./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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.6.ufo.UNBOUNDED.pals.c.v+cfa-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 e806b2de9400f1b211ac03466f80bb324cfea44da3c1d913127efd4a407821e8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:56:37,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:56:37,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:56:37,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:56:37,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:56:37,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:56:37,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:56:37,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:56:37,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:56:37,691 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:56:37,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:56:37,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:56:37,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:56:37,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:56:37,693 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:56:37,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:56:37,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:56:37,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:56:37,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:56:37,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:56:37,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:56:37,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:56:37,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:56:37,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:56:37,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:56:37,699 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:56:37,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:56:37,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:56:37,701 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:56:37,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:56:37,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:56:37,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:56:37,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:56:37,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:56:37,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:56:37,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:56:37,704 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:56:37,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:56:37,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:56:37,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:56:37,704 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:56:37,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:56:37,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e806b2de9400f1b211ac03466f80bb324cfea44da3c1d913127efd4a407821e8 [2024-11-09 23:56:37,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:56:37,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:56:37,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:56:37,976 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:56:37,976 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:56:37,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:56:39,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:56:39,689 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:56:39,690 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:56:39,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336537c6e/dba5954c72d34f9a88a1ffad0d02d91d/FLAG2fcf7395d [2024-11-09 23:56:40,006 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336537c6e/dba5954c72d34f9a88a1ffad0d02d91d [2024-11-09 23:56:40,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:56:40,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:56:40,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:56:40,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:56:40,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:56:40,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3bdc44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40, skipping insertion in model container [2024-11-09 23:56:40,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,080 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:56:40,363 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.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7399,7412] [2024-11-09 23:56:40,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:56:40,439 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:56:40,497 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.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7399,7412] [2024-11-09 23:56:40,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:56:40,561 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:56:40,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40 WrapperNode [2024-11-09 23:56:40,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:56:40,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:56:40,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:56:40,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:56:40,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,625 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 682 [2024-11-09 23:56:40,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:56:40,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:56:40,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:56:40,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:56:40,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,641 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,665 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]. [2024-11-09 23:56:40,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,676 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:56:40,690 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:56:40,690 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:56:40,690 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:56:40,691 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (1/1) ... [2024-11-09 23:56:40,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:56:40,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:56:40,730 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) [2024-11-09 23:56:40,736 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 [2024-11-09 23:56:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:56:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:56:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:56:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:56:40,940 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:56:40,943 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:56:41,635 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L250: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:56:41,635 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L250: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:56:41,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L250: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:56:41,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L250: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:56:41,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L250: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:56:41,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:56:41,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L862: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:56:41,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L599: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:56:41,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L286: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:56:41,637 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L286: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:56:41,637 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L286: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:56:41,637 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L286: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:56:41,637 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L799: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:56:41,637 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L685: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:56:41,637 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: havoc main_~node6__m6~0#1;havoc main_~node5__m5~0#1; [2024-11-09 23:56:41,637 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: havoc main_~node6__m6~0#1;havoc main_~node5__m5~0#1; [2024-11-09 23:56:41,638 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: havoc main_~node6__m6~0#1;havoc main_~node5__m5~0#1; [2024-11-09 23:56:41,638 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L322: havoc main_~node6__m6~0#1;havoc main_~node5__m5~0#1; [2024-11-09 23:56:41,638 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L124: havoc main_~init__tmp~0#1; [2024-11-09 23:56:41,638 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L455: havoc main_~node6____CPAchecker_TMP_1~0#1; [2024-11-09 23:56:41,638 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L771: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:56:41,638 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L541: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-09 23:56:41,638 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L427: havoc main_~node6____CPAchecker_TMP_0~0#1; [2024-11-09 23:56:41,639 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-09 23:56:41,639 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L627: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:56:41,639 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L363: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:56:41,639 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L363: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:56:41,640 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L363: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:56:41,640 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L513: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:56:41,689 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-09 23:56:41,690 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:56:41,715 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:56:41,715 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:56:41,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:56:41 BoogieIcfgContainer [2024-11-09 23:56:41,716 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:56:41,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:56:41,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:56:41,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:56:41,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:56:40" (1/3) ... [2024-11-09 23:56:41,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1251cfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:56:41, skipping insertion in model container [2024-11-09 23:56:41,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:56:40" (2/3) ... [2024-11-09 23:56:41,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1251cfc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:56:41, skipping insertion in model container [2024-11-09 23:56:41,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:56:41" (3/3) ... [2024-11-09 23:56:41,727 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:56:41,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:56:41,745 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:56:41,819 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:56:41,825 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;@6672ed4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:56:41,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:56:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 171 states have (on average 1.6666666666666667) internal successors, (285), 172 states have internal predecessors, (285), 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) [2024-11-09 23:56:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 23:56:41,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:41,840 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] [2024-11-09 23:56:41,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:41,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:41,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1661172876, now seen corresponding path program 1 times [2024-11-09 23:56:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:41,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088340536] [2024-11-09 23:56:41,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:41,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:42,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:42,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:42,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088340536] [2024-11-09 23:56:42,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088340536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:42,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:42,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:42,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420340281] [2024-11-09 23:56:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:42,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:42,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:42,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:42,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:42,445 INFO L87 Difference]: Start difference. First operand has 173 states, 171 states have (on average 1.6666666666666667) internal successors, (285), 172 states have internal predecessors, (285), 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 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-09 23:56:42,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:42,545 INFO L93 Difference]: Finished difference Result 412 states and 654 transitions. [2024-11-09 23:56:42,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:42,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2024-11-09 23:56:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:42,561 INFO L225 Difference]: With dead ends: 412 [2024-11-09 23:56:42,562 INFO L226 Difference]: Without dead ends: 277 [2024-11-09 23:56:42,565 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 [2024-11-09 23:56:42,571 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 211 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:42,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 611 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:42,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-09 23:56:42,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 275. [2024-11-09 23:56:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 274 states have (on average 1.4781021897810218) internal successors, (405), 274 states have internal predecessors, (405), 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) [2024-11-09 23:56:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 405 transitions. [2024-11-09 23:56:42,629 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 405 transitions. Word has length 74 [2024-11-09 23:56:42,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:42,629 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 405 transitions. [2024-11-09 23:56:42,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-09 23:56:42,630 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 405 transitions. [2024-11-09 23:56:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 23:56:42,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:42,632 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] [2024-11-09 23:56:42,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:56:42,633 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:42,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:42,633 INFO L85 PathProgramCache]: Analyzing trace with hash -197021714, now seen corresponding path program 1 times [2024-11-09 23:56:42,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:42,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428610532] [2024-11-09 23:56:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:42,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:42,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:42,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428610532] [2024-11-09 23:56:42,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428610532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:42,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:42,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:42,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876968956] [2024-11-09 23:56:42,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:42,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:42,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:42,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:42,785 INFO L87 Difference]: Start difference. First operand 275 states and 405 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-09 23:56:42,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:42,832 INFO L93 Difference]: Finished difference Result 703 states and 1073 transitions. [2024-11-09 23:56:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:42,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2024-11-09 23:56:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:42,838 INFO L225 Difference]: With dead ends: 703 [2024-11-09 23:56:42,838 INFO L226 Difference]: Without dead ends: 472 [2024-11-09 23:56:42,842 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 [2024-11-09 23:56:42,843 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 172 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:42,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 539 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:42,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-09 23:56:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 470. [2024-11-09 23:56:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.511727078891258) internal successors, (709), 469 states have internal predecessors, (709), 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) [2024-11-09 23:56:42,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 709 transitions. [2024-11-09 23:56:42,889 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 709 transitions. Word has length 75 [2024-11-09 23:56:42,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:42,890 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 709 transitions. [2024-11-09 23:56:42,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-09 23:56:42,890 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 709 transitions. [2024-11-09 23:56:42,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 23:56:42,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:42,892 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] [2024-11-09 23:56:42,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:56:42,893 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:42,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:42,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1923552222, now seen corresponding path program 1 times [2024-11-09 23:56:42,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:42,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614932031] [2024-11-09 23:56:42,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:42,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:43,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:43,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614932031] [2024-11-09 23:56:43,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614932031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:43,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:43,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:43,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162248809] [2024-11-09 23:56:43,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:43,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:43,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:43,066 INFO L87 Difference]: Start difference. First operand 470 states and 709 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-09 23:56:43,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:43,102 INFO L93 Difference]: Finished difference Result 1254 states and 1931 transitions. [2024-11-09 23:56:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:43,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-09 23:56:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:43,108 INFO L225 Difference]: With dead ends: 1254 [2024-11-09 23:56:43,109 INFO L226 Difference]: Without dead ends: 828 [2024-11-09 23:56:43,112 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 [2024-11-09 23:56:43,114 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 167 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:43,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 524 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:43,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-09 23:56:43,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 826. [2024-11-09 23:56:43,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 825 states have (on average 1.5284848484848486) internal successors, (1261), 825 states have internal predecessors, (1261), 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) [2024-11-09 23:56:43,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1261 transitions. [2024-11-09 23:56:43,148 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1261 transitions. Word has length 76 [2024-11-09 23:56:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:43,148 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1261 transitions. [2024-11-09 23:56:43,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-09 23:56:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1261 transitions. [2024-11-09 23:56:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 23:56:43,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:43,151 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] [2024-11-09 23:56:43,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:56:43,151 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:43,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:43,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1252663768, now seen corresponding path program 1 times [2024-11-09 23:56:43,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:43,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687073419] [2024-11-09 23:56:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:43,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:43,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:43,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687073419] [2024-11-09 23:56:43,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687073419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:43,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:43,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:43,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178829600] [2024-11-09 23:56:43,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:43,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:43,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:43,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:43,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:43,270 INFO L87 Difference]: Start difference. First operand 826 states and 1261 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-09 23:56:43,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:43,308 INFO L93 Difference]: Finished difference Result 2254 states and 3479 transitions. [2024-11-09 23:56:43,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:43,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2024-11-09 23:56:43,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:43,315 INFO L225 Difference]: With dead ends: 2254 [2024-11-09 23:56:43,315 INFO L226 Difference]: Without dead ends: 1472 [2024-11-09 23:56:43,318 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 [2024-11-09 23:56:43,319 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 162 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:43,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 509 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:43,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2024-11-09 23:56:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1470. [2024-11-09 23:56:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 1.5336963921034716) internal successors, (2253), 1469 states have internal predecessors, (2253), 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) [2024-11-09 23:56:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2253 transitions. [2024-11-09 23:56:43,372 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2253 transitions. Word has length 77 [2024-11-09 23:56:43,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:43,375 INFO L471 AbstractCegarLoop]: Abstraction has 1470 states and 2253 transitions. [2024-11-09 23:56:43,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-09 23:56:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2253 transitions. [2024-11-09 23:56:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 23:56:43,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:43,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:43,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:56:43,383 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:43,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:43,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1179772472, now seen corresponding path program 1 times [2024-11-09 23:56:43,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100576543] [2024-11-09 23:56:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:43,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:43,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:43,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100576543] [2024-11-09 23:56:43,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100576543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:43,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:43,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:43,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132801135] [2024-11-09 23:56:43,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:43,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:43,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:43,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:43,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:43,526 INFO L87 Difference]: Start difference. First operand 1470 states and 2253 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-09 23:56:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:43,570 INFO L93 Difference]: Finished difference Result 4050 states and 6239 transitions. [2024-11-09 23:56:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:43,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-11-09 23:56:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:43,581 INFO L225 Difference]: With dead ends: 4050 [2024-11-09 23:56:43,581 INFO L226 Difference]: Without dead ends: 2624 [2024-11-09 23:56:43,583 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 [2024-11-09 23:56:43,584 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 157 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:43,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 494 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:43,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-11-09 23:56:43,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2622. [2024-11-09 23:56:43,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2621 states have (on average 1.5310950019076688) internal successors, (4013), 2621 states have internal predecessors, (4013), 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) [2024-11-09 23:56:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 4013 transitions. [2024-11-09 23:56:43,645 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 4013 transitions. Word has length 78 [2024-11-09 23:56:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:43,646 INFO L471 AbstractCegarLoop]: Abstraction has 2622 states and 4013 transitions. [2024-11-09 23:56:43,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-09 23:56:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 4013 transitions. [2024-11-09 23:56:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 23:56:43,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:43,649 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] [2024-11-09 23:56:43,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:56:43,650 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:43,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1239146978, now seen corresponding path program 1 times [2024-11-09 23:56:43,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:43,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488397842] [2024-11-09 23:56:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:43,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:43,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:43,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:43,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488397842] [2024-11-09 23:56:43,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488397842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:43,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:43,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:56:43,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112100788] [2024-11-09 23:56:43,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:43,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:56:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:56:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:56:43,909 INFO L87 Difference]: Start difference. First operand 2622 states and 4013 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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) [2024-11-09 23:56:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:44,261 INFO L93 Difference]: Finished difference Result 20668 states and 31796 transitions. [2024-11-09 23:56:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:56:44,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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 [2024-11-09 23:56:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:44,321 INFO L225 Difference]: With dead ends: 20668 [2024-11-09 23:56:44,321 INFO L226 Difference]: Without dead ends: 18090 [2024-11-09 23:56:44,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:56:44,333 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 2247 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 4105 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:44,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 4105 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:56:44,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18090 states. [2024-11-09 23:56:44,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18090 to 5198. [2024-11-09 23:56:44,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5197 states have (on average 1.5233788724264) internal successors, (7917), 5197 states have internal predecessors, (7917), 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) [2024-11-09 23:56:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 7917 transitions. [2024-11-09 23:56:44,562 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 7917 transitions. Word has length 79 [2024-11-09 23:56:44,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:44,562 INFO L471 AbstractCegarLoop]: Abstraction has 5198 states and 7917 transitions. [2024-11-09 23:56:44,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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) [2024-11-09 23:56:44,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 7917 transitions. [2024-11-09 23:56:44,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 23:56:44,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:44,564 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] [2024-11-09 23:56:44,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:56:44,565 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:44,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:44,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1144874754, now seen corresponding path program 1 times [2024-11-09 23:56:44,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:44,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305576288] [2024-11-09 23:56:44,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:44,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:44,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:44,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:44,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305576288] [2024-11-09 23:56:44,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305576288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:44,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:44,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:56:44,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067480758] [2024-11-09 23:56:44,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:44,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:56:44,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:44,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:56:44,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:56:44,912 INFO L87 Difference]: Start difference. First operand 5198 states and 7917 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-09 23:56:45,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:45,187 INFO L93 Difference]: Finished difference Result 31642 states and 48083 transitions. [2024-11-09 23:56:45,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:56:45,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 81 [2024-11-09 23:56:45,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:45,253 INFO L225 Difference]: With dead ends: 31642 [2024-11-09 23:56:45,253 INFO L226 Difference]: Without dead ends: 26488 [2024-11-09 23:56:45,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:56:45,273 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 1103 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:45,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 1656 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:56:45,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26488 states. [2024-11-09 23:56:45,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26488 to 26478. [2024-11-09 23:56:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26478 states, 26477 states have (on average 1.516070551799675) internal successors, (40141), 26477 states have internal predecessors, (40141), 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) [2024-11-09 23:56:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26478 states to 26478 states and 40141 transitions. [2024-11-09 23:56:45,904 INFO L78 Accepts]: Start accepts. Automaton has 26478 states and 40141 transitions. Word has length 81 [2024-11-09 23:56:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:45,905 INFO L471 AbstractCegarLoop]: Abstraction has 26478 states and 40141 transitions. [2024-11-09 23:56:45,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-09 23:56:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 26478 states and 40141 transitions. [2024-11-09 23:56:45,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 23:56:45,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:45,910 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] [2024-11-09 23:56:45,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:56:45,910 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:45,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash 477247415, now seen corresponding path program 1 times [2024-11-09 23:56:45,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:45,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442157885] [2024-11-09 23:56:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:45,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:45,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:45,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442157885] [2024-11-09 23:56:45,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442157885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:45,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:45,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:45,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544421637] [2024-11-09 23:56:45,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:45,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:45,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:45,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:45,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:45,994 INFO L87 Difference]: Start difference. First operand 26478 states and 40141 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-09 23:56:46,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:46,463 INFO L93 Difference]: Finished difference Result 72370 states and 109327 transitions. [2024-11-09 23:56:46,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:46,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-11-09 23:56:46,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:46,575 INFO L225 Difference]: With dead ends: 72370 [2024-11-09 23:56:46,575 INFO L226 Difference]: Without dead ends: 45936 [2024-11-09 23:56:46,617 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 [2024-11-09 23:56:46,619 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 179 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:46,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 580 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:46,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45936 states. [2024-11-09 23:56:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45936 to 45934. [2024-11-09 23:56:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45934 states, 45933 states have (on average 1.4988134892125486) internal successors, (68845), 45933 states have internal predecessors, (68845), 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) [2024-11-09 23:56:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45934 states to 45934 states and 68845 transitions. [2024-11-09 23:56:48,040 INFO L78 Accepts]: Start accepts. Automaton has 45934 states and 68845 transitions. Word has length 82 [2024-11-09 23:56:48,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:48,042 INFO L471 AbstractCegarLoop]: Abstraction has 45934 states and 68845 transitions. [2024-11-09 23:56:48,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-09 23:56:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 45934 states and 68845 transitions. [2024-11-09 23:56:48,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 23:56:48,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:48,045 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] [2024-11-09 23:56:48,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:56:48,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:48,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1719510181, now seen corresponding path program 1 times [2024-11-09 23:56:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284505953] [2024-11-09 23:56:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:48,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:48,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:48,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284505953] [2024-11-09 23:56:48,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284505953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:48,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:48,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:56:48,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132910354] [2024-11-09 23:56:48,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:48,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:56:48,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:48,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:56:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:48,319 INFO L87 Difference]: Start difference. First operand 45934 states and 68845 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-09 23:56:48,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:48,868 INFO L93 Difference]: Finished difference Result 131186 states and 196719 transitions. [2024-11-09 23:56:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:56:48,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 83 [2024-11-09 23:56:48,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:49,220 INFO L225 Difference]: With dead ends: 131186 [2024-11-09 23:56:49,221 INFO L226 Difference]: Without dead ends: 85296 [2024-11-09 23:56:49,279 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 [2024-11-09 23:56:49,283 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 1042 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:49,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 274 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:56:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85296 states. [2024-11-09 23:56:50,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85296 to 85294. [2024-11-09 23:56:50,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85294 states, 85293 states have (on average 1.4914823021818906) internal successors, (127213), 85293 states have internal predecessors, (127213), 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) [2024-11-09 23:56:50,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85294 states to 85294 states and 127213 transitions. [2024-11-09 23:56:50,965 INFO L78 Accepts]: Start accepts. Automaton has 85294 states and 127213 transitions. Word has length 83 [2024-11-09 23:56:50,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:50,965 INFO L471 AbstractCegarLoop]: Abstraction has 85294 states and 127213 transitions. [2024-11-09 23:56:50,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-09 23:56:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 85294 states and 127213 transitions. [2024-11-09 23:56:50,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 23:56:50,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:50,967 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] [2024-11-09 23:56:50,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:56:50,967 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:50,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:50,968 INFO L85 PathProgramCache]: Analyzing trace with hash 613215428, now seen corresponding path program 1 times [2024-11-09 23:56:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:50,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687618464] [2024-11-09 23:56:50,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:50,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:51,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:51,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687618464] [2024-11-09 23:56:51,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687618464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:51,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:51,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:56:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648226590] [2024-11-09 23:56:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:51,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:56:51,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:51,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:56:51,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:51,566 INFO L87 Difference]: Start difference. First operand 85294 states and 127213 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-11-09 23:56:51,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:51,880 INFO L93 Difference]: Finished difference Result 89520 states and 132846 transitions. [2024-11-09 23:56:51,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:56:51,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2024-11-09 23:56:51,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:52,062 INFO L225 Difference]: With dead ends: 89520 [2024-11-09 23:56:52,062 INFO L226 Difference]: Without dead ends: 89518 [2024-11-09 23:56:52,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:52,104 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:52,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 934 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89518 states. [2024-11-09 23:56:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89518 to 89518. [2024-11-09 23:56:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89518 states, 89517 states have (on average 1.4682909391512227) internal successors, (131437), 89517 states have internal predecessors, (131437), 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) [2024-11-09 23:56:53,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89518 states to 89518 states and 131437 transitions. [2024-11-09 23:56:53,678 INFO L78 Accepts]: Start accepts. Automaton has 89518 states and 131437 transitions. Word has length 83 [2024-11-09 23:56:53,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:53,679 INFO L471 AbstractCegarLoop]: Abstraction has 89518 states and 131437 transitions. [2024-11-09 23:56:53,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-11-09 23:56:53,679 INFO L276 IsEmpty]: Start isEmpty. Operand 89518 states and 131437 transitions. [2024-11-09 23:56:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:56:53,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:53,680 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] [2024-11-09 23:56:53,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:56:53,681 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:53,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:53,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2006233383, now seen corresponding path program 1 times [2024-11-09 23:56:53,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:53,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769046731] [2024-11-09 23:56:53,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:53,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:53,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:53,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769046731] [2024-11-09 23:56:53,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769046731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:53,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:53,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:53,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784952884] [2024-11-09 23:56:53,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:53,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:53,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:53,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:53,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:53,802 INFO L87 Difference]: Start difference. First operand 89518 states and 131437 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-09 23:56:54,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:54,813 INFO L93 Difference]: Finished difference Result 201428 states and 295521 transitions. [2024-11-09 23:56:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:54,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2024-11-09 23:56:54,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:54,950 INFO L225 Difference]: With dead ends: 201428 [2024-11-09 23:56:54,950 INFO L226 Difference]: Without dead ends: 111954 [2024-11-09 23:56:55,026 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 [2024-11-09 23:56:55,026 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 144 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 428 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 [2024-11-09 23:56:55,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 428 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111954 states. [2024-11-09 23:56:56,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111954 to 111600. [2024-11-09 23:56:56,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111600 states, 111599 states have (on average 1.4612227708133585) internal successors, (163071), 111599 states have internal predecessors, (163071), 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) [2024-11-09 23:56:57,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111600 states to 111600 states and 163071 transitions. [2024-11-09 23:56:57,149 INFO L78 Accepts]: Start accepts. Automaton has 111600 states and 163071 transitions. Word has length 84 [2024-11-09 23:56:57,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:57,150 INFO L471 AbstractCegarLoop]: Abstraction has 111600 states and 163071 transitions. [2024-11-09 23:56:57,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-09 23:56:57,150 INFO L276 IsEmpty]: Start isEmpty. Operand 111600 states and 163071 transitions. [2024-11-09 23:56:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 23:56:57,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:57,188 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:57,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:56:57,188 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:57,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:57,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1981494619, now seen corresponding path program 1 times [2024-11-09 23:56:57,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:57,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688235581] [2024-11-09 23:56:57,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:57,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:57,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:57,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688235581] [2024-11-09 23:56:57,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688235581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:56:57,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946520142] [2024-11-09 23:56:57,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:57,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:56:57,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:56:57,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:56:57,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:56:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:57,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 23:56:57,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:56:58,581 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:58,582 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:56:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:59,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946520142] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:56:59,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:56:59,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 21 [2024-11-09 23:56:59,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828334707] [2024-11-09 23:56:59,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:56:59,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 23:56:59,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:59,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 23:56:59,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-09 23:56:59,711 INFO L87 Difference]: Start difference. First operand 111600 states and 163071 transitions. Second operand has 21 states, 21 states have (on average 16.047619047619047) internal successors, (337), 21 states have internal predecessors, (337), 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) [2024-11-09 23:57:14,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:57:14,788 INFO L93 Difference]: Finished difference Result 1173884 states and 1718412 transitions. [2024-11-09 23:57:14,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2024-11-09 23:57:14,789 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 16.047619047619047) internal successors, (337), 21 states have internal predecessors, (337), 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 116 [2024-11-09 23:57:14,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:57:16,632 INFO L225 Difference]: With dead ends: 1173884 [2024-11-09 23:57:16,632 INFO L226 Difference]: Without dead ends: 1062330 [2024-11-09 23:57:16,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12190 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4690, Invalid=24722, Unknown=0, NotChecked=0, Total=29412 [2024-11-09 23:57:16,924 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 29194 mSDsluCounter, 5095 mSDsCounter, 0 mSdLazyCounter, 4708 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29194 SdHoareTripleChecker+Valid, 5600 SdHoareTripleChecker+Invalid, 4891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 4708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:57:16,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29194 Valid, 5600 Invalid, 4891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [183 Valid, 4708 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 23:57:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062330 states. [2024-11-09 23:57:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062330 to 788408. [2024-11-09 23:57:30,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788408 states, 788407 states have (on average 1.4502775850544198) internal successors, (1143409), 788407 states have internal predecessors, (1143409), 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) [2024-11-09 23:57:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788408 states to 788408 states and 1143409 transitions. [2024-11-09 23:57:34,012 INFO L78 Accepts]: Start accepts. Automaton has 788408 states and 1143409 transitions. Word has length 116 [2024-11-09 23:57:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:57:34,012 INFO L471 AbstractCegarLoop]: Abstraction has 788408 states and 1143409 transitions. [2024-11-09 23:57:34,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 16.047619047619047) internal successors, (337), 21 states have internal predecessors, (337), 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) [2024-11-09 23:57:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 788408 states and 1143409 transitions. [2024-11-09 23:57:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 23:57:34,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:57:34,052 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:57:34,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 23:57:34,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 23:57:34,254 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:57:34,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:57:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash -487622743, now seen corresponding path program 1 times [2024-11-09 23:57:34,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:57:34,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909787457] [2024-11-09 23:57:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:57:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:57:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:57:34,367 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:57:34,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:57:34,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909787457] [2024-11-09 23:57:34,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909787457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:57:34,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:57:34,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:57:34,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325484081] [2024-11-09 23:57:34,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:57:34,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:57:34,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:57:34,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:57:34,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:57:34,370 INFO L87 Difference]: Start difference. First operand 788408 states and 1143409 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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)