 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:52:13,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c [2024-11-18 14:52:14,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:52:14,860 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:52:14,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c [2024-11-18 14:52:14,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae6501cd/ca7ad1ec2fec4563841b654e7f61674d/FLAGcfdc3378a [2024-11-18 14:52:14,899 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae6501cd/ca7ad1ec2fec4563841b654e7f61674d [2024-11-18 14:52:14,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:52:14,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:52:14,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:52:14,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:52:14,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:52:14,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:14" (1/1) ... [2024-11-18 14:52:14,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0301b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:14, skipping insertion in model container [2024-11-18 14:52:14,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:14" (1/1) ... [2024-11-18 14:52:14,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:52:15,185 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c[1765,1778] [2024-11-18 14:52:15,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:52:15,626 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:52:15,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug2.i","-S") [42] [2024-11-18 14:52:15,646 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c[1765,1778] [2024-11-18 14:52:15,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:52:15,889 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:52:15,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15 WrapperNode [2024-11-18 14:52:15,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:52:15,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:52:15,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:52:15,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:52:15,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:15,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,235 INFO L138 Inliner]: procedures = 60, calls = 2794, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 6076 [2024-11-18 14:52:16,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:52:16,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:52:16,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:52:16,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:52:16,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,458 INFO L175 MemorySlicer]: Split 1970 memory accesses to 17 slices as follows [2, 2, 277, 285, 113, 113, 180, 203, 180, 203, 7, 8, 180, 203, 2, 4, 8]. 14 percent of accesses are in the largest equivalence class. The 274 initializations are split as follows [2, 0, 27, 27, 27, 27, 27, 27, 27, 27, 2, 0, 27, 27, 0, 0, 0]. The 283 writes are split as follows [0, 1, 27, 27, 27, 27, 28, 26, 28, 26, 3, 4, 28, 26, 1, 0, 4]. [2024-11-18 14:52:16,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:52:16,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:52:16,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:52:16,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:52:16,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (1/1) ... [2024-11-18 14:52:16,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:52:16,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:52:16,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:52:16,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:52:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:52:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-18 14:52:16,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-18 14:52:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:52:16,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:52:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 14:52:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-18 14:52:16,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-18 14:52:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-18 14:52:16,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-18 14:52:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2024-11-18 14:52:16,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2024-11-18 14:52:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-18 14:52:16,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-18 14:52:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 14:52:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 14:52:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 14:52:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-18 14:52:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-18 14:52:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-18 14:52:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-18 14:52:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-18 14:52:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-18 14:52:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-18 14:52:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-18 14:52:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-18 14:52:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-18 14:52:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-18 14:52:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-18 14:52:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-18 14:52:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-18 14:52:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-18 14:52:16,846 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-18 14:52:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-18 14:52:16,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-18 14:52:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:52:16,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:52:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:52:16,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:52:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 14:52:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-18 14:52:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-18 14:52:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-18 14:52:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-18 14:52:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-18 14:52:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-18 14:52:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 14:52:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:52:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:52:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:52:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-18 14:52:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-18 14:52:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-18 14:52:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-18 14:52:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:52:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:52:17,338 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:52:17,340 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:52:25,326 INFO L? ?]: Removed 380 outVars from TransFormulas that were not future-live. [2024-11-18 14:52:25,326 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:52:25,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:52:25,382 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:52:25,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:25 BoogieIcfgContainer [2024-11-18 14:52:25,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:52:25,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:52:25,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:52:25,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:52:25,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:52:14" (1/3) ... [2024-11-18 14:52:25,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@928bf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:25, skipping insertion in model container [2024-11-18 14:52:25,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:15" (2/3) ... [2024-11-18 14:52:25,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@928bf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:25, skipping insertion in model container [2024-11-18 14:52:25,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:25" (3/3) ... [2024-11-18 14:52:25,396 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M1-1.c [2024-11-18 14:52:25,413 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:52:25,413 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:52:25,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:52:25,590 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;@7bc719ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:52:25,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:52:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 1814 states, 1022 states have (on average 1.2279843444227005) internal successors, (1255), 1151 states have internal predecessors, (1255), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (772), 673 states have call predecessors, (772), 772 states have call successors, (772) [2024-11-18 14:52:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1309 [2024-11-18 14:52:25,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:52:25,708 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:52:25,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:52:25,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:52:25,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1430328340, now seen corresponding path program 1 times [2024-11-18 14:52:25,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:52:25,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447287978] [2024-11-18 14:52:25,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:52:25,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:52:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:52:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-18 14:52:27,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:52:27,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447287978] [2024-11-18 14:52:27,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447287978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:52:27,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534748858] [2024-11-18 14:52:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:52:27,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:52:27,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:52:27,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:52:27,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:52:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:52:29,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 4163 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:52:29,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:52:29,491 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-18 14:52:29,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:52:29,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534748858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:52:29,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:52:29,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 14:52:29,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586786063] [2024-11-18 14:52:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:52:29,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:52:29,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:52:29,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:52:29,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:52:29,549 INFO L87 Difference]: Start difference. First operand has 1814 states, 1022 states have (on average 1.2279843444227005) internal successors, (1255), 1151 states have internal predecessors, (1255), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (772), 673 states have call predecessors, (772), 772 states have call successors, (772) Second operand has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:52:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:52:29,758 INFO L93 Difference]: Finished difference Result 3623 states and 6346 transitions. [2024-11-18 14:52:29,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:52:29,764 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1308 [2024-11-18 14:52:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:52:29,811 INFO L225 Difference]: With dead ends: 3623 [2024-11-18 14:52:29,811 INFO L226 Difference]: Without dead ends: 1809 [2024-11-18 14:52:29,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1309 GetRequests, 1309 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:52:29,838 INFO L432 NwaCegarLoop]: 2796 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:52:29,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2796 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:52:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-11-18 14:52:30,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1809. [2024-11-18 14:52:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1018 states have (on average 1.2259332023575638) internal successors, (1248), 1147 states have internal predecessors, (1248), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (771), 672 states have call predecessors, (771), 771 states have call successors, (771) [2024-11-18 14:52:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2791 transitions. [2024-11-18 14:52:30,280 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2791 transitions. Word has length 1308 [2024-11-18 14:52:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:52:30,283 INFO L471 AbstractCegarLoop]: Abstraction has 1809 states and 2791 transitions. [2024-11-18 14:52:30,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:52:30,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2791 transitions. [2024-11-18 14:52:30,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1309 [2024-11-18 14:52:30,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:52:30,340 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:52:30,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:52:30,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 14:52:30,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:52:30,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:52:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash -104570462, now seen corresponding path program 1 times [2024-11-18 14:52:30,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:52:30,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458779385] [2024-11-18 14:52:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:52:30,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:52:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:52:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2024-11-18 14:52:32,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:52:32,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458779385] [2024-11-18 14:52:32,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458779385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:52:32,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:52:32,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:52:32,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821805810] [2024-11-18 14:52:32,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:52:32,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:52:32,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:52:32,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:52:32,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:52:32,491 INFO L87 Difference]: Start difference. First operand 1809 states and 2791 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:52:32,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:52:32,602 INFO L93 Difference]: Finished difference Result 3143 states and 4894 transitions. [2024-11-18 14:52:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:52:32,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1308 [2024-11-18 14:52:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:52:32,627 INFO L225 Difference]: With dead ends: 3143 [2024-11-18 14:52:32,627 INFO L226 Difference]: Without dead ends: 1809 [2024-11-18 14:52:32,636 INFO L431 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 [2024-11-18 14:52:32,637 INFO L432 NwaCegarLoop]: 2789 mSDtfsCounter, 0 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5568 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:52:32,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5568 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:52:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-11-18 14:52:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1809. [2024-11-18 14:52:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1018 states have (on average 1.224950884086444) internal successors, (1247), 1147 states have internal predecessors, (1247), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (771), 672 states have call predecessors, (771), 771 states have call successors, (771) [2024-11-18 14:52:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2790 transitions. [2024-11-18 14:52:32,955 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2790 transitions. Word has length 1308 [2024-11-18 14:52:32,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:52:32,961 INFO L471 AbstractCegarLoop]: Abstraction has 1809 states and 2790 transitions. [2024-11-18 14:52:32,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:52:32,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2790 transitions. [2024-11-18 14:52:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1317 [2024-11-18 14:52:32,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:52:32,978 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:52:32,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:52:32,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:52:32,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:52:32,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2132002778, now seen corresponding path program 1 times [2024-11-18 14:52:32,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:52:32,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517745726] [2024-11-18 14:52:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:52:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:52:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:52:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:52:37,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:52:37,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517745726] [2024-11-18 14:52:37,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517745726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:52:37,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:52:37,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:52:37,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74056479] [2024-11-18 14:52:37,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:52:37,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:52:37,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:52:37,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:52:37,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:52:37,027 INFO L87 Difference]: Start difference. First operand 1809 states and 2790 transitions. Second operand has 5 states, 4 states have (on average 65.75) internal successors, (263), 5 states have internal predecessors, (263), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-18 14:52:41,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:52:41,329 INFO L93 Difference]: Finished difference Result 3383 states and 5247 transitions. [2024-11-18 14:52:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:52:41,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 65.75) internal successors, (263), 5 states have internal predecessors, (263), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 1316 [2024-11-18 14:52:41,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:52:41,355 INFO L225 Difference]: With dead ends: 3383 [2024-11-18 14:52:41,355 INFO L226 Difference]: Without dead ends: 2049 [2024-11-18 14:52:41,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:52:41,373 INFO L432 NwaCegarLoop]: 3118 mSDtfsCounter, 3871 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3871 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:52:41,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3871 Valid, 4548 Invalid, 2682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [944 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-18 14:52:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2024-11-18 14:52:41,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2049. [2024-11-18 14:52:41,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1196 states have (on average 1.2424749163879598) internal successors, (1486), 1325 states have internal predecessors, (1486), 829 states have call successors, (829), 23 states have call predecessors, (829), 23 states have return successors, (828), 729 states have call predecessors, (828), 828 states have call successors, (828) [2024-11-18 14:52:41,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3143 transitions. [2024-11-18 14:52:41,722 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3143 transitions. Word has length 1316 [2024-11-18 14:52:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:52:41,724 INFO L471 AbstractCegarLoop]: Abstraction has 2049 states and 3143 transitions. [2024-11-18 14:52:41,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 65.75) internal successors, (263), 5 states have internal predecessors, (263), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-18 14:52:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3143 transitions. [2024-11-18 14:52:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1321 [2024-11-18 14:52:41,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:52:41,739 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:52:41,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:52:41,740 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:52:41,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:52:41,741 INFO L85 PathProgramCache]: Analyzing trace with hash 957097111, now seen corresponding path program 1 times [2024-11-18 14:52:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:52:41,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033975809] [2024-11-18 14:52:41,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:52:41,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:52:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:52:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:52:44,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:52:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033975809] [2024-11-18 14:52:44,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033975809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:52:44,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:52:44,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:52:44,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699566910] [2024-11-18 14:52:44,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:52:44,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:52:44,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:52:44,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:52:44,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:52:44,059 INFO L87 Difference]: Start difference. First operand 2049 states and 3143 transitions. Second operand has 5 states, 4 states have (on average 66.25) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-18 14:52:47,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:52:47,424 INFO L93 Difference]: Finished difference Result 3619 states and 5593 transitions. [2024-11-18 14:52:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:52:47,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) Word has length 1320 [2024-11-18 14:52:47,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:52:47,448 INFO L225 Difference]: With dead ends: 3619 [2024-11-18 14:52:47,449 INFO L226 Difference]: Without dead ends: 2045 [2024-11-18 14:52:47,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:52:47,462 INFO L432 NwaCegarLoop]: 3111 mSDtfsCounter, 3860 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3860 SdHoareTripleChecker+Valid, 4539 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:52:47,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3860 Valid, 4539 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-18 14:52:47,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2024-11-18 14:52:47,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2024-11-18 14:52:47,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 1194 states have (on average 1.2412060301507537) internal successors, (1482), 1323 states have internal predecessors, (1482), 827 states have call successors, (827), 23 states have call predecessors, (827), 23 states have return successors, (826), 727 states have call predecessors, (826), 826 states have call successors, (826) [2024-11-18 14:52:47,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 3135 transitions. [2024-11-18 14:52:47,697 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 3135 transitions. Word has length 1320 [2024-11-18 14:52:47,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:52:47,700 INFO L471 AbstractCegarLoop]: Abstraction has 2045 states and 3135 transitions. [2024-11-18 14:52:47,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 5 states have internal predecessors, (265), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-18 14:52:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 3135 transitions. [2024-11-18 14:52:47,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1322 [2024-11-18 14:52:47,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:52:47,722 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:52:47,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:52:47,722 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:52:47,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:52:47,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1827703045, now seen corresponding path program 1 times [2024-11-18 14:52:47,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:52:47,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9243182] [2024-11-18 14:52:47,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:52:47,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:52:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:52:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:52:51,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:52:51,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9243182] [2024-11-18 14:52:51,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9243182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:52:51,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:52:51,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:52:51,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387632265] [2024-11-18 14:52:51,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:52:51,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:52:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:52:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:52:51,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:52:51,804 INFO L87 Difference]: Start difference. First operand 2045 states and 3135 transitions. Second operand has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 5 states have internal predecessors, (266), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-18 14:52:54,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:52:54,669 INFO L93 Difference]: Finished difference Result 3525 states and 5437 transitions. [2024-11-18 14:52:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:52:54,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 5 states have internal predecessors, (266), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 1321 [2024-11-18 14:52:54,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:52:54,703 INFO L225 Difference]: With dead ends: 3525 [2024-11-18 14:52:54,704 INFO L226 Difference]: Without dead ends: 3506 [2024-11-18 14:52:54,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:52:54,709 INFO L432 NwaCegarLoop]: 2778 mSDtfsCounter, 3115 mSDsluCounter, 7147 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 9925 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:52:54,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3210 Valid, 9925 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 14:52:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2024-11-18 14:52:55,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 3481. [2024-11-18 14:52:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 2056 states have (on average 1.264591439688716) internal successors, (2600), 2307 states have internal predecessors, (2600), 1381 states have call successors, (1381), 42 states have call predecessors, (1381), 43 states have return successors, (1403), 1185 states have call predecessors, (1403), 1380 states have call successors, (1403) [2024-11-18 14:52:55,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 5384 transitions. [2024-11-18 14:52:55,204 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 5384 transitions. Word has length 1321 [2024-11-18 14:52:55,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:52:55,207 INFO L471 AbstractCegarLoop]: Abstraction has 3481 states and 5384 transitions. [2024-11-18 14:52:55,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 5 states have internal predecessors, (266), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-18 14:52:55,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 5384 transitions. [2024-11-18 14:52:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1380 [2024-11-18 14:52:55,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:52:55,228 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:52:55,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:52:55,229 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:52:55,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:52:55,229 INFO L85 PathProgramCache]: Analyzing trace with hash -340787467, now seen corresponding path program 1 times [2024-11-18 14:52:55,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:52:55,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982448815] [2024-11-18 14:52:55,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:52:55,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:52:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:52:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2024-11-18 14:52:57,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:52:57,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982448815] [2024-11-18 14:52:57,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982448815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:52:57,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:52:57,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:52:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046961377] [2024-11-18 14:52:57,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:52:57,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:52:57,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:52:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:52:57,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:52:57,825 INFO L87 Difference]: Start difference. First operand 3481 states and 5384 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:53:00,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:00,042 INFO L93 Difference]: Finished difference Result 7689 states and 11984 transitions. [2024-11-18 14:53:00,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:53:00,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1379 [2024-11-18 14:53:00,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:00,089 INFO L225 Difference]: With dead ends: 7689 [2024-11-18 14:53:00,090 INFO L226 Difference]: Without dead ends: 4683 [2024-11-18 14:53:00,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:53:00,105 INFO L432 NwaCegarLoop]: 3226 mSDtfsCounter, 2955 mSDsluCounter, 4880 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 8106 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1132 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:00,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 8106 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1132 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 14:53:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4683 states. [2024-11-18 14:53:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4683 to 4679. [2024-11-18 14:53:00,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4679 states, 2788 states have (on average 1.2808464849354375) internal successors, (3571), 3143 states have internal predecessors, (3571), 1829 states have call successors, (1829), 54 states have call predecessors, (1829), 61 states have return successors, (1861), 1537 states have call predecessors, (1861), 1828 states have call successors, (1861) [2024-11-18 14:53:00,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4679 states to 4679 states and 7261 transitions. [2024-11-18 14:53:00,753 INFO L78 Accepts]: Start accepts. Automaton has 4679 states and 7261 transitions. Word has length 1379 [2024-11-18 14:53:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:00,755 INFO L471 AbstractCegarLoop]: Abstraction has 4679 states and 7261 transitions. [2024-11-18 14:53:00,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:53:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4679 states and 7261 transitions. [2024-11-18 14:53:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1384 [2024-11-18 14:53:00,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:00,777 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:00,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:53:00,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:00,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:00,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1589883287, now seen corresponding path program 1 times [2024-11-18 14:53:00,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:00,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799309909] [2024-11-18 14:53:00,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:00,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2024-11-18 14:53:02,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:02,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799309909] [2024-11-18 14:53:02,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799309909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:02,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:02,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:53:02,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750424440] [2024-11-18 14:53:02,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:02,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:53:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:02,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:53:02,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:53:02,812 INFO L87 Difference]: Start difference. First operand 4679 states and 7261 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:53:03,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:03,233 INFO L93 Difference]: Finished difference Result 9462 states and 14760 transitions. [2024-11-18 14:53:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:53:03,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1383 [2024-11-18 14:53:03,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:03,287 INFO L225 Difference]: With dead ends: 9462 [2024-11-18 14:53:03,287 INFO L226 Difference]: Without dead ends: 5258 [2024-11-18 14:53:03,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:53:03,316 INFO L432 NwaCegarLoop]: 3041 mSDtfsCounter, 2034 mSDsluCounter, 5358 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 8399 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:03,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 8399 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5258 states. [2024-11-18 14:53:04,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5258 to 5257. [2024-11-18 14:53:04,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 3143 states have (on average 1.2850779510022272) internal successors, (4039), 3548 states have internal predecessors, (4039), 2044 states have call successors, (2044), 60 states have call predecessors, (2044), 69 states have return successors, (2080), 1704 states have call predecessors, (2080), 2043 states have call successors, (2080) [2024-11-18 14:53:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8163 transitions. [2024-11-18 14:53:04,237 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8163 transitions. Word has length 1383 [2024-11-18 14:53:04,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:04,240 INFO L471 AbstractCegarLoop]: Abstraction has 5257 states and 8163 transitions. [2024-11-18 14:53:04,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:53:04,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8163 transitions. [2024-11-18 14:53:04,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2024-11-18 14:53:04,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:04,261 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:04,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:53:04,261 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:04,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:04,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1993608784, now seen corresponding path program 1 times [2024-11-18 14:53:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:04,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205160863] [2024-11-18 14:53:04,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:04,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2024-11-18 14:53:06,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:06,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205160863] [2024-11-18 14:53:06,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205160863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:06,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:06,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:53:06,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940008225] [2024-11-18 14:53:06,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:06,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:53:06,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:06,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:53:06,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:53:06,031 INFO L87 Difference]: Start difference. First operand 5257 states and 8163 transitions. Second operand has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:53:08,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:08,565 INFO L93 Difference]: Finished difference Result 10914 states and 17006 transitions. [2024-11-18 14:53:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:53:08,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1384 [2024-11-18 14:53:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:08,619 INFO L225 Difference]: With dead ends: 10914 [2024-11-18 14:53:08,620 INFO L226 Difference]: Without dead ends: 6132 [2024-11-18 14:53:08,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:53:08,644 INFO L432 NwaCegarLoop]: 2801 mSDtfsCounter, 3933 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3933 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1586 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:08,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3933 Valid, 6275 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1586 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-18 14:53:08,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2024-11-18 14:53:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 6129. [2024-11-18 14:53:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 3708 states have (on average 1.2926105717367853) internal successors, (4793), 4167 states have internal predecessors, (4793), 2335 states have call successors, (2335), 72 states have call predecessors, (2335), 85 states have return successors, (2377), 1947 states have call predecessors, (2377), 2334 states have call successors, (2377) [2024-11-18 14:53:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9505 transitions. [2024-11-18 14:53:09,628 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 9505 transitions. Word has length 1384 [2024-11-18 14:53:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:09,630 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 9505 transitions. [2024-11-18 14:53:09,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:53:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 9505 transitions. [2024-11-18 14:53:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2024-11-18 14:53:09,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:09,651 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:09,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:53:09,651 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:09,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash -42358255, now seen corresponding path program 1 times [2024-11-18 14:53:09,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323056070] [2024-11-18 14:53:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:09,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 87792 trivial. 0 not checked. [2024-11-18 14:53:11,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:11,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323056070] [2024-11-18 14:53:11,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323056070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:53:11,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513690802] [2024-11-18 14:53:11,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:11,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:53:11,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:53:11,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:53:11,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:53:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:12,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 4509 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 14:53:12,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:53:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 1668 proven. 0 refuted. 0 times theorem prover too weak. 86128 trivial. 0 not checked. [2024-11-18 14:53:12,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:53:12,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513690802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:12,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:53:12,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-18 14:53:12,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330031366] [2024-11-18 14:53:12,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:12,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:53:12,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:53:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:53:12,982 INFO L87 Difference]: Start difference. First operand 6129 states and 9505 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:53:15,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:15,975 INFO L93 Difference]: Finished difference Result 11787 states and 18351 transitions. [2024-11-18 14:53:15,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:53:15,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1384 [2024-11-18 14:53:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:16,027 INFO L225 Difference]: With dead ends: 11787 [2024-11-18 14:53:16,027 INFO L226 Difference]: Without dead ends: 6133 [2024-11-18 14:53:16,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1390 GetRequests, 1383 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:53:16,052 INFO L432 NwaCegarLoop]: 3363 mSDtfsCounter, 1996 mSDsluCounter, 4817 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 8180 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:16,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 8180 Invalid, 2341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 14:53:16,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2024-11-18 14:53:17,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 6129. [2024-11-18 14:53:17,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 3708 states have (on average 1.2920711974110033) internal successors, (4791), 4167 states have internal predecessors, (4791), 2335 states have call successors, (2335), 72 states have call predecessors, (2335), 85 states have return successors, (2377), 1947 states have call predecessors, (2377), 2334 states have call successors, (2377) [2024-11-18 14:53:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 9503 transitions. [2024-11-18 14:53:17,102 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 9503 transitions. Word has length 1384 [2024-11-18 14:53:17,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:17,104 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 9503 transitions. [2024-11-18 14:53:17,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:53:17,104 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 9503 transitions. [2024-11-18 14:53:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1393 [2024-11-18 14:53:17,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:17,126 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:17,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:53:17,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-18 14:53:17,328 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:17,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:17,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2032418001, now seen corresponding path program 1 times [2024-11-18 14:53:17,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:17,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786078129] [2024-11-18 14:53:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:17,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat