./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.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 351e3bc8fe69313dfbfbeaf7f37de5791a1bf381bb5ef0945347e83cb39fb485 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:36:21,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:36:21,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:36:21,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:36:21,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:36:21,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:36:21,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:36:21,524 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:36:21,525 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:36:21,525 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:36:21,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:36:21,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:36:21,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:36:21,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:36:21,530 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:36:21,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:36:21,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:36:21,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:36:21,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:36:21,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:36:21,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:36:21,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:36:21,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:36:21,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:36:21,544 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:36:21,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:36:21,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:36:21,545 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:36:21,545 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:36:21,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:36:21,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:36:21,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:36:21,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:36:21,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:36:21,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:36:21,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:36:21,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:36:21,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:36:21,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:36:21,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:36:21,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:36:21,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:36:21,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 351e3bc8fe69313dfbfbeaf7f37de5791a1bf381bb5ef0945347e83cb39fb485 [2024-11-16 08:36:21,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:36:21,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:36:21,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:36:21,837 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:36:21,838 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:36:21,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-16 08:36:23,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:36:23,477 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:36:23,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-16 08:36:23,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78a2ba9e/8dd4bf66762046ae82cc0d689be9bf85/FLAGfb94d08a8 [2024-11-16 08:36:23,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78a2ba9e/8dd4bf66762046ae82cc0d689be9bf85 [2024-11-16 08:36:23,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:36:23,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:36:23,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:36:23,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:36:23,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:36:23,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:36:23" (1/1) ... [2024-11-16 08:36:23,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602ba9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:23, skipping insertion in model container [2024-11-16 08:36:23,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:36:23" (1/1) ... [2024-11-16 08:36:23,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:36:24,145 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-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[11101,11114] [2024-11-16 08:36:24,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:36:24,248 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:36:24,311 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-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[11101,11114] [2024-11-16 08:36:24,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:36:24,373 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:36:24,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24 WrapperNode [2024-11-16 08:36:24,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:36:24,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:36:24,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:36:24,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:36:24,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,443 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1197 [2024-11-16 08:36:24,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:36:24,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:36:24,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:36:24,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:36:24,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,491 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:36:24,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,515 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:36:24,546 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:36:24,546 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:36:24,546 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:36:24,547 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (1/1) ... [2024-11-16 08:36:24,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:36:24,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:36:24,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:36:24,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:36:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:36:24,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:36:24,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:36:24,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:36:24,793 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:36:24,795 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:36:25,838 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1324: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-16 08:36:25,839 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1754: havoc main_~node3____CPAchecker_TMP_0~2#1; [2024-11-16 08:36:25,839 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L665: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:25,839 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L302: havoc main_~node5__m5~0#1; [2024-11-16 08:36:25,839 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1954: havoc main_~node1____CPAchecker_TMP_1~2#1; [2024-11-16 08:36:25,840 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L865: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:25,840 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1296: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:36:25,840 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L505: havoc main_~node2__m2~2#1; [2024-11-16 08:36:25,840 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1496: havoc main_~node1____CPAchecker_TMP_1~1#1; [2024-11-16 08:36:25,840 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1926: havoc main_~node1____CPAchecker_TMP_0~2#1; [2024-11-16 08:36:25,840 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L837: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:25,840 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc main_~node4____CPAchecker_TMP_1~2#1; [2024-11-16 08:36:25,841 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L375: havoc main_~node2__m2~1#1; [2024-11-16 08:36:25,841 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L541: havoc main_~node4__m4~2#1; [2024-11-16 08:36:25,841 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1037: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:25,841 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L609: havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-16 08:36:25,842 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1468: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:36:25,842 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L411: havoc main_~node4__m4~1#1; [2024-11-16 08:36:25,842 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1238: havoc main_~node4____CPAchecker_TMP_1~1#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1668: havoc main_~node4____CPAchecker_TMP_0~2#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L248: havoc main_~node2__m2~0#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1009: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1868: havoc main_~node2____CPAchecker_TMP_1~2#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L779: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L284: havoc main_~node4__m4~0#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1210: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1410: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-16 08:36:25,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1840: havoc main_~node2____CPAchecker_TMP_0~2#1; [2024-11-16 08:36:25,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L486: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-16 08:36:25,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L751: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:25,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1610: havoc main_~node5____CPAchecker_TMP_1~2#1; [2024-11-16 08:36:25,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L356: havoc main_~node1__m1~1#1;havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-16 08:36:25,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L951: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:25,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L523: havoc main_~node3__m3~2#1; [2024-11-16 08:36:25,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1382: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:36:25,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1152: havoc main_~node5____CPAchecker_TMP_1~1#1; [2024-11-16 08:36:25,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1582: havoc main_~node5____CPAchecker_TMP_0~2#1; [2024-11-16 08:36:25,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L393: havoc main_~node3__m3~1#1; [2024-11-16 08:36:25,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L559: havoc main_~node5__m5~2#1; [2024-11-16 08:36:25,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:36:25,845 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L923: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:25,846 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1782: havoc main_~node3____CPAchecker_TMP_1~2#1; [2024-11-16 08:36:25,846 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L693: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:25,846 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L429: havoc main_~node5__m5~1#1; [2024-11-16 08:36:25,846 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1124: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-16 08:36:25,846 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc main_~node3__m3~0#1; [2024-11-16 08:36:25,909 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-16 08:36:25,910 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:36:25,935 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:36:25,935 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:36:25,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:36:25 BoogieIcfgContainer [2024-11-16 08:36:25,937 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:36:25,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:36:25,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:36:25,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:36:25,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:36:23" (1/3) ... [2024-11-16 08:36:25,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7550aff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:36:25, skipping insertion in model container [2024-11-16 08:36:25,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:24" (2/3) ... [2024-11-16 08:36:25,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7550aff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:36:25, skipping insertion in model container [2024-11-16 08:36:25,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:36:25" (3/3) ... [2024-11-16 08:36:25,949 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-16 08:36:25,965 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:36:25,965 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:36:26,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:36:26,050 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;@13337f94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:36:26,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:36:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 378 states have (on average 1.566137566137566) internal successors, (592), 379 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:26,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:36:26,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:26,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:26,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:26,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:26,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1583233566, now seen corresponding path program 1 times [2024-11-16 08:36:26,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:26,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031018519] [2024-11-16 08:36:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:26,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:26,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:26,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031018519] [2024-11-16 08:36:26,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031018519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:26,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:26,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:36:26,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385983105] [2024-11-16 08:36:26,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:26,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:36:26,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:26,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:36:26,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:36:26,766 INFO L87 Difference]: Start difference. First operand has 380 states, 378 states have (on average 1.566137566137566) internal successors, (592), 379 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:26,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:26,927 INFO L93 Difference]: Finished difference Result 726 states and 1118 transitions. [2024-11-16 08:36:26,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:36:26,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-16 08:36:26,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:26,946 INFO L225 Difference]: With dead ends: 726 [2024-11-16 08:36:26,947 INFO L226 Difference]: Without dead ends: 376 [2024-11-16 08:36:26,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:36:26,956 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 191 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:26,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1555 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-16 08:36:27,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2024-11-16 08:36:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.4666666666666666) internal successors, (550), 375 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 550 transitions. [2024-11-16 08:36:27,032 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 550 transitions. Word has length 79 [2024-11-16 08:36:27,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:27,033 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 550 transitions. [2024-11-16 08:36:27,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,034 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 550 transitions. [2024-11-16 08:36:27,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 08:36:27,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:27,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:27,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:36:27,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:27,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:27,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1023202206, now seen corresponding path program 1 times [2024-11-16 08:36:27,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:27,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549932436] [2024-11-16 08:36:27,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:27,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:27,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549932436] [2024-11-16 08:36:27,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549932436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:27,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:27,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:27,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309172583] [2024-11-16 08:36:27,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:27,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:27,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:27,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:27,263 INFO L87 Difference]: Start difference. First operand 376 states and 550 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:27,316 INFO L93 Difference]: Finished difference Result 837 states and 1269 transitions. [2024-11-16 08:36:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:27,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-16 08:36:27,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:27,320 INFO L225 Difference]: With dead ends: 837 [2024-11-16 08:36:27,321 INFO L226 Difference]: Without dead ends: 541 [2024-11-16 08:36:27,323 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 [2024-11-16 08:36:27,325 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 314 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:27,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 955 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:27,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-16 08:36:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2024-11-16 08:36:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.4925650557620818) internal successors, (803), 538 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 803 transitions. [2024-11-16 08:36:27,362 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 803 transitions. Word has length 141 [2024-11-16 08:36:27,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:27,363 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 803 transitions. [2024-11-16 08:36:27,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 803 transitions. [2024-11-16 08:36:27,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 08:36:27,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:27,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:27,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:36:27,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:27,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:27,371 INFO L85 PathProgramCache]: Analyzing trace with hash -704452387, now seen corresponding path program 1 times [2024-11-16 08:36:27,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:27,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121501582] [2024-11-16 08:36:27,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:27,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:27,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:27,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121501582] [2024-11-16 08:36:27,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121501582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:27,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:27,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543311439] [2024-11-16 08:36:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:27,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:27,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:27,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:27,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:27,578 INFO L87 Difference]: Start difference. First operand 539 states and 803 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:27,621 INFO L93 Difference]: Finished difference Result 1264 states and 1933 transitions. [2024-11-16 08:36:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:27,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-16 08:36:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:27,626 INFO L225 Difference]: With dead ends: 1264 [2024-11-16 08:36:27,627 INFO L226 Difference]: Without dead ends: 818 [2024-11-16 08:36:27,627 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 [2024-11-16 08:36:27,629 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 298 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:27,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 918 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-16 08:36:27,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 816. [2024-11-16 08:36:27,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 815 states have (on average 1.5116564417177913) internal successors, (1232), 815 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1232 transitions. [2024-11-16 08:36:27,674 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1232 transitions. Word has length 143 [2024-11-16 08:36:27,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:27,677 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1232 transitions. [2024-11-16 08:36:27,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1232 transitions. [2024-11-16 08:36:27,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 08:36:27,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:27,681 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:27,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:36:27,682 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:27,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1339214320, now seen corresponding path program 1 times [2024-11-16 08:36:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:27,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805697320] [2024-11-16 08:36:27,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:27,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:27,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:27,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805697320] [2024-11-16 08:36:27,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805697320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:27,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:27,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:27,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627855947] [2024-11-16 08:36:27,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:27,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:27,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:27,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:27,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:27,823 INFO L87 Difference]: Start difference. First operand 816 states and 1232 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:27,864 INFO L93 Difference]: Finished difference Result 1978 states and 3038 transitions. [2024-11-16 08:36:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:27,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-11-16 08:36:27,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:27,871 INFO L225 Difference]: With dead ends: 1978 [2024-11-16 08:36:27,871 INFO L226 Difference]: Without dead ends: 1268 [2024-11-16 08:36:27,872 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 [2024-11-16 08:36:27,873 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 282 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:27,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 953 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:27,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-11-16 08:36:27,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1266. [2024-11-16 08:36:27,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.5217391304347827) internal successors, (1925), 1265 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1925 transitions. [2024-11-16 08:36:27,901 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1925 transitions. Word has length 145 [2024-11-16 08:36:27,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:27,902 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1925 transitions. [2024-11-16 08:36:27,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:27,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1925 transitions. [2024-11-16 08:36:27,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-16 08:36:27,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:27,906 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:27,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:36:27,907 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:27,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:27,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1824681249, now seen corresponding path program 1 times [2024-11-16 08:36:27,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:27,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682569793] [2024-11-16 08:36:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:27,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:28,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:28,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682569793] [2024-11-16 08:36:28,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682569793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:28,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:28,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:28,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122102476] [2024-11-16 08:36:28,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:28,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:28,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:28,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:28,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:28,029 INFO L87 Difference]: Start difference. First operand 1266 states and 1925 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:28,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:28,072 INFO L93 Difference]: Finished difference Result 3101 states and 4761 transitions. [2024-11-16 08:36:28,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:28,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2024-11-16 08:36:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:28,080 INFO L225 Difference]: With dead ends: 3101 [2024-11-16 08:36:28,080 INFO L226 Difference]: Without dead ends: 1954 [2024-11-16 08:36:28,082 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 [2024-11-16 08:36:28,083 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 266 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:28,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 844 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2024-11-16 08:36:28,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1952. [2024-11-16 08:36:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1952 states, 1951 states have (on average 1.522296258329062) internal successors, (2970), 1951 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2970 transitions. [2024-11-16 08:36:28,127 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2970 transitions. Word has length 147 [2024-11-16 08:36:28,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:28,128 INFO L471 AbstractCegarLoop]: Abstraction has 1952 states and 2970 transitions. [2024-11-16 08:36:28,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:28,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2970 transitions. [2024-11-16 08:36:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-16 08:36:28,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:28,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:28,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:36:28,135 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:28,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:28,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1251190226, now seen corresponding path program 1 times [2024-11-16 08:36:28,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524151728] [2024-11-16 08:36:28,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:28,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524151728] [2024-11-16 08:36:28,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524151728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:28,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:28,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:28,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983180540] [2024-11-16 08:36:28,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:28,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:28,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:28,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:28,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:28,279 INFO L87 Difference]: Start difference. First operand 1952 states and 2970 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:28,329 INFO L93 Difference]: Finished difference Result 4712 states and 7192 transitions. [2024-11-16 08:36:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:28,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2024-11-16 08:36:28,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:28,340 INFO L225 Difference]: With dead ends: 4712 [2024-11-16 08:36:28,341 INFO L226 Difference]: Without dead ends: 2892 [2024-11-16 08:36:28,345 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 [2024-11-16 08:36:28,349 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 250 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:28,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 807 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2024-11-16 08:36:28,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2890. [2024-11-16 08:36:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2889 states have (on average 1.51159570785739) internal successors, (4367), 2889 states have internal predecessors, (4367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4367 transitions. [2024-11-16 08:36:28,409 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4367 transitions. Word has length 149 [2024-11-16 08:36:28,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:28,409 INFO L471 AbstractCegarLoop]: Abstraction has 2890 states and 4367 transitions. [2024-11-16 08:36:28,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4367 transitions. [2024-11-16 08:36:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 08:36:28,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:28,416 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:28,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:36:28,417 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:28,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1679614385, now seen corresponding path program 1 times [2024-11-16 08:36:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:28,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317617627] [2024-11-16 08:36:28,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:28,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:28,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:28,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317617627] [2024-11-16 08:36:28,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317617627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:28,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:28,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:28,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102496584] [2024-11-16 08:36:28,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:28,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:28,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:28,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:28,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:28,634 INFO L87 Difference]: Start difference. First operand 2890 states and 4367 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:28,954 INFO L93 Difference]: Finished difference Result 16887 states and 25622 transitions. [2024-11-16 08:36:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2024-11-16 08:36:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:29,006 INFO L225 Difference]: With dead ends: 16887 [2024-11-16 08:36:29,007 INFO L226 Difference]: Without dead ends: 14133 [2024-11-16 08:36:29,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:29,020 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 3658 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3658 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:29,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3658 Valid, 2898 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14133 states. [2024-11-16 08:36:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14133 to 5547. [2024-11-16 08:36:29,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 5546 states have (on average 1.493148214929679) internal successors, (8281), 5546 states have internal predecessors, (8281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 8281 transitions. [2024-11-16 08:36:29,222 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 8281 transitions. Word has length 151 [2024-11-16 08:36:29,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:29,222 INFO L471 AbstractCegarLoop]: Abstraction has 5547 states and 8281 transitions. [2024-11-16 08:36:29,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:29,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 8281 transitions. [2024-11-16 08:36:29,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 08:36:29,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:29,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:29,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:36:29,234 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:29,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:29,235 INFO L85 PathProgramCache]: Analyzing trace with hash -668026735, now seen corresponding path program 1 times [2024-11-16 08:36:29,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:29,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948218713] [2024-11-16 08:36:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:29,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:29,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:29,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948218713] [2024-11-16 08:36:29,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948218713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:29,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:29,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:29,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222782304] [2024-11-16 08:36:29,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:29,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:29,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:29,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:29,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:29,592 INFO L87 Difference]: Start difference. First operand 5547 states and 8281 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:29,978 INFO L93 Difference]: Finished difference Result 27696 states and 41125 transitions. [2024-11-16 08:36:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:29,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-11-16 08:36:29,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:30,050 INFO L225 Difference]: With dead ends: 27696 [2024-11-16 08:36:30,050 INFO L226 Difference]: Without dead ends: 22275 [2024-11-16 08:36:30,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:30,067 INFO L432 NwaCegarLoop]: 749 mSDtfsCounter, 2474 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:30,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2474 Valid, 2011 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:36:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22275 states. [2024-11-16 08:36:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22275 to 22267. [2024-11-16 08:36:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22267 states, 22266 states have (on average 1.4760621575496273) internal successors, (32866), 22266 states have internal predecessors, (32866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:30,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22267 states to 22267 states and 32866 transitions. [2024-11-16 08:36:30,626 INFO L78 Accepts]: Start accepts. Automaton has 22267 states and 32866 transitions. Word has length 157 [2024-11-16 08:36:30,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:30,626 INFO L471 AbstractCegarLoop]: Abstraction has 22267 states and 32866 transitions. [2024-11-16 08:36:30,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:30,627 INFO L276 IsEmpty]: Start isEmpty. Operand 22267 states and 32866 transitions. [2024-11-16 08:36:30,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 08:36:30,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:30,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:30,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:36:30,670 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:30,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:30,671 INFO L85 PathProgramCache]: Analyzing trace with hash 229787892, now seen corresponding path program 1 times [2024-11-16 08:36:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602543320] [2024-11-16 08:36:30,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:30,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:30,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602543320] [2024-11-16 08:36:30,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602543320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:30,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:30,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:30,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30222296] [2024-11-16 08:36:30,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:30,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:30,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:30,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:30,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:30,868 INFO L87 Difference]: Start difference. First operand 22267 states and 32866 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:31,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:31,055 INFO L93 Difference]: Finished difference Result 50886 states and 75021 transitions. [2024-11-16 08:36:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:31,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2024-11-16 08:36:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:31,128 INFO L225 Difference]: With dead ends: 50886 [2024-11-16 08:36:31,129 INFO L226 Difference]: Without dead ends: 37029 [2024-11-16 08:36:31,161 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 [2024-11-16 08:36:31,162 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 342 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:31,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1098 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37029 states. [2024-11-16 08:36:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37029 to 37027. [2024-11-16 08:36:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37027 states, 37026 states have (on average 1.4655917463404093) internal successors, (54265), 37026 states have internal predecessors, (54265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:32,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37027 states to 37027 states and 54265 transitions. [2024-11-16 08:36:32,300 INFO L78 Accepts]: Start accepts. Automaton has 37027 states and 54265 transitions. Word has length 159 [2024-11-16 08:36:32,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:32,301 INFO L471 AbstractCegarLoop]: Abstraction has 37027 states and 54265 transitions. [2024-11-16 08:36:32,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:32,302 INFO L276 IsEmpty]: Start isEmpty. Operand 37027 states and 54265 transitions. [2024-11-16 08:36:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 08:36:32,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:32,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:32,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:36:32,504 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:32,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:32,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1408964168, now seen corresponding path program 1 times [2024-11-16 08:36:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:32,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48861965] [2024-11-16 08:36:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:32,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:32,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:32,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48861965] [2024-11-16 08:36:32,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48861965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:32,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:32,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:32,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052729709] [2024-11-16 08:36:32,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:32,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:32,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:32,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:32,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:32,801 INFO L87 Difference]: Start difference. First operand 37027 states and 54265 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:33,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:33,351 INFO L93 Difference]: Finished difference Result 73399 states and 108324 transitions. [2024-11-16 08:36:33,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:33,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2024-11-16 08:36:33,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:33,509 INFO L225 Difference]: With dead ends: 73399 [2024-11-16 08:36:33,509 INFO L226 Difference]: Without dead ends: 66453 [2024-11-16 08:36:33,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:33,553 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 2955 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:33,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 3017 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:36:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66453 states. [2024-11-16 08:36:34,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66453 to 44624. [2024-11-16 08:36:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44624 states, 44623 states have (on average 1.4648051453286421) internal successors, (65364), 44623 states have internal predecessors, (65364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44624 states to 44624 states and 65364 transitions. [2024-11-16 08:36:34,785 INFO L78 Accepts]: Start accepts. Automaton has 44624 states and 65364 transitions. Word has length 159 [2024-11-16 08:36:34,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:34,795 INFO L471 AbstractCegarLoop]: Abstraction has 44624 states and 65364 transitions. [2024-11-16 08:36:34,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:34,796 INFO L276 IsEmpty]: Start isEmpty. Operand 44624 states and 65364 transitions. [2024-11-16 08:36:34,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 08:36:34,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:34,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:34,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:36:34,854 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:34,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1220108353, now seen corresponding path program 1 times [2024-11-16 08:36:34,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:34,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739350456] [2024-11-16 08:36:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:34,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739350456] [2024-11-16 08:36:34,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739350456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:34,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:34,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:34,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639395831] [2024-11-16 08:36:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:34,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:34,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:34,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:34,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:34,952 INFO L87 Difference]: Start difference. First operand 44624 states and 65364 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:35,245 INFO L93 Difference]: Finished difference Result 69904 states and 102020 transitions. [2024-11-16 08:36:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:35,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2024-11-16 08:36:35,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:35,359 INFO L225 Difference]: With dead ends: 69904 [2024-11-16 08:36:35,359 INFO L226 Difference]: Without dead ends: 57461 [2024-11-16 08:36:35,396 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 [2024-11-16 08:36:35,397 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 273 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:35,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1250 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57461 states. [2024-11-16 08:36:36,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57461 to 57459. [2024-11-16 08:36:36,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57459 states, 57458 states have (on average 1.4525392460579902) internal successors, (83460), 57458 states have internal predecessors, (83460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57459 states to 57459 states and 83460 transitions. [2024-11-16 08:36:36,706 INFO L78 Accepts]: Start accepts. Automaton has 57459 states and 83460 transitions. Word has length 159 [2024-11-16 08:36:36,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:36,707 INFO L471 AbstractCegarLoop]: Abstraction has 57459 states and 83460 transitions. [2024-11-16 08:36:36,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:36,708 INFO L276 IsEmpty]: Start isEmpty. Operand 57459 states and 83460 transitions. [2024-11-16 08:36:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 08:36:36,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:36,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:36,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:36:36,776 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:36,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash -679325969, now seen corresponding path program 1 times [2024-11-16 08:36:36,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:36,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811408677] [2024-11-16 08:36:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:36,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:36,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:36,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811408677] [2024-11-16 08:36:36,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811408677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:36,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:36,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127599249] [2024-11-16 08:36:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:36,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:36,872 INFO L87 Difference]: Start difference. First operand 57459 states and 83460 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:37,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:37,466 INFO L93 Difference]: Finished difference Result 127075 states and 183382 transitions. [2024-11-16 08:36:37,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:37,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2024-11-16 08:36:37,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:37,594 INFO L225 Difference]: With dead ends: 127075 [2024-11-16 08:36:37,594 INFO L226 Difference]: Without dead ends: 89349 [2024-11-16 08:36:37,642 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 [2024-11-16 08:36:37,643 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 291 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:37,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1269 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89349 states. [2024-11-16 08:36:38,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89349 to 89347. [2024-11-16 08:36:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89347 states, 89346 states have (on average 1.4347816354397511) internal successors, (128192), 89346 states have internal predecessors, (128192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:38,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89347 states to 89347 states and 128192 transitions. [2024-11-16 08:36:38,983 INFO L78 Accepts]: Start accepts. Automaton has 89347 states and 128192 transitions. Word has length 159 [2024-11-16 08:36:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:38,983 INFO L471 AbstractCegarLoop]: Abstraction has 89347 states and 128192 transitions. [2024-11-16 08:36:38,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 89347 states and 128192 transitions. [2024-11-16 08:36:39,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 08:36:39,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:39,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:39,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:36:39,085 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:39,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1136540305, now seen corresponding path program 1 times [2024-11-16 08:36:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:39,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354466356] [2024-11-16 08:36:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:39,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:39,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:39,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354466356] [2024-11-16 08:36:39,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354466356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:39,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:39,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:39,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188614139] [2024-11-16 08:36:39,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:39,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:39,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:39,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:39,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:39,187 INFO L87 Difference]: Start difference. First operand 89347 states and 128192 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:40,201 INFO L93 Difference]: Finished difference Result 231168 states and 329601 transitions. [2024-11-16 08:36:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:40,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2024-11-16 08:36:40,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:40,368 INFO L225 Difference]: With dead ends: 231168 [2024-11-16 08:36:40,369 INFO L226 Difference]: Without dead ends: 148448 [2024-11-16 08:36:40,436 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 [2024-11-16 08:36:40,436 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 358 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:40,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1305 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148448 states. [2024-11-16 08:36:42,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148448 to 148446. [2024-11-16 08:36:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148446 states, 148445 states have (on average 1.41363467951093) internal successors, (209847), 148445 states have internal predecessors, (209847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:43,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148446 states to 148446 states and 209847 transitions. [2024-11-16 08:36:43,125 INFO L78 Accepts]: Start accepts. Automaton has 148446 states and 209847 transitions. Word has length 159 [2024-11-16 08:36:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:43,126 INFO L471 AbstractCegarLoop]: Abstraction has 148446 states and 209847 transitions. [2024-11-16 08:36:43,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 148446 states and 209847 transitions. [2024-11-16 08:36:43,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:36:43,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:43,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:43,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:36:43,324 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:43,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:43,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1662578414, now seen corresponding path program 1 times [2024-11-16 08:36:43,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:43,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383335891] [2024-11-16 08:36:43,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:43,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:43,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:43,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383335891] [2024-11-16 08:36:43,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383335891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:43,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:43,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:43,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161097792] [2024-11-16 08:36:43,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:43,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:43,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:43,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:43,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:43,421 INFO L87 Difference]: Start difference. First operand 148446 states and 209847 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:45,532 INFO L93 Difference]: Finished difference Result 424015 states and 598800 transitions. [2024-11-16 08:36:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:45,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-16 08:36:45,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:45,971 INFO L225 Difference]: With dead ends: 424015 [2024-11-16 08:36:45,971 INFO L226 Difference]: Without dead ends: 295485 [2024-11-16 08:36:46,088 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 [2024-11-16 08:36:46,089 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 343 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:46,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 805 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:36:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295485 states. [2024-11-16 08:36:50,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295485 to 295483. [2024-11-16 08:36:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295483 states, 295482 states have (on average 1.406677902545671) internal successors, (415648), 295482 states have internal predecessors, (415648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295483 states to 295483 states and 415648 transitions. [2024-11-16 08:36:51,180 INFO L78 Accepts]: Start accepts. Automaton has 295483 states and 415648 transitions. Word has length 161 [2024-11-16 08:36:51,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:51,180 INFO L471 AbstractCegarLoop]: Abstraction has 295483 states and 415648 transitions. [2024-11-16 08:36:51,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:51,181 INFO L276 IsEmpty]: Start isEmpty. Operand 295483 states and 415648 transitions. [2024-11-16 08:36:52,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:36:52,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:52,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:52,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:36:52,520 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:52,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:52,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2049771695, now seen corresponding path program 1 times [2024-11-16 08:36:52,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:52,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821509888] [2024-11-16 08:36:52,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:52,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:52,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:52,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821509888] [2024-11-16 08:36:52,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821509888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:52,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:52,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:36:52,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488916954] [2024-11-16 08:36:52,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:52,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:36:52,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:36:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:36:52,942 INFO L87 Difference]: Start difference. First operand 295483 states and 415648 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:55,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:55,703 INFO L93 Difference]: Finished difference Result 729715 states and 1028040 transitions. [2024-11-16 08:36:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:36:55,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-16 08:36:55,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:56,437 INFO L225 Difference]: With dead ends: 729715 [2024-11-16 08:36:56,437 INFO L226 Difference]: Without dead ends: 446134 [2024-11-16 08:36:56,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:56,659 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 1890 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:56,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 479 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:36:56,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446134 states. [2024-11-16 08:37:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446134 to 428261. [2024-11-16 08:37:03,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428261 states, 428260 states have (on average 1.407292299070658) internal successors, (602687), 428260 states have internal predecessors, (602687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428261 states to 428261 states and 602687 transitions. [2024-11-16 08:37:05,368 INFO L78 Accepts]: Start accepts. Automaton has 428261 states and 602687 transitions. Word has length 161 [2024-11-16 08:37:05,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:05,368 INFO L471 AbstractCegarLoop]: Abstraction has 428261 states and 602687 transitions. [2024-11-16 08:37:05,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 428261 states and 602687 transitions. [2024-11-16 08:37:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:37:05,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:05,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:05,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:37:05,698 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:05,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash -412290191, now seen corresponding path program 1 times [2024-11-16 08:37:05,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:05,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020000868] [2024-11-16 08:37:05,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:05,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:05,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:05,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020000868] [2024-11-16 08:37:05,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020000868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:05,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:05,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:05,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064361038] [2024-11-16 08:37:05,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:05,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:05,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:05,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:05,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:05,839 INFO L87 Difference]: Start difference. First operand 428261 states and 602687 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:08,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:08,788 INFO L93 Difference]: Finished difference Result 814923 states and 1147497 transitions. [2024-11-16 08:37:08,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:08,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2024-11-16 08:37:08,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:10,232 INFO L225 Difference]: With dead ends: 814923 [2024-11-16 08:37:10,233 INFO L226 Difference]: Without dead ends: 410512 [2024-11-16 08:37:10,407 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 [2024-11-16 08:37:10,412 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 208 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:10,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 830 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:10,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410512 states.