./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-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 30f0768bbff34913c5dfb0ad37a2819c04e85c489714efe7283dacc3cb1675b9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:02:15,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:02:15,646 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:02:15,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:02:15,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:02:15,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:02:15,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:02:15,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:02:15,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:02:15,690 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:02:15,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:02:15,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:02:15,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:02:15,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:02:15,693 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:02:15,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:02:15,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:02:15,694 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:02:15,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:02:15,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:02:15,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:02:15,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:02:15,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:02:15,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:02:15,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:02:15,700 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:02:15,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:02:15,701 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:02:15,701 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:02:15,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:02:15,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:02:15,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:02:15,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:02:15,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:02:15,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:02:15,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:02:15,704 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:02:15,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:02:15,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:02:15,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:02:15,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:02:15,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:02:15,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f0768bbff34913c5dfb0ad37a2819c04e85c489714efe7283dacc3cb1675b9 [2024-11-10 00:02:15,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:02:16,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:02:16,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:02:16,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:02:16,009 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:02:16,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-10 00:02:17,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:02:17,811 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:02:17,812 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-10 00:02:17,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72808945c/4b755d7d5a8b4cff9d89fc7acf668f8c/FLAG8913e2e2b [2024-11-10 00:02:17,858 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72808945c/4b755d7d5a8b4cff9d89fc7acf668f8c [2024-11-10 00:02:17,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:02:17,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:02:17,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:02:17,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:02:17,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:02:17,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:17" (1/1) ... [2024-11-10 00:02:17,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f366c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:17, skipping insertion in model container [2024-11-10 00:02:17,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:17" (1/1) ... [2024-11-10 00:02:17,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:02:18,201 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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9094,9107] [2024-11-10 00:02:18,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:02:18,281 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:02:18,402 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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9094,9107] [2024-11-10 00:02:18,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:02:18,466 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:02:18,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18 WrapperNode [2024-11-10 00:02:18,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:02:18,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:02:18,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:02:18,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:02:18,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,524 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 796 [2024-11-10 00:02:18,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:02:18,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:02:18,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:02:18,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:02:18,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,579 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]. [2024-11-10 00:02:18,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:02:18,617 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:02:18,617 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:02:18,617 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:02:18,618 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (1/1) ... [2024-11-10 00:02:18,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:02:18,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:02:18,665 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) [2024-11-10 00:02:18,668 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 [2024-11-10 00:02:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:02:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:02:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:02:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:02:18,868 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:02:18,870 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:02:19,635 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-10 00:02:19,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-10 00:02:19,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-10 00:02:19,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-10 00:02:19,663 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-10 00:02:19,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L350: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:02:19,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L350: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:02:19,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L350: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:02:19,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L350: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:02:19,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L285: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L285: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L698: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-10 00:02:19,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-10 00:02:19,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-10 00:02:19,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-10 00:02:19,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L438: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L653: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L788: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L839: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L608: havoc main_~node6____CPAchecker_TMP_0~1#1;havoc main_~node6__m6~2#1;havoc main_~node5__m5~2#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L608: havoc main_~node6____CPAchecker_TMP_0~1#1;havoc main_~node6__m6~2#1;havoc main_~node5__m5~2#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L608: havoc main_~node6____CPAchecker_TMP_0~1#1;havoc main_~node6__m6~2#1;havoc main_~node5__m5~2#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L542: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-10 00:02:19,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L542: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-10 00:02:19,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L542: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-10 00:02:19,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-10 00:02:19,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-10 00:02:19,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-10 00:02:19,668 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-10 00:02:19,668 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L311: havoc main_~node6____CPAchecker_TMP_0~0#1;havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,669 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L311: havoc main_~node6____CPAchecker_TMP_0~0#1;havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,669 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,669 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,669 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,669 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,671 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,671 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,671 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,672 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,672 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,672 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,672 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,672 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,673 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,673 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,673 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,673 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,673 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,673 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,674 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,674 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,674 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,674 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,674 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,674 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,675 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,675 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,675 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,675 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,675 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,675 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,676 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,677 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,677 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,677 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,677 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:02:19,677 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L231: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,677 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L231: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,677 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-10 00:02:19,678 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L512: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-10 00:02:19,678 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L512: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-10 00:02:19,678 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L512: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-10 00:02:19,679 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L512: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-10 00:02:19,679 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L480: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:02:19,679 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L480: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:02:19,679 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L480: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:02:19,679 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L480: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:02:19,680 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L480: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:02:19,680 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L249: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,680 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L249: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:19,732 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-10 00:02:19,732 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:02:19,756 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:02:19,756 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:02:19,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:02:19 BoogieIcfgContainer [2024-11-10 00:02:19,758 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:02:19,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:02:19,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:02:19,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:02:19,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:02:17" (1/3) ... [2024-11-10 00:02:19,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ecb684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:19, skipping insertion in model container [2024-11-10 00:02:19,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:18" (2/3) ... [2024-11-10 00:02:19,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ecb684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:19, skipping insertion in model container [2024-11-10 00:02:19,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:02:19" (3/3) ... [2024-11-10 00:02:19,768 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-10 00:02:19,787 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:02:19,788 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:02:19,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:02:19,880 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;@27360b3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:02:19,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:02:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 180 states have (on average 1.738888888888889) internal successors, (313), 181 states have internal predecessors, (313), 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) [2024-11-10 00:02:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-10 00:02:19,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:19,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:19,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:19,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1931955780, now seen corresponding path program 1 times [2024-11-10 00:02:19,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:19,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837949043] [2024-11-10 00:02:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:19,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:20,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:20,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837949043] [2024-11-10 00:02:20,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837949043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:20,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:20,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:20,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123452777] [2024-11-10 00:02:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:20,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:20,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:20,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:20,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:20,969 INFO L87 Difference]: Start difference. First operand has 182 states, 180 states have (on average 1.738888888888889) internal successors, (313), 181 states have internal predecessors, (313), 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 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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) [2024-11-10 00:02:21,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:21,573 INFO L93 Difference]: Finished difference Result 1184 states and 1884 transitions. [2024-11-10 00:02:21,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 00:02:21,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 90 [2024-11-10 00:02:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:21,602 INFO L225 Difference]: With dead ends: 1184 [2024-11-10 00:02:21,603 INFO L226 Difference]: Without dead ends: 1084 [2024-11-10 00:02:21,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-10 00:02:21,614 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 1958 mSDsluCounter, 4286 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:21,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 5116 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:02:21,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-11-10 00:02:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 277. [2024-11-10 00:02:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.4456521739130435) internal successors, (399), 276 states have internal predecessors, (399), 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) [2024-11-10 00:02:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 399 transitions. [2024-11-10 00:02:21,700 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 399 transitions. Word has length 90 [2024-11-10 00:02:21,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:21,702 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 399 transitions. [2024-11-10 00:02:21,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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) [2024-11-10 00:02:21,705 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 399 transitions. [2024-11-10 00:02:21,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:02:21,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:21,708 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:21,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:02:21,709 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:21,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash 486773513, now seen corresponding path program 1 times [2024-11-10 00:02:21,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:21,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955955492] [2024-11-10 00:02:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:21,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:22,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:22,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:22,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955955492] [2024-11-10 00:02:22,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955955492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:22,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:22,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:22,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529042976] [2024-11-10 00:02:22,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:22,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:22,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:22,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:22,080 INFO L87 Difference]: Start difference. First operand 277 states and 399 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:22,373 INFO L93 Difference]: Finished difference Result 1295 states and 1985 transitions. [2024-11-10 00:02:22,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:22,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-10 00:02:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:22,379 INFO L225 Difference]: With dead ends: 1295 [2024-11-10 00:02:22,379 INFO L226 Difference]: Without dead ends: 1147 [2024-11-10 00:02:22,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:22,382 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 1403 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:22,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2755 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-11-10 00:02:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 444. [2024-11-10 00:02:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 1.492099322799097) internal successors, (661), 443 states have internal predecessors, (661), 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) [2024-11-10 00:02:22,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 661 transitions. [2024-11-10 00:02:22,422 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 661 transitions. Word has length 92 [2024-11-10 00:02:22,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:22,423 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 661 transitions. [2024-11-10 00:02:22,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:22,424 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 661 transitions. [2024-11-10 00:02:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:02:22,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:22,426 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:22,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:02:22,427 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:22,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:22,428 INFO L85 PathProgramCache]: Analyzing trace with hash 990192096, now seen corresponding path program 1 times [2024-11-10 00:02:22,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:22,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722312124] [2024-11-10 00:02:22,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:22,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:22,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:22,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722312124] [2024-11-10 00:02:22,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722312124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:22,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:22,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:22,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435112560] [2024-11-10 00:02:22,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:22,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:22,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:22,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:22,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:22,727 INFO L87 Difference]: Start difference. First operand 444 states and 661 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:23,006 INFO L93 Difference]: Finished difference Result 1462 states and 2247 transitions. [2024-11-10 00:02:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:23,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-10 00:02:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:23,014 INFO L225 Difference]: With dead ends: 1462 [2024-11-10 00:02:23,014 INFO L226 Difference]: Without dead ends: 1314 [2024-11-10 00:02:23,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:23,019 INFO L432 NwaCegarLoop]: 690 mSDtfsCounter, 1394 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:23,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 2590 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:23,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-10 00:02:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 684. [2024-11-10 00:02:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.5183016105417277) internal successors, (1037), 683 states have internal predecessors, (1037), 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) [2024-11-10 00:02:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1037 transitions. [2024-11-10 00:02:23,071 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1037 transitions. Word has length 92 [2024-11-10 00:02:23,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:23,073 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1037 transitions. [2024-11-10 00:02:23,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:23,073 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1037 transitions. [2024-11-10 00:02:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:02:23,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:23,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:23,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:02:23,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:23,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash -375188727, now seen corresponding path program 1 times [2024-11-10 00:02:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:23,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936574003] [2024-11-10 00:02:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:23,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:23,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:23,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936574003] [2024-11-10 00:02:23,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936574003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:23,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:23,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607295237] [2024-11-10 00:02:23,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:23,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:23,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:23,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:23,331 INFO L87 Difference]: Start difference. First operand 684 states and 1037 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:23,542 INFO L93 Difference]: Finished difference Result 1624 states and 2501 transitions. [2024-11-10 00:02:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:23,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-10 00:02:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:23,548 INFO L225 Difference]: With dead ends: 1624 [2024-11-10 00:02:23,548 INFO L226 Difference]: Without dead ends: 1476 [2024-11-10 00:02:23,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:23,550 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 1606 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:23,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 2003 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-10 00:02:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 846. [2024-11-10 00:02:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 1.527810650887574) internal successors, (1291), 845 states have internal predecessors, (1291), 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) [2024-11-10 00:02:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1291 transitions. [2024-11-10 00:02:23,599 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1291 transitions. Word has length 92 [2024-11-10 00:02:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:23,600 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1291 transitions. [2024-11-10 00:02:23,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1291 transitions. [2024-11-10 00:02:23,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:02:23,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:23,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:23,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 00:02:23,602 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:23,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:23,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2082303223, now seen corresponding path program 1 times [2024-11-10 00:02:23,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:23,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358491453] [2024-11-10 00:02:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:23,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:23,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:23,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358491453] [2024-11-10 00:02:23,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358491453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:23,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:23,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45082423] [2024-11-10 00:02:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:23,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:23,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:23,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:23,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:23,830 INFO L87 Difference]: Start difference. First operand 846 states and 1291 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:24,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:24,033 INFO L93 Difference]: Finished difference Result 1781 states and 2747 transitions. [2024-11-10 00:02:24,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:24,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-10 00:02:24,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:24,040 INFO L225 Difference]: With dead ends: 1781 [2024-11-10 00:02:24,040 INFO L226 Difference]: Without dead ends: 1633 [2024-11-10 00:02:24,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:24,043 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1810 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:24,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 2042 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:24,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-10 00:02:24,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 998. [2024-11-10 00:02:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 997 states have (on average 1.5336008024072216) internal successors, (1529), 997 states have internal predecessors, (1529), 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) [2024-11-10 00:02:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1529 transitions. [2024-11-10 00:02:24,077 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1529 transitions. Word has length 92 [2024-11-10 00:02:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:24,077 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1529 transitions. [2024-11-10 00:02:24,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1529 transitions. [2024-11-10 00:02:24,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:02:24,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:24,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:24,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 00:02:24,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:24,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash -44405664, now seen corresponding path program 1 times [2024-11-10 00:02:24,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:24,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23080561] [2024-11-10 00:02:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:24,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23080561] [2024-11-10 00:02:24,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23080561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:24,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:24,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:24,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318602154] [2024-11-10 00:02:24,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:24,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:24,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:24,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:24,328 INFO L87 Difference]: Start difference. First operand 998 states and 1529 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:24,545 INFO L93 Difference]: Finished difference Result 1928 states and 2977 transitions. [2024-11-10 00:02:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:24,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-10 00:02:24,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:24,553 INFO L225 Difference]: With dead ends: 1928 [2024-11-10 00:02:24,553 INFO L226 Difference]: Without dead ends: 1780 [2024-11-10 00:02:24,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:24,555 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1614 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:24,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 2131 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2024-11-10 00:02:24,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1145. [2024-11-10 00:02:24,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 1144 states have (on average 1.5375874125874125) internal successors, (1759), 1144 states have internal predecessors, (1759), 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) [2024-11-10 00:02:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1759 transitions. [2024-11-10 00:02:24,593 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1759 transitions. Word has length 92 [2024-11-10 00:02:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:24,594 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1759 transitions. [2024-11-10 00:02:24,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1759 transitions. [2024-11-10 00:02:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:02:24,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:24,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:24,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 00:02:24,596 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:24,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:24,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1347571488, now seen corresponding path program 1 times [2024-11-10 00:02:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647303180] [2024-11-10 00:02:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:24,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:24,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:24,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:24,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647303180] [2024-11-10 00:02:24,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647303180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:24,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:24,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:24,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940792816] [2024-11-10 00:02:24,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:24,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:24,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:24,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:24,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:24,834 INFO L87 Difference]: Start difference. First operand 1145 states and 1759 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:25,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:25,048 INFO L93 Difference]: Finished difference Result 2080 states and 3215 transitions. [2024-11-10 00:02:25,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:25,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2024-11-10 00:02:25,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:25,056 INFO L225 Difference]: With dead ends: 2080 [2024-11-10 00:02:25,056 INFO L226 Difference]: Without dead ends: 1932 [2024-11-10 00:02:25,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:25,058 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1680 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:25,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 2634 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2024-11-10 00:02:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1302. [2024-11-10 00:02:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 1.5411222136817833) internal successors, (2005), 1301 states have internal predecessors, (2005), 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) [2024-11-10 00:02:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 2005 transitions. [2024-11-10 00:02:25,094 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 2005 transitions. Word has length 92 [2024-11-10 00:02:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:25,095 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 2005 transitions. [2024-11-10 00:02:25,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-10 00:02:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 2005 transitions. [2024-11-10 00:02:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 00:02:25,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:25,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:25,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:02:25,098 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:25,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash -540318428, now seen corresponding path program 1 times [2024-11-10 00:02:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:25,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194742709] [2024-11-10 00:02:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:25,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:25,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:25,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194742709] [2024-11-10 00:02:25,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194742709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:25,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:25,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:25,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476582272] [2024-11-10 00:02:25,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:25,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:25,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:25,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:25,187 INFO L87 Difference]: Start difference. First operand 1302 states and 2005 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-10 00:02:25,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:25,242 INFO L93 Difference]: Finished difference Result 2401 states and 3725 transitions. [2024-11-10 00:02:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:25,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2024-11-10 00:02:25,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:25,246 INFO L225 Difference]: With dead ends: 2401 [2024-11-10 00:02:25,247 INFO L226 Difference]: Without dead ends: 1304 [2024-11-10 00:02:25,248 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 [2024-11-10 00:02:25,249 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 129 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:25,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 552 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-10 00:02:25,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1302. [2024-11-10 00:02:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 1.5349730976172176) internal successors, (1997), 1301 states have internal predecessors, (1997), 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) [2024-11-10 00:02:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1997 transitions. [2024-11-10 00:02:25,272 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1997 transitions. Word has length 93 [2024-11-10 00:02:25,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:25,273 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1997 transitions. [2024-11-10 00:02:25,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-10 00:02:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1997 transitions. [2024-11-10 00:02:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-10 00:02:25,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:25,274 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:25,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:02:25,275 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:25,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:25,275 INFO L85 PathProgramCache]: Analyzing trace with hash -555529883, now seen corresponding path program 1 times [2024-11-10 00:02:25,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:25,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135720680] [2024-11-10 00:02:25,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:25,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:25,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135720680] [2024-11-10 00:02:25,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135720680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:25,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:25,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:25,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966900260] [2024-11-10 00:02:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:25,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:25,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:25,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:25,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:25,430 INFO L87 Difference]: Start difference. First operand 1302 states and 1997 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-10 00:02:25,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:25,701 INFO L93 Difference]: Finished difference Result 3752 states and 5809 transitions. [2024-11-10 00:02:25,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:25,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 94 [2024-11-10 00:02:25,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:25,710 INFO L225 Difference]: With dead ends: 3752 [2024-11-10 00:02:25,711 INFO L226 Difference]: Without dead ends: 2496 [2024-11-10 00:02:25,714 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 [2024-11-10 00:02:25,716 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 986 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:25,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 221 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:25,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-10 00:02:25,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2494. [2024-11-10 00:02:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.5411151223425592) internal successors, (3842), 2493 states have internal predecessors, (3842), 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) [2024-11-10 00:02:25,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3842 transitions. [2024-11-10 00:02:25,779 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3842 transitions. Word has length 94 [2024-11-10 00:02:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:25,780 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3842 transitions. [2024-11-10 00:02:25,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-10 00:02:25,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3842 transitions. [2024-11-10 00:02:25,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-10 00:02:25,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:25,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:25,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 00:02:25,782 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:25,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:25,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2130438180, now seen corresponding path program 1 times [2024-11-10 00:02:25,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:25,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484908469] [2024-11-10 00:02:25,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:25,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:25,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:25,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484908469] [2024-11-10 00:02:25,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484908469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:25,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:25,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:25,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066793194] [2024-11-10 00:02:25,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:25,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:25,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:25,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:25,920 INFO L87 Difference]: Start difference. First operand 2494 states and 3842 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-10 00:02:26,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:26,075 INFO L93 Difference]: Finished difference Result 4930 states and 7623 transitions. [2024-11-10 00:02:26,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:26,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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 95 [2024-11-10 00:02:26,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:26,084 INFO L225 Difference]: With dead ends: 4930 [2024-11-10 00:02:26,084 INFO L226 Difference]: Without dead ends: 2494 [2024-11-10 00:02:26,088 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 [2024-11-10 00:02:26,089 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 635 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:26,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 160 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-10 00:02:26,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-10 00:02:26,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.52868030485359) internal successors, (3811), 2493 states have internal predecessors, (3811), 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) [2024-11-10 00:02:26,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3811 transitions. [2024-11-10 00:02:26,144 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3811 transitions. Word has length 95 [2024-11-10 00:02:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:26,145 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3811 transitions. [2024-11-10 00:02:26,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-10 00:02:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3811 transitions. [2024-11-10 00:02:26,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-10 00:02:26,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:26,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:26,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 00:02:26,147 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:26,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1309609503, now seen corresponding path program 1 times [2024-11-10 00:02:26,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:26,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217291270] [2024-11-10 00:02:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:26,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:26,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217291270] [2024-11-10 00:02:26,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217291270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:26,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:26,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:26,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457236077] [2024-11-10 00:02:26,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:26,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:26,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:26,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:26,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:26,306 INFO L87 Difference]: Start difference. First operand 2494 states and 3811 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-10 00:02:26,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:26,476 INFO L93 Difference]: Finished difference Result 4926 states and 7557 transitions. [2024-11-10 00:02:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:26,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2024-11-10 00:02:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:26,486 INFO L225 Difference]: With dead ends: 4926 [2024-11-10 00:02:26,486 INFO L226 Difference]: Without dead ends: 2494 [2024-11-10 00:02:26,490 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 [2024-11-10 00:02:26,491 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 617 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:26,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 168 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:26,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-10 00:02:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-10 00:02:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.516245487364621) internal successors, (3780), 2493 states have internal predecessors, (3780), 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) [2024-11-10 00:02:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3780 transitions. [2024-11-10 00:02:26,551 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3780 transitions. Word has length 96 [2024-11-10 00:02:26,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:26,551 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3780 transitions. [2024-11-10 00:02:26,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-10 00:02:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3780 transitions. [2024-11-10 00:02:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-10 00:02:26,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:26,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:26,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 00:02:26,554 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:26,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:26,555 INFO L85 PathProgramCache]: Analyzing trace with hash 987564512, now seen corresponding path program 1 times [2024-11-10 00:02:26,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:26,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549469140] [2024-11-10 00:02:26,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:26,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:26,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:26,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549469140] [2024-11-10 00:02:26,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549469140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:26,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:26,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:26,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818190262] [2024-11-10 00:02:26,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:26,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:26,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:26,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:26,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:26,677 INFO L87 Difference]: Start difference. First operand 2494 states and 3780 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-10 00:02:26,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:26,828 INFO L93 Difference]: Finished difference Result 4938 states and 7509 transitions. [2024-11-10 00:02:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:26,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-11-10 00:02:26,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:26,837 INFO L225 Difference]: With dead ends: 4938 [2024-11-10 00:02:26,837 INFO L226 Difference]: Without dead ends: 2494 [2024-11-10 00:02:26,840 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 [2024-11-10 00:02:26,841 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 645 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:26,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 144 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-10 00:02:26,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-10 00:02:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.503810669875652) internal successors, (3749), 2493 states have internal predecessors, (3749), 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) [2024-11-10 00:02:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3749 transitions. [2024-11-10 00:02:26,897 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3749 transitions. Word has length 97 [2024-11-10 00:02:26,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:26,897 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3749 transitions. [2024-11-10 00:02:26,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-10 00:02:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3749 transitions. [2024-11-10 00:02:26,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:02:26,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:26,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 00:02:26,899 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:26,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1660279845, now seen corresponding path program 1 times [2024-11-10 00:02:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702422760] [2024-11-10 00:02:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:26,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:27,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702422760] [2024-11-10 00:02:27,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702422760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:27,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:27,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412167248] [2024-11-10 00:02:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:27,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:27,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:27,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:27,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:27,048 INFO L87 Difference]: Start difference. First operand 2494 states and 3749 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-10 00:02:27,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:27,213 INFO L93 Difference]: Finished difference Result 4934 states and 7443 transitions. [2024-11-10 00:02:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:27,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 98 [2024-11-10 00:02:27,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:27,224 INFO L225 Difference]: With dead ends: 4934 [2024-11-10 00:02:27,227 INFO L226 Difference]: Without dead ends: 2494 [2024-11-10 00:02:27,232 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 [2024-11-10 00:02:27,233 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 627 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:27,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 152 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-10 00:02:27,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-10 00:02:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4913758523866827) internal successors, (3718), 2493 states have internal predecessors, (3718), 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) [2024-11-10 00:02:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3718 transitions. [2024-11-10 00:02:27,290 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3718 transitions. Word has length 98 [2024-11-10 00:02:27,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:27,290 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3718 transitions. [2024-11-10 00:02:27,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-10 00:02:27,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3718 transitions. [2024-11-10 00:02:27,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-10 00:02:27,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:27,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:27,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 00:02:27,293 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:27,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:27,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2001772572, now seen corresponding path program 1 times [2024-11-10 00:02:27,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:27,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889091832] [2024-11-10 00:02:27,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:27,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:27,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:27,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889091832] [2024-11-10 00:02:27,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889091832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:27,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:27,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:27,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959515426] [2024-11-10 00:02:27,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:27,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:27,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:27,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:27,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:27,422 INFO L87 Difference]: Start difference. First operand 2494 states and 3718 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-10 00:02:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:27,577 INFO L93 Difference]: Finished difference Result 4922 states and 7369 transitions. [2024-11-10 00:02:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:27,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2024-11-10 00:02:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:27,589 INFO L225 Difference]: With dead ends: 4922 [2024-11-10 00:02:27,589 INFO L226 Difference]: Without dead ends: 2494 [2024-11-10 00:02:27,593 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 [2024-11-10 00:02:27,594 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 585 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:27,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 176 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:27,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-10 00:02:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-10 00:02:27,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4789410348977137) internal successors, (3687), 2493 states have internal predecessors, (3687), 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) [2024-11-10 00:02:27,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3687 transitions. [2024-11-10 00:02:27,646 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3687 transitions. Word has length 99 [2024-11-10 00:02:27,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:27,647 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3687 transitions. [2024-11-10 00:02:27,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-10 00:02:27,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3687 transitions. [2024-11-10 00:02:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-10 00:02:27,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:27,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:27,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 00:02:27,649 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:27,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:27,650 INFO L85 PathProgramCache]: Analyzing trace with hash -626595336, now seen corresponding path program 1 times [2024-11-10 00:02:27,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:27,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985643031] [2024-11-10 00:02:27,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:27,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:28,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:28,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985643031] [2024-11-10 00:02:28,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985643031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:28,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:28,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:02:28,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705856696] [2024-11-10 00:02:28,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:28,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:02:28,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:02:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:02:28,047 INFO L87 Difference]: Start difference. First operand 2494 states and 3687 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-10 00:02:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:28,562 INFO L93 Difference]: Finished difference Result 7019 states and 10373 transitions. [2024-11-10 00:02:28,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:02:28,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 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 100 [2024-11-10 00:02:28,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:28,577 INFO L225 Difference]: With dead ends: 7019 [2024-11-10 00:02:28,581 INFO L226 Difference]: Without dead ends: 4814 [2024-11-10 00:02:28,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-10 00:02:28,589 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 900 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:28,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 636 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:02:28,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4814 states. [2024-11-10 00:02:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4814 to 2494. [2024-11-10 00:02:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4737264340152427) internal successors, (3674), 2493 states have internal predecessors, (3674), 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) [2024-11-10 00:02:28,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3674 transitions. [2024-11-10 00:02:28,659 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3674 transitions. Word has length 100 [2024-11-10 00:02:28,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:28,659 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3674 transitions. [2024-11-10 00:02:28,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-10 00:02:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3674 transitions. [2024-11-10 00:02:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-10 00:02:28,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:28,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:28,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 00:02:28,665 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:28,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:28,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1661193096, now seen corresponding path program 1 times [2024-11-10 00:02:28,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:28,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752638187] [2024-11-10 00:02:28,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:28,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:29,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:29,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:29,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752638187] [2024-11-10 00:02:29,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752638187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:29,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:29,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:02:29,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044514743] [2024-11-10 00:02:29,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:29,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 00:02:29,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 00:02:29,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:02:29,269 INFO L87 Difference]: Start difference. First operand 2494 states and 3674 transitions. Second operand has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 13 states have internal predecessors, (100), 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) [2024-11-10 00:02:30,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:30,066 INFO L93 Difference]: Finished difference Result 7287 states and 10704 transitions. [2024-11-10 00:02:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 00:02:30,067 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 13 states have internal predecessors, (100), 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 100 [2024-11-10 00:02:30,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:30,077 INFO L225 Difference]: With dead ends: 7287 [2024-11-10 00:02:30,077 INFO L226 Difference]: Without dead ends: 5039 [2024-11-10 00:02:30,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-10 00:02:30,083 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1483 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:30,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 871 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 00:02:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5039 states. [2024-11-10 00:02:30,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5039 to 2566. [2024-11-10 00:02:30,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.470955165692008) internal successors, (3773), 2565 states have internal predecessors, (3773), 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) [2024-11-10 00:02:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3773 transitions. [2024-11-10 00:02:30,154 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3773 transitions. Word has length 100 [2024-11-10 00:02:30,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:30,154 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3773 transitions. [2024-11-10 00:02:30,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 13 states have internal predecessors, (100), 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) [2024-11-10 00:02:30,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3773 transitions. [2024-11-10 00:02:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-10 00:02:30,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:30,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:30,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 00:02:30,156 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:30,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:30,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1087728015, now seen corresponding path program 1 times [2024-11-10 00:02:30,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360116518] [2024-11-10 00:02:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:30,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:30,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:30,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360116518] [2024-11-10 00:02:30,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360116518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:30,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:30,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:30,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647722418] [2024-11-10 00:02:30,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:30,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:02:30,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:30,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:02:30,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:02:30,458 INFO L87 Difference]: Start difference. First operand 2566 states and 3773 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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) [2024-11-10 00:02:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:30,896 INFO L93 Difference]: Finished difference Result 7087 states and 10479 transitions. [2024-11-10 00:02:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:02:30,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2024-11-10 00:02:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:30,905 INFO L225 Difference]: With dead ends: 7087 [2024-11-10 00:02:30,905 INFO L226 Difference]: Without dead ends: 4771 [2024-11-10 00:02:30,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:02:30,910 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 783 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:30,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 611 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:02:30,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4771 states. [2024-11-10 00:02:30,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4771 to 2566. [2024-11-10 00:02:30,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.4705653021442495) internal successors, (3772), 2565 states have internal predecessors, (3772), 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) [2024-11-10 00:02:30,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3772 transitions. [2024-11-10 00:02:30,970 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3772 transitions. Word has length 100 [2024-11-10 00:02:30,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:30,970 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3772 transitions. [2024-11-10 00:02:30,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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) [2024-11-10 00:02:30,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3772 transitions. [2024-11-10 00:02:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 00:02:30,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:30,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:30,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 00:02:30,973 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:30,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:30,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2118286527, now seen corresponding path program 1 times [2024-11-10 00:02:30,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:30,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649410749] [2024-11-10 00:02:30,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:30,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:31,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:31,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649410749] [2024-11-10 00:02:31,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649410749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:31,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:31,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:02:31,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365575855] [2024-11-10 00:02:31,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:31,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:02:31,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:31,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:02:31,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:02:31,298 INFO L87 Difference]: Start difference. First operand 2566 states and 3772 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 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) [2024-11-10 00:02:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:31,934 INFO L93 Difference]: Finished difference Result 7344 states and 10830 transitions. [2024-11-10 00:02:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:02:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 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 101 [2024-11-10 00:02:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:31,944 INFO L225 Difference]: With dead ends: 7344 [2024-11-10 00:02:31,945 INFO L226 Difference]: Without dead ends: 4976 [2024-11-10 00:02:31,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-10 00:02:31,949 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 718 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:31,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 976 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 00:02:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2024-11-10 00:02:31,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 2566. [2024-11-10 00:02:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.467056530214425) internal successors, (3763), 2565 states have internal predecessors, (3763), 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) [2024-11-10 00:02:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3763 transitions. [2024-11-10 00:02:32,007 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3763 transitions. Word has length 101 [2024-11-10 00:02:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:32,008 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3763 transitions. [2024-11-10 00:02:32,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 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) [2024-11-10 00:02:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3763 transitions. [2024-11-10 00:02:32,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-10 00:02:32,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:32,010 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:32,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 00:02:32,010 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:32,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:32,011 INFO L85 PathProgramCache]: Analyzing trace with hash -826996399, now seen corresponding path program 1 times [2024-11-10 00:02:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:32,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808684675] [2024-11-10 00:02:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:32,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:32,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:32,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808684675] [2024-11-10 00:02:32,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808684675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:32,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:32,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:02:32,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471725653] [2024-11-10 00:02:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:32,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:02:32,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:32,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:02:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:02:32,460 INFO L87 Difference]: Start difference. First operand 2566 states and 3763 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-11-10 00:02:33,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:33,160 INFO L93 Difference]: Finished difference Result 7317 states and 10767 transitions. [2024-11-10 00:02:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:02:33,161 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 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 102 [2024-11-10 00:02:33,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:33,170 INFO L225 Difference]: With dead ends: 7317 [2024-11-10 00:02:33,171 INFO L226 Difference]: Without dead ends: 4994 [2024-11-10 00:02:33,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-10 00:02:33,175 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 926 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:33,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 1166 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 00:02:33,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2024-11-10 00:02:33,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 2566. [2024-11-10 00:02:33,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.4612085769980507) internal successors, (3748), 2565 states have internal predecessors, (3748), 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) [2024-11-10 00:02:33,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3748 transitions. [2024-11-10 00:02:33,230 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3748 transitions. Word has length 102 [2024-11-10 00:02:33,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:33,230 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3748 transitions. [2024-11-10 00:02:33,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 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) [2024-11-10 00:02:33,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3748 transitions. [2024-11-10 00:02:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-10 00:02:33,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:33,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:33,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 00:02:33,233 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:33,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:33,234 INFO L85 PathProgramCache]: Analyzing trace with hash 203250184, now seen corresponding path program 1 times [2024-11-10 00:02:33,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:33,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215347410] [2024-11-10 00:02:33,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:33,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:33,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:33,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215347410] [2024-11-10 00:02:33,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215347410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:33,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:33,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:02:33,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273917442] [2024-11-10 00:02:33,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:33,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:02:33,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:33,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:02:33,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:02:33,637 INFO L87 Difference]: Start difference. First operand 2566 states and 3748 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-10 00:02:34,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:34,327 INFO L93 Difference]: Finished difference Result 7209 states and 10590 transitions. [2024-11-10 00:02:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:02:34,328 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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 103 [2024-11-10 00:02:34,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:34,337 INFO L225 Difference]: With dead ends: 7209 [2024-11-10 00:02:34,337 INFO L226 Difference]: Without dead ends: 4949 [2024-11-10 00:02:34,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-10 00:02:34,342 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 917 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:34,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 978 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 00:02:34,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2024-11-10 00:02:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 2494. [2024-11-10 00:02:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4628961091054953) internal successors, (3647), 2493 states have internal predecessors, (3647), 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) [2024-11-10 00:02:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3647 transitions. [2024-11-10 00:02:34,407 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3647 transitions. Word has length 103 [2024-11-10 00:02:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:34,408 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3647 transitions. [2024-11-10 00:02:34,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-11-10 00:02:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3647 transitions. [2024-11-10 00:02:34,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-10 00:02:34,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:34,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:34,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 00:02:34,411 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:34,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:34,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1743839359, now seen corresponding path program 1 times [2024-11-10 00:02:34,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:34,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994277272] [2024-11-10 00:02:34,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:34,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:34,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:34,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994277272] [2024-11-10 00:02:34,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994277272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:34,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:34,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 00:02:34,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821515930] [2024-11-10 00:02:34,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:34,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 00:02:34,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:34,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 00:02:34,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-10 00:02:34,979 INFO L87 Difference]: Start difference. First operand 2494 states and 3647 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-11-10 00:02:36,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:36,039 INFO L93 Difference]: Finished difference Result 6835 states and 10004 transitions. [2024-11-10 00:02:36,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 00:02:36,040 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 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 103 [2024-11-10 00:02:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:36,052 INFO L225 Difference]: With dead ends: 6835 [2024-11-10 00:02:36,052 INFO L226 Difference]: Without dead ends: 4485 [2024-11-10 00:02:36,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-11-10 00:02:36,059 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1091 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:36,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1591 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 00:02:36,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2024-11-10 00:02:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 2494. [2024-11-10 00:02:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.461692739671079) internal successors, (3644), 2493 states have internal predecessors, (3644), 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) [2024-11-10 00:02:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3644 transitions. [2024-11-10 00:02:36,109 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3644 transitions. Word has length 103 [2024-11-10 00:02:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:36,110 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3644 transitions. [2024-11-10 00:02:36,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-11-10 00:02:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3644 transitions. [2024-11-10 00:02:36,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 00:02:36,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:36,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:36,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 00:02:36,112 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:36,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:36,113 INFO L85 PathProgramCache]: Analyzing trace with hash 932289258, now seen corresponding path program 1 times [2024-11-10 00:02:36,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:36,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125834396] [2024-11-10 00:02:36,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:36,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:36,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:36,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125834396] [2024-11-10 00:02:36,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125834396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:36,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:36,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:02:36,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455622674] [2024-11-10 00:02:36,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:36,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 00:02:36,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:36,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 00:02:36,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:36,922 INFO L87 Difference]: Start difference. First operand 2494 states and 3644 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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) [2024-11-10 00:02:37,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:37,573 INFO L93 Difference]: Finished difference Result 5340 states and 7861 transitions. [2024-11-10 00:02:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:02:37,576 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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 104 [2024-11-10 00:02:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:37,587 INFO L225 Difference]: With dead ends: 5340 [2024-11-10 00:02:37,587 INFO L226 Difference]: Without dead ends: 4750 [2024-11-10 00:02:37,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-10 00:02:37,591 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1159 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:37,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 1378 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:37,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2024-11-10 00:02:37,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 2492. [2024-11-10 00:02:37,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2491 states have (on average 1.4568446407065436) internal successors, (3629), 2491 states have internal predecessors, (3629), 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) [2024-11-10 00:02:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 3629 transitions. [2024-11-10 00:02:37,645 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 3629 transitions. Word has length 104 [2024-11-10 00:02:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:37,645 INFO L471 AbstractCegarLoop]: Abstraction has 2492 states and 3629 transitions. [2024-11-10 00:02:37,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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) [2024-11-10 00:02:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 3629 transitions. [2024-11-10 00:02:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 00:02:37,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:37,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:37,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 00:02:37,647 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:37,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:37,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1862769078, now seen corresponding path program 1 times [2024-11-10 00:02:37,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:37,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527441962] [2024-11-10 00:02:37,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:37,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:38,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:38,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:38,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527441962] [2024-11-10 00:02:38,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527441962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:38,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:38,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:02:38,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715240408] [2024-11-10 00:02:38,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:38,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 00:02:38,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:38,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 00:02:38,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:38,328 INFO L87 Difference]: Start difference. First operand 2492 states and 3629 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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) [2024-11-10 00:02:39,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:39,009 INFO L93 Difference]: Finished difference Result 5406 states and 7931 transitions. [2024-11-10 00:02:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:02:39,010 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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 104 [2024-11-10 00:02:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:39,019 INFO L225 Difference]: With dead ends: 5406 [2024-11-10 00:02:39,020 INFO L226 Difference]: Without dead ends: 4776 [2024-11-10 00:02:39,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-10 00:02:39,022 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1183 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:39,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 1712 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:39,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2024-11-10 00:02:39,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 2470. [2024-11-10 00:02:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2469 states have (on average 1.454840016200891) internal successors, (3592), 2469 states have internal predecessors, (3592), 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) [2024-11-10 00:02:39,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3592 transitions. [2024-11-10 00:02:39,086 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3592 transitions. Word has length 104 [2024-11-10 00:02:39,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:39,086 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3592 transitions. [2024-11-10 00:02:39,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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) [2024-11-10 00:02:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3592 transitions. [2024-11-10 00:02:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 00:02:39,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:39,089 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:39,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 00:02:39,089 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:39,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:39,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1673958450, now seen corresponding path program 1 times [2024-11-10 00:02:39,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:39,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845242780] [2024-11-10 00:02:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:39,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:39,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:39,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845242780] [2024-11-10 00:02:39,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845242780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:39,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:39,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 00:02:39,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463658463] [2024-11-10 00:02:39,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:39,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 00:02:39,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 00:02:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:02:39,852 INFO L87 Difference]: Start difference. First operand 2470 states and 3592 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 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) [2024-11-10 00:02:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:40,718 INFO L93 Difference]: Finished difference Result 9915 states and 14582 transitions. [2024-11-10 00:02:40,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 00:02:40,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 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 104 [2024-11-10 00:02:40,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:40,738 INFO L225 Difference]: With dead ends: 9915 [2024-11-10 00:02:40,738 INFO L226 Difference]: Without dead ends: 9265 [2024-11-10 00:02:40,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-10 00:02:40,744 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 1185 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:40,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 3294 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:02:40,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9265 states. [2024-11-10 00:02:40,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9265 to 2428. [2024-11-10 00:02:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 2427 states have (on average 1.4557066337041615) internal successors, (3533), 2427 states have internal predecessors, (3533), 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) [2024-11-10 00:02:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3533 transitions. [2024-11-10 00:02:40,818 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3533 transitions. Word has length 104 [2024-11-10 00:02:40,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:40,818 INFO L471 AbstractCegarLoop]: Abstraction has 2428 states and 3533 transitions. [2024-11-10 00:02:40,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 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) [2024-11-10 00:02:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3533 transitions. [2024-11-10 00:02:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 00:02:40,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:40,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:40,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 00:02:40,820 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:40,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash -6583686, now seen corresponding path program 1 times [2024-11-10 00:02:40,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:40,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421389844] [2024-11-10 00:02:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:40,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:41,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:41,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421389844] [2024-11-10 00:02:41,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421389844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:41,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:41,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 00:02:41,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711089307] [2024-11-10 00:02:41,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:41,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 00:02:41,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:41,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 00:02:41,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:02:41,479 INFO L87 Difference]: Start difference. First operand 2428 states and 3533 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 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) [2024-11-10 00:02:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:42,210 INFO L93 Difference]: Finished difference Result 5881 states and 8634 transitions. [2024-11-10 00:02:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 00:02:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 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 104 [2024-11-10 00:02:42,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:42,217 INFO L225 Difference]: With dead ends: 5881 [2024-11-10 00:02:42,217 INFO L226 Difference]: Without dead ends: 5226 [2024-11-10 00:02:42,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-10 00:02:42,220 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 1186 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:42,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 3845 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:02:42,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5226 states. [2024-11-10 00:02:42,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5226 to 2365. [2024-11-10 00:02:42,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2364 states have (on average 1.4602368866328257) internal successors, (3452), 2364 states have internal predecessors, (3452), 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) [2024-11-10 00:02:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 3452 transitions. [2024-11-10 00:02:42,281 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 3452 transitions. Word has length 104 [2024-11-10 00:02:42,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:42,281 INFO L471 AbstractCegarLoop]: Abstraction has 2365 states and 3452 transitions. [2024-11-10 00:02:42,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 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) [2024-11-10 00:02:42,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 3452 transitions. [2024-11-10 00:02:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 00:02:42,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:42,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:42,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 00:02:42,283 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:42,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:42,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1980673950, now seen corresponding path program 1 times [2024-11-10 00:02:42,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:42,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796996759] [2024-11-10 00:02:42,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:42,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796996759] [2024-11-10 00:02:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796996759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:42,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:42,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 00:02:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057180710] [2024-11-10 00:02:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:42,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 00:02:42,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:42,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 00:02:42,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-10 00:02:42,860 INFO L87 Difference]: Start difference. First operand 2365 states and 3452 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2024-11-10 00:02:43,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:43,465 INFO L93 Difference]: Finished difference Result 5147 states and 7583 transitions. [2024-11-10 00:02:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:02:43,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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 104 [2024-11-10 00:02:43,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:43,472 INFO L225 Difference]: With dead ends: 5147 [2024-11-10 00:02:43,472 INFO L226 Difference]: Without dead ends: 4529 [2024-11-10 00:02:43,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-10 00:02:43,475 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 694 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:43,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1752 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:43,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2024-11-10 00:02:43,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 2333. [2024-11-10 00:02:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 2332 states have (on average 1.463121783876501) internal successors, (3412), 2332 states have internal predecessors, (3412), 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) [2024-11-10 00:02:43,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3412 transitions. [2024-11-10 00:02:43,522 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3412 transitions. Word has length 104 [2024-11-10 00:02:43,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:43,522 INFO L471 AbstractCegarLoop]: Abstraction has 2333 states and 3412 transitions. [2024-11-10 00:02:43,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2024-11-10 00:02:43,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3412 transitions. [2024-11-10 00:02:43,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-10 00:02:43,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:43,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:43,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 00:02:43,524 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:43,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:43,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1096189819, now seen corresponding path program 1 times [2024-11-10 00:02:43,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:43,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463505269] [2024-11-10 00:02:43,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:43,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:46,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:46,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463505269] [2024-11-10 00:02:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463505269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2024-11-10 00:02:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310746351] [2024-11-10 00:02:46,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:46,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-10 00:02:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:46,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-10 00:02:46,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1285, Unknown=0, NotChecked=0, Total=1406 [2024-11-10 00:02:46,418 INFO L87 Difference]: Start difference. First operand 2333 states and 3412 transitions. Second operand has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 38 states have internal predecessors, (106), 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) [2024-11-10 00:02:50,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:50,608 INFO L93 Difference]: Finished difference Result 2940 states and 4309 transitions. [2024-11-10 00:02:50,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-10 00:02:50,609 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 38 states have internal predecessors, (106), 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 106 [2024-11-10 00:02:50,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:50,611 INFO L225 Difference]: With dead ends: 2940 [2024-11-10 00:02:50,611 INFO L226 Difference]: Without dead ends: 2353 [2024-11-10 00:02:50,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=742, Invalid=4370, Unknown=0, NotChecked=0, Total=5112 [2024-11-10 00:02:50,613 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 608 mSDsluCounter, 3179 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:50,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 3333 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 00:02:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2024-11-10 00:02:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2350. [2024-11-10 00:02:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2349 states have (on average 1.4614729672200937) internal successors, (3433), 2349 states have internal predecessors, (3433), 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) [2024-11-10 00:02:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3433 transitions. [2024-11-10 00:02:50,641 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3433 transitions. Word has length 106 [2024-11-10 00:02:50,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:50,641 INFO L471 AbstractCegarLoop]: Abstraction has 2350 states and 3433 transitions. [2024-11-10 00:02:50,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 38 states have internal predecessors, (106), 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) [2024-11-10 00:02:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3433 transitions. [2024-11-10 00:02:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-10 00:02:50,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:50,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:50,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 00:02:50,643 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:50,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1679631869, now seen corresponding path program 1 times [2024-11-10 00:02:50,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:50,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331739255] [2024-11-10 00:02:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:50,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:50,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331739255] [2024-11-10 00:02:50,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331739255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:50,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:50,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:50,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733632186] [2024-11-10 00:02:50,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:50,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:50,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:50,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:50,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:50,702 INFO L87 Difference]: Start difference. First operand 2350 states and 3433 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-11-10 00:02:50,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:50,739 INFO L93 Difference]: Finished difference Result 6512 states and 9591 transitions. [2024-11-10 00:02:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:50,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2024-11-10 00:02:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:50,746 INFO L225 Difference]: With dead ends: 6512 [2024-11-10 00:02:50,746 INFO L226 Difference]: Without dead ends: 4320 [2024-11-10 00:02:50,749 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 [2024-11-10 00:02:50,749 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 97 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:50,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 520 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4320 states. [2024-11-10 00:02:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4320 to 4258. [2024-11-10 00:02:50,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4258 states, 4257 states have (on average 1.4526661968522434) internal successors, (6184), 4257 states have internal predecessors, (6184), 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) [2024-11-10 00:02:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4258 states to 4258 states and 6184 transitions. [2024-11-10 00:02:50,818 INFO L78 Accepts]: Start accepts. Automaton has 4258 states and 6184 transitions. Word has length 107 [2024-11-10 00:02:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:50,818 INFO L471 AbstractCegarLoop]: Abstraction has 4258 states and 6184 transitions. [2024-11-10 00:02:50,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-11-10 00:02:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 4258 states and 6184 transitions. [2024-11-10 00:02:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-10 00:02:50,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:50,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:50,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 00:02:50,820 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:50,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:50,820 INFO L85 PathProgramCache]: Analyzing trace with hash -695471876, now seen corresponding path program 1 times [2024-11-10 00:02:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895505198] [2024-11-10 00:02:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:51,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:51,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895505198] [2024-11-10 00:02:51,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895505198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:51,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:51,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:02:51,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178275631] [2024-11-10 00:02:51,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:51,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 00:02:51,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:51,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 00:02:51,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:51,454 INFO L87 Difference]: Start difference. First operand 4258 states and 6184 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 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) [2024-11-10 00:02:51,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:51,989 INFO L93 Difference]: Finished difference Result 9474 states and 13824 transitions. [2024-11-10 00:02:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:02:51,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 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 107 [2024-11-10 00:02:51,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:51,998 INFO L225 Difference]: With dead ends: 9474 [2024-11-10 00:02:51,998 INFO L226 Difference]: Without dead ends: 8364 [2024-11-10 00:02:52,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-11-10 00:02:52,003 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 942 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:52,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 1955 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:52,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8364 states. [2024-11-10 00:02:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8364 to 4229. [2024-11-10 00:02:52,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4229 states, 4228 states have (on average 1.4538789025543992) internal successors, (6147), 4228 states have internal predecessors, (6147), 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) [2024-11-10 00:02:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4229 states to 4229 states and 6147 transitions. [2024-11-10 00:02:52,080 INFO L78 Accepts]: Start accepts. Automaton has 4229 states and 6147 transitions. Word has length 107 [2024-11-10 00:02:52,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:52,080 INFO L471 AbstractCegarLoop]: Abstraction has 4229 states and 6147 transitions. [2024-11-10 00:02:52,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 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) [2024-11-10 00:02:52,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4229 states and 6147 transitions. [2024-11-10 00:02:52,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 00:02:52,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:52,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:52,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-10 00:02:52,082 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:52,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:52,083 INFO L85 PathProgramCache]: Analyzing trace with hash 645179498, now seen corresponding path program 1 times [2024-11-10 00:02:52,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:52,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738122445] [2024-11-10 00:02:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:52,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:52,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:52,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:52,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738122445] [2024-11-10 00:02:52,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738122445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:52,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:52,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:52,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262037924] [2024-11-10 00:02:52,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:52,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 00:02:52,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:52,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 00:02:52,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 00:02:52,264 INFO L87 Difference]: Start difference. First operand 4229 states and 6147 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-10 00:02:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:52,316 INFO L93 Difference]: Finished difference Result 10063 states and 14708 transitions. [2024-11-10 00:02:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:52,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 108 [2024-11-10 00:02:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:52,323 INFO L225 Difference]: With dead ends: 10063 [2024-11-10 00:02:52,323 INFO L226 Difference]: Without dead ends: 5963 [2024-11-10 00:02:52,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:52,329 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 109 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:52,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 527 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:52,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2024-11-10 00:02:52,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 5935. [2024-11-10 00:02:52,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 1.4506235254465791) internal successors, (8608), 5934 states have internal predecessors, (8608), 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) [2024-11-10 00:02:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 8608 transitions. [2024-11-10 00:02:52,399 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 8608 transitions. Word has length 108 [2024-11-10 00:02:52,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:52,400 INFO L471 AbstractCegarLoop]: Abstraction has 5935 states and 8608 transitions. [2024-11-10 00:02:52,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2024-11-10 00:02:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 8608 transitions. [2024-11-10 00:02:52,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 00:02:52,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:52,401 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:52,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 00:02:52,401 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:52,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:52,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1120477459, now seen corresponding path program 1 times [2024-11-10 00:02:52,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:52,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821329350] [2024-11-10 00:02:52,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:52,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:52,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:52,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821329350] [2024-11-10 00:02:52,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821329350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:52,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:52,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:02:52,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334900007] [2024-11-10 00:02:52,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:52,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:52,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:52,640 INFO L87 Difference]: Start difference. First operand 5935 states and 8608 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-10 00:02:52,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:52,674 INFO L93 Difference]: Finished difference Result 5993 states and 8679 transitions. [2024-11-10 00:02:52,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:52,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 108 [2024-11-10 00:02:52,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:52,681 INFO L225 Difference]: With dead ends: 5993 [2024-11-10 00:02:52,681 INFO L226 Difference]: Without dead ends: 5991 [2024-11-10 00:02:52,683 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 [2024-11-10 00:02:52,683 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:52,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 861 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2024-11-10 00:02:52,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5991. [2024-11-10 00:02:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5991 states, 5990 states have (on average 1.4414023372287146) internal successors, (8634), 5990 states have internal predecessors, (8634), 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) [2024-11-10 00:02:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5991 states to 5991 states and 8634 transitions. [2024-11-10 00:02:52,748 INFO L78 Accepts]: Start accepts. Automaton has 5991 states and 8634 transitions. Word has length 108 [2024-11-10 00:02:52,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:52,748 INFO L471 AbstractCegarLoop]: Abstraction has 5991 states and 8634 transitions. [2024-11-10 00:02:52,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-10 00:02:52,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5991 states and 8634 transitions. [2024-11-10 00:02:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 00:02:52,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:52,753 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:52,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-10 00:02:52,754 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:52,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:52,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1880451821, now seen corresponding path program 1 times [2024-11-10 00:02:52,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:52,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518351070] [2024-11-10 00:02:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:52,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:52,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:52,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518351070] [2024-11-10 00:02:52,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518351070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:52,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:52,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:02:52,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236106973] [2024-11-10 00:02:52,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:52,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:02:52,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:52,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:02:52,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:02:52,899 INFO L87 Difference]: Start difference. First operand 5991 states and 8634 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:53,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:53,277 INFO L93 Difference]: Finished difference Result 20121 states and 29320 transitions. [2024-11-10 00:02:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:02:53,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-10 00:02:53,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:53,290 INFO L225 Difference]: With dead ends: 20121 [2024-11-10 00:02:53,290 INFO L226 Difference]: Without dead ends: 14259 [2024-11-10 00:02:53,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:53,300 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 961 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:53,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 550 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:02:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14259 states. [2024-11-10 00:02:53,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14259 to 9017. [2024-11-10 00:02:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9017 states, 9016 states have (on average 1.4406610470275067) internal successors, (12989), 9016 states have internal predecessors, (12989), 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) [2024-11-10 00:02:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9017 states to 9017 states and 12989 transitions. [2024-11-10 00:02:53,406 INFO L78 Accepts]: Start accepts. Automaton has 9017 states and 12989 transitions. Word has length 141 [2024-11-10 00:02:53,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:53,407 INFO L471 AbstractCegarLoop]: Abstraction has 9017 states and 12989 transitions. [2024-11-10 00:02:53,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 9017 states and 12989 transitions. [2024-11-10 00:02:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 00:02:53,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:53,410 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:53,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-10 00:02:53,410 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:53,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2018975309, now seen corresponding path program 1 times [2024-11-10 00:02:53,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:53,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669000342] [2024-11-10 00:02:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:53,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:53,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669000342] [2024-11-10 00:02:53,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669000342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:53,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:53,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:02:53,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564569062] [2024-11-10 00:02:53,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:53,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:02:53,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:53,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:02:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:02:53,548 INFO L87 Difference]: Start difference. First operand 9017 states and 12989 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:53,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:53,907 INFO L93 Difference]: Finished difference Result 36221 states and 52737 transitions. [2024-11-10 00:02:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:02:53,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-10 00:02:53,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:53,934 INFO L225 Difference]: With dead ends: 36221 [2024-11-10 00:02:53,935 INFO L226 Difference]: Without dead ends: 27375 [2024-11-10 00:02:53,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:53,949 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1266 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:53,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 430 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:53,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27375 states. [2024-11-10 00:02:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27375 to 19021. [2024-11-10 00:02:54,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 19020 states have (on average 1.4411146161934805) internal successors, (27410), 19020 states have internal predecessors, (27410), 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) [2024-11-10 00:02:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 27410 transitions. [2024-11-10 00:02:54,268 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 27410 transitions. Word has length 141 [2024-11-10 00:02:54,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:54,269 INFO L471 AbstractCegarLoop]: Abstraction has 19021 states and 27410 transitions. [2024-11-10 00:02:54,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:54,269 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 27410 transitions. [2024-11-10 00:02:54,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 00:02:54,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:54,275 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:54,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-10 00:02:54,276 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:54,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:54,276 INFO L85 PathProgramCache]: Analyzing trace with hash -82706477, now seen corresponding path program 1 times [2024-11-10 00:02:54,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:54,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916122322] [2024-11-10 00:02:54,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:54,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916122322] [2024-11-10 00:02:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916122322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:54,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:54,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:02:54,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460983052] [2024-11-10 00:02:54,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:54,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:02:54,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:54,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:02:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:02:54,475 INFO L87 Difference]: Start difference. First operand 19021 states and 27410 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:54,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:54,924 INFO L93 Difference]: Finished difference Result 71105 states and 103192 transitions. [2024-11-10 00:02:54,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:02:54,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-10 00:02:54,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:54,985 INFO L225 Difference]: With dead ends: 71105 [2024-11-10 00:02:54,985 INFO L226 Difference]: Without dead ends: 52255 [2024-11-10 00:02:55,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:55,013 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1181 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:55,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 428 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52255 states. [2024-11-10 00:02:55,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52255 to 40189. [2024-11-10 00:02:55,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40189 states, 40188 states have (on average 1.4401313825022395) internal successors, (57876), 40188 states have internal predecessors, (57876), 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) [2024-11-10 00:02:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40189 states to 40189 states and 57876 transitions. [2024-11-10 00:02:55,612 INFO L78 Accepts]: Start accepts. Automaton has 40189 states and 57876 transitions. Word has length 141 [2024-11-10 00:02:55,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:55,613 INFO L471 AbstractCegarLoop]: Abstraction has 40189 states and 57876 transitions. [2024-11-10 00:02:55,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 40189 states and 57876 transitions. [2024-11-10 00:02:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 00:02:55,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:55,616 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:55,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-10 00:02:55,617 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:55,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1937192813, now seen corresponding path program 1 times [2024-11-10 00:02:55,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:55,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129150212] [2024-11-10 00:02:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:55,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:55,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:55,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129150212] [2024-11-10 00:02:55,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129150212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:55,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:55,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:02:55,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051461481] [2024-11-10 00:02:55,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:55,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:02:55,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:02:55,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:02:55,798 INFO L87 Difference]: Start difference. First operand 40189 states and 57876 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:56,435 INFO L93 Difference]: Finished difference Result 139713 states and 202014 transitions. [2024-11-10 00:02:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:02:56,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-10 00:02:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:56,558 INFO L225 Difference]: With dead ends: 139713 [2024-11-10 00:02:56,558 INFO L226 Difference]: Without dead ends: 99695 [2024-11-10 00:02:56,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:56,609 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1096 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:56,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 426 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 00:02:56,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99695 states. [2024-11-10 00:02:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99695 to 84845. [2024-11-10 00:02:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84845 states, 84844 states have (on average 1.4385931827825185) internal successors, (122056), 84844 states have internal predecessors, (122056), 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) [2024-11-10 00:02:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84845 states to 84845 states and 122056 transitions. [2024-11-10 00:02:58,069 INFO L78 Accepts]: Start accepts. Automaton has 84845 states and 122056 transitions. Word has length 141 [2024-11-10 00:02:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:58,070 INFO L471 AbstractCegarLoop]: Abstraction has 84845 states and 122056 transitions. [2024-11-10 00:02:58,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 84845 states and 122056 transitions. [2024-11-10 00:02:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-10 00:02:58,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:58,076 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:58,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-10 00:02:58,076 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 538545690, now seen corresponding path program 1 times [2024-11-10 00:02:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40705448] [2024-11-10 00:02:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:58,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:58,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40705448] [2024-11-10 00:02:58,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40705448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:58,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:58,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:02:58,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099678342] [2024-11-10 00:02:58,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:58,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:02:58,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:58,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:02:58,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:02:58,449 INFO L87 Difference]: Start difference. First operand 84845 states and 122056 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 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) [2024-11-10 00:02:59,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:59,490 INFO L93 Difference]: Finished difference Result 274609 states and 395482 transitions. [2024-11-10 00:02:59,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:02:59,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 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 142 [2024-11-10 00:02:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:59,949 INFO L225 Difference]: With dead ends: 274609 [2024-11-10 00:02:59,949 INFO L226 Difference]: Without dead ends: 189935 [2024-11-10 00:03:00,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:03:00,024 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1011 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:03:00,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 424 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:03:00,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189935 states. [2024-11-10 00:03:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189935 to 178797. [2024-11-10 00:03:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178797 states, 178796 states have (on average 1.4369001543658695) internal successors, (256912), 178796 states have internal predecessors, (256912), 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) [2024-11-10 00:03:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178797 states to 178797 states and 256912 transitions. [2024-11-10 00:03:02,865 INFO L78 Accepts]: Start accepts. Automaton has 178797 states and 256912 transitions. Word has length 142 [2024-11-10 00:03:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:03:02,865 INFO L471 AbstractCegarLoop]: Abstraction has 178797 states and 256912 transitions. [2024-11-10 00:03:02,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 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) [2024-11-10 00:03:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 178797 states and 256912 transitions. [2024-11-10 00:03:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 00:03:02,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:03:02,873 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:03:02,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-10 00:03:02,874 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:03:02,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:03:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1722237035, now seen corresponding path program 1 times [2024-11-10 00:03:02,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:03:02,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38747652] [2024-11-10 00:03:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:03:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:03:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:03:03,021 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:03:03,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:03:03,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38747652] [2024-11-10 00:03:03,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38747652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:03:03,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:03:03,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:03:03,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857047814] [2024-11-10 00:03:03,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:03:03,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:03:03,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:03:03,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:03:03,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:03:03,025 INFO L87 Difference]: Start difference. First operand 178797 states and 256912 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:03:05,193 INFO L93 Difference]: Finished difference Result 468977 states and 671298 transitions. [2024-11-10 00:03:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:03:05,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-10 00:03:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:03:05,748 INFO L225 Difference]: With dead ends: 468977 [2024-11-10 00:03:05,748 INFO L226 Difference]: Without dead ends: 325967 [2024-11-10 00:03:05,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-10 00:03:05,875 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1013 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 00:03:05,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 384 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 00:03:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325967 states. [2024-11-10 00:03:09,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325967 to 209037. [2024-11-10 00:03:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209037 states, 209036 states have (on average 1.4145697391836813) internal successors, (295696), 209036 states have internal predecessors, (295696), 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) [2024-11-10 00:03:10,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209037 states to 209037 states and 295696 transitions. [2024-11-10 00:03:10,319 INFO L78 Accepts]: Start accepts. Automaton has 209037 states and 295696 transitions. Word has length 143 [2024-11-10 00:03:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:03:10,319 INFO L471 AbstractCegarLoop]: Abstraction has 209037 states and 295696 transitions. [2024-11-10 00:03:10,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 209037 states and 295696 transitions. [2024-11-10 00:03:10,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-10 00:03:10,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:03:10,338 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:03:10,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-10 00:03:10,339 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:03:10,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:03:10,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1271783882, now seen corresponding path program 1 times [2024-11-10 00:03:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:03:10,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554036944] [2024-11-10 00:03:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:03:10,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:03:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:03:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:03:10,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:03:10,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554036944] [2024-11-10 00:03:10,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554036944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:03:10,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:03:10,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:03:10,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777527930] [2024-11-10 00:03:10,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:03:10,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:03:10,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:03:10,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:03:10,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:03:10,670 INFO L87 Difference]: Start difference. First operand 209037 states and 295696 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2024-11-10 00:03:11,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:03:11,800 INFO L93 Difference]: Finished difference Result 370257 states and 523698 transitions. [2024-11-10 00:03:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:03:11,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 144 [2024-11-10 00:03:11,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:03:12,935 INFO L225 Difference]: With dead ends: 370257 [2024-11-10 00:03:12,936 INFO L226 Difference]: Without dead ends: 201837 [2024-11-10 00:03:12,978 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 [2024-11-10 00:03:12,978 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 100 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 480 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 [2024-11-10 00:03:12,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 480 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:03:13,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201837 states. [2024-11-10 00:03:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201837 to 192011. [2024-11-10 00:03:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192011 states, 192010 states have (on average 1.4113223269621373) internal successors, (270988), 192010 states have internal predecessors, (270988), 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) [2024-11-10 00:03:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192011 states to 192011 states and 270988 transitions. [2024-11-10 00:03:16,265 INFO L78 Accepts]: Start accepts. Automaton has 192011 states and 270988 transitions. Word has length 144 [2024-11-10 00:03:16,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:03:16,266 INFO L471 AbstractCegarLoop]: Abstraction has 192011 states and 270988 transitions. [2024-11-10 00:03:16,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2024-11-10 00:03:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand 192011 states and 270988 transitions. [2024-11-10 00:03:16,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-10 00:03:16,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:03:16,294 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:03:16,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-10 00:03:16,294 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:03:16,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:03:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1213508908, now seen corresponding path program 1 times [2024-11-10 00:03:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:03:16,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008940968] [2024-11-10 00:03:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:03:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:03:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:03:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-10 00:03:16,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:03:16,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008940968] [2024-11-10 00:03:16,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008940968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:03:16,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:03:16,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:03:16,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383151102] [2024-11-10 00:03:16,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:03:16,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:03:16,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:03:16,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:03:16,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:03:16,441 INFO L87 Difference]: Start difference. First operand 192011 states and 270988 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:03:18,057 INFO L93 Difference]: Finished difference Result 374063 states and 526878 transitions. [2024-11-10 00:03:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:03:18,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2024-11-10 00:03:18,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:03:18,368 INFO L225 Difference]: With dead ends: 374063 [2024-11-10 00:03:18,368 INFO L226 Difference]: Without dead ends: 182215 [2024-11-10 00:03:18,490 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 [2024-11-10 00:03:18,491 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 96 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 470 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 [2024-11-10 00:03:18,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 470 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:03:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182215 states. [2024-11-10 00:03:21,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182215 to 179321. [2024-11-10 00:03:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179321 states, 179320 states have (on average 1.3999721168860138) internal successors, (251043), 179320 states have internal predecessors, (251043), 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) [2024-11-10 00:03:21,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179321 states to 179321 states and 251043 transitions. [2024-11-10 00:03:21,529 INFO L78 Accepts]: Start accepts. Automaton has 179321 states and 251043 transitions. Word has length 177 [2024-11-10 00:03:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:03:21,530 INFO L471 AbstractCegarLoop]: Abstraction has 179321 states and 251043 transitions. [2024-11-10 00:03:21,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 179321 states and 251043 transitions. [2024-11-10 00:03:21,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-10 00:03:21,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:03:21,550 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:03:21,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-10 00:03:21,550 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:03:21,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:03:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2076173058, now seen corresponding path program 1 times [2024-11-10 00:03:21,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:03:21,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540277582] [2024-11-10 00:03:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:03:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:03:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:03:21,696 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-10 00:03:21,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:03:21,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540277582] [2024-11-10 00:03:21,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540277582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:03:21,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:03:21,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:03:21,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213204404] [2024-11-10 00:03:21,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:03:21,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:03:21,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:03:21,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:03:21,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:03:21,698 INFO L87 Difference]: Start difference. First operand 179321 states and 251043 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)