./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57425e6703a3285008157cd8157da2d7bfae6570ff511478ed083b6b19ed0aed --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:00:05,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:00:05,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:00:05,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:00:05,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:00:05,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:00:05,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:00:05,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:00:05,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:00:05,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:00:05,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:00:05,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:00:05,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:00:05,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:00:05,828 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:00:05,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:00:05,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:00:05,829 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:00:05,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:00:05,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:00:05,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:00:05,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:00:05,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:00:05,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:00:05,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:00:05,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:00:05,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:00:05,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:00:05,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:00:05,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:00:05,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:00:05,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:00:05,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:00:05,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:00:05,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:00:05,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:00:05,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:00:05,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:00:05,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:00:05,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:00:05,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:00:05,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:00:05,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57425e6703a3285008157cd8157da2d7bfae6570ff511478ed083b6b19ed0aed [2024-11-10 00:00:06,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:00:06,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:00:06,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:00:06,162 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:00:06,163 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:00:06,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-10 00:00:07,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:00:07,923 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:00:07,927 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-10 00:00:07,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9de9c3c49/96da6f31b8564d64ac3f483f303121dc/FLAG2550c517e [2024-11-10 00:00:07,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9de9c3c49/96da6f31b8564d64ac3f483f303121dc [2024-11-10 00:00:07,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:00:07,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:00:07,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:00:07,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:00:07,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:00:07,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:00:07" (1/1) ... [2024-11-10 00:00:07,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa09867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:07, skipping insertion in model container [2024-11-10 00:00:07,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:00:07" (1/1) ... [2024-11-10 00:00:08,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:00:08,357 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.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[5771,5784] [2024-11-10 00:00:08,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:00:08,417 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:00:08,476 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.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[5771,5784] [2024-11-10 00:00:08,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:00:08,518 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:00:08,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08 WrapperNode [2024-11-10 00:00:08,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:00:08,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:00:08,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:00:08,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:00:08,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,600 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 457 [2024-11-10 00:00:08,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:00:08,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:00:08,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:00:08,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:00:08,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,664 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 00:00:08,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:00:08,696 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:00:08,696 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:00:08,696 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:00:08,698 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (1/1) ... [2024-11-10 00:00:08,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:00:08,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:00:08,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:00:08,756 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 00:00:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:00:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:00:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:00:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:00:08,922 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:00:08,925 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:00:09,459 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L490: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:09,459 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L400: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:09,459 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L244: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:00:09,460 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L244: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:00:09,460 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L244: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:00:09,460 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:00:09,460 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:00:09,460 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L445: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L536: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L214: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L214: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L214: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:00:09,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L355: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,462 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,463 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,464 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,464 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,464 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,464 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,464 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,465 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,465 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,465 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,465 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,465 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,465 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,466 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,466 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,466 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,466 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,466 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:09,498 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-10 00:00:09,499 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:00:09,517 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:00:09,518 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:00:09,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:00:09 BoogieIcfgContainer [2024-11-10 00:00:09,519 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:00:09,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:00:09,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:00:09,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:00:09,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:00:07" (1/3) ... [2024-11-10 00:00:09,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211215bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:00:09, skipping insertion in model container [2024-11-10 00:00:09,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:08" (2/3) ... [2024-11-10 00:00:09,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@211215bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:00:09, skipping insertion in model container [2024-11-10 00:00:09,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:00:09" (3/3) ... [2024-11-10 00:00:09,526 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-10 00:00:09,541 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:00:09,542 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:00:09,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:00:09,619 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;@5533182f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:00:09,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:00:09,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 100 states have (on average 1.7) internal successors, (170), 101 states have internal predecessors, (170), 0 states have call successors, (0), 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 00:00:09,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:00:09,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:09,640 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] [2024-11-10 00:00:09,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:09,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:09,647 INFO L85 PathProgramCache]: Analyzing trace with hash 65087031, now seen corresponding path program 1 times [2024-11-10 00:00:09,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:09,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139104790] [2024-11-10 00:00:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:09,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:10,162 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 00:00:10,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:10,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139104790] [2024-11-10 00:00:10,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139104790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:10,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:10,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:10,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471343504] [2024-11-10 00:00:10,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:10,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:10,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:10,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:10,202 INFO L87 Difference]: Start difference. First operand has 102 states, 100 states have (on average 1.7) internal successors, (170), 101 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 00:00:10,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:10,265 INFO L93 Difference]: Finished difference Result 228 states and 363 transitions. [2024-11-10 00:00:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:10,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-10 00:00:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:10,281 INFO L225 Difference]: With dead ends: 228 [2024-11-10 00:00:10,281 INFO L226 Difference]: Without dead ends: 154 [2024-11-10 00:00:10,284 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 00:00:10,286 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 118 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:10,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 352 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-10 00:00:10,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2024-11-10 00:00:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4370860927152318) internal successors, (217), 151 states have internal predecessors, (217), 0 states have call successors, (0), 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 00:00:10,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 217 transitions. [2024-11-10 00:00:10,327 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 217 transitions. Word has length 60 [2024-11-10 00:00:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:10,331 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 217 transitions. [2024-11-10 00:00:10,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 00:00:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 217 transitions. [2024-11-10 00:00:10,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 00:00:10,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:10,334 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] [2024-11-10 00:00:10,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:00:10,335 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:10,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:10,335 INFO L85 PathProgramCache]: Analyzing trace with hash -291959792, now seen corresponding path program 1 times [2024-11-10 00:00:10,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:10,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517062665] [2024-11-10 00:00:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:10,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:10,508 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 00:00:10,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:10,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517062665] [2024-11-10 00:00:10,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517062665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:10,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:10,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:10,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746488356] [2024-11-10 00:00:10,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:10,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:10,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:10,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:10,518 INFO L87 Difference]: Start difference. First operand 152 states and 217 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 00:00:10,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:10,559 INFO L93 Difference]: Finished difference Result 372 states and 557 transitions. [2024-11-10 00:00:10,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:10,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-10 00:00:10,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:10,564 INFO L225 Difference]: With dead ends: 372 [2024-11-10 00:00:10,564 INFO L226 Difference]: Without dead ends: 254 [2024-11-10 00:00:10,569 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 00:00:10,570 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 83 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:10,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 304 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:10,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-10 00:00:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 252. [2024-11-10 00:00:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 251 states have (on average 1.4780876494023905) internal successors, (371), 251 states have internal predecessors, (371), 0 states have call successors, (0), 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 00:00:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 371 transitions. [2024-11-10 00:00:10,596 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 371 transitions. Word has length 61 [2024-11-10 00:00:10,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:10,597 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 371 transitions. [2024-11-10 00:00:10,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 00:00:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 371 transitions. [2024-11-10 00:00:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-10 00:00:10,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:10,604 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] [2024-11-10 00:00:10,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:00:10,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:10,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1645713502, now seen corresponding path program 1 times [2024-11-10 00:00:10,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:10,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820420055] [2024-11-10 00:00:10,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:10,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:10,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:10,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820420055] [2024-11-10 00:00:10,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820420055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:10,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:10,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:10,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871862102] [2024-11-10 00:00:10,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:10,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:10,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:10,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:10,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:10,786 INFO L87 Difference]: Start difference. First operand 252 states and 371 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 00:00:10,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:10,822 INFO L93 Difference]: Finished difference Result 656 states and 993 transitions. [2024-11-10 00:00:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:10,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-10 00:00:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:10,826 INFO L225 Difference]: With dead ends: 656 [2024-11-10 00:00:10,829 INFO L226 Difference]: Without dead ends: 438 [2024-11-10 00:00:10,831 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 00:00:10,832 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 78 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:10,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 300 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:10,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-10 00:00:10,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 436. [2024-11-10 00:00:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.4965517241379311) internal successors, (651), 435 states have internal predecessors, (651), 0 states have call successors, (0), 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 00:00:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 651 transitions. [2024-11-10 00:00:10,869 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 651 transitions. Word has length 62 [2024-11-10 00:00:10,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:10,871 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 651 transitions. [2024-11-10 00:00:10,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 00:00:10,871 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 651 transitions. [2024-11-10 00:00:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 00:00:10,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:10,877 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] [2024-11-10 00:00:10,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:00:10,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:10,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:10,878 INFO L85 PathProgramCache]: Analyzing trace with hash 273230687, now seen corresponding path program 1 times [2024-11-10 00:00:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:10,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305528994] [2024-11-10 00:00:10,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:10,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:11,007 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 00:00:11,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:11,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305528994] [2024-11-10 00:00:11,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305528994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:11,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:11,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:11,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278861300] [2024-11-10 00:00:11,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:11,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:11,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:11,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:11,009 INFO L87 Difference]: Start difference. First operand 436 states and 651 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 00:00:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:11,038 INFO L93 Difference]: Finished difference Result 1176 states and 1781 transitions. [2024-11-10 00:00:11,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:11,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-10 00:00:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:11,045 INFO L225 Difference]: With dead ends: 1176 [2024-11-10 00:00:11,045 INFO L226 Difference]: Without dead ends: 774 [2024-11-10 00:00:11,048 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 00:00:11,052 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 73 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:11,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 296 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2024-11-10 00:00:11,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 772. [2024-11-10 00:00:11,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 771 states have (on average 1.4980544747081712) internal successors, (1155), 771 states have internal predecessors, (1155), 0 states have call successors, (0), 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 00:00:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1155 transitions. [2024-11-10 00:00:11,079 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1155 transitions. Word has length 63 [2024-11-10 00:00:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:11,080 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 1155 transitions. [2024-11-10 00:00:11,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 00:00:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1155 transitions. [2024-11-10 00:00:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-10 00:00:11,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:11,082 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] [2024-11-10 00:00:11,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 00:00:11,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:11,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:11,085 INFO L85 PathProgramCache]: Analyzing trace with hash -498651604, now seen corresponding path program 1 times [2024-11-10 00:00:11,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:11,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3317031] [2024-11-10 00:00:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:11,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:11,202 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 00:00:11,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:11,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3317031] [2024-11-10 00:00:11,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3317031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:11,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:11,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:11,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069910753] [2024-11-10 00:00:11,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:11,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:11,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:11,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:11,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:11,209 INFO L87 Difference]: Start difference. First operand 772 states and 1155 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 00:00:11,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:11,242 INFO L93 Difference]: Finished difference Result 2120 states and 3189 transitions. [2024-11-10 00:00:11,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:11,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-10 00:00:11,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:11,250 INFO L225 Difference]: With dead ends: 2120 [2024-11-10 00:00:11,251 INFO L226 Difference]: Without dead ends: 1382 [2024-11-10 00:00:11,252 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 00:00:11,254 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 68 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:11,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 292 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:11,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-11-10 00:00:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2024-11-10 00:00:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4873096446700507) internal successors, (2051), 1379 states have internal predecessors, (2051), 0 states have call successors, (0), 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 00:00:11,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2051 transitions. [2024-11-10 00:00:11,305 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2051 transitions. Word has length 64 [2024-11-10 00:00:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:11,306 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2051 transitions. [2024-11-10 00:00:11,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 00:00:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2051 transitions. [2024-11-10 00:00:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-10 00:00:11,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:11,312 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] [2024-11-10 00:00:11,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 00:00:11,313 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:11,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:11,313 INFO L85 PathProgramCache]: Analyzing trace with hash -787870291, now seen corresponding path program 1 times [2024-11-10 00:00:11,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:11,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743118430] [2024-11-10 00:00:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:11,598 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 00:00:11,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:11,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743118430] [2024-11-10 00:00:11,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743118430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:11,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:11,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:11,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684641662] [2024-11-10 00:00:11,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:11,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:11,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:11,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:11,601 INFO L87 Difference]: Start difference. First operand 1380 states and 2051 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 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 00:00:11,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:11,945 INFO L93 Difference]: Finished difference Result 14840 states and 22221 transitions. [2024-11-10 00:00:11,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 00:00:11,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-10 00:00:11,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:11,997 INFO L225 Difference]: With dead ends: 14840 [2024-11-10 00:00:11,998 INFO L226 Difference]: Without dead ends: 13494 [2024-11-10 00:00:12,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:00:12,011 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 1045 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:12,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 2092 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:00:12,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13494 states. [2024-11-10 00:00:12,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13494 to 2724. [2024-11-10 00:00:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2723 states have (on average 1.4700697759823724) internal successors, (4003), 2723 states have internal predecessors, (4003), 0 states have call successors, (0), 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 00:00:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 4003 transitions. [2024-11-10 00:00:12,178 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 4003 transitions. Word has length 65 [2024-11-10 00:00:12,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:12,179 INFO L471 AbstractCegarLoop]: Abstraction has 2724 states and 4003 transitions. [2024-11-10 00:00:12,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 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 00:00:12,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 4003 transitions. [2024-11-10 00:00:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-10 00:00:12,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:12,180 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] [2024-11-10 00:00:12,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 00:00:12,180 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:12,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1970264537, now seen corresponding path program 1 times [2024-11-10 00:00:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:12,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063117248] [2024-11-10 00:00:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:12,595 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 00:00:12,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063117248] [2024-11-10 00:00:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063117248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227774677] [2024-11-10 00:00:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:12,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:12,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:12,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:12,598 INFO L87 Difference]: Start difference. First operand 2724 states and 4003 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 00:00:12,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:12,822 INFO L93 Difference]: Finished difference Result 5416 states and 7973 transitions. [2024-11-10 00:00:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:12,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-10 00:00:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:12,832 INFO L225 Difference]: With dead ends: 5416 [2024-11-10 00:00:12,832 INFO L226 Difference]: Without dead ends: 2726 [2024-11-10 00:00:12,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:00:12,840 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 272 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:12,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 510 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:12,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2024-11-10 00:00:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2724. [2024-11-10 00:00:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2723 states have (on average 1.458318031582813) internal successors, (3971), 2723 states have internal predecessors, (3971), 0 states have call successors, (0), 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 00:00:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3971 transitions. [2024-11-10 00:00:12,895 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3971 transitions. Word has length 68 [2024-11-10 00:00:12,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:12,895 INFO L471 AbstractCegarLoop]: Abstraction has 2724 states and 3971 transitions. [2024-11-10 00:00:12,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 00:00:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3971 transitions. [2024-11-10 00:00:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-10 00:00:12,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:12,897 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] [2024-11-10 00:00:12,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:00:12,898 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:12,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:12,899 INFO L85 PathProgramCache]: Analyzing trace with hash -707510570, now seen corresponding path program 1 times [2024-11-10 00:00:12,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:12,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038807400] [2024-11-10 00:00:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:12,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:12,992 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 00:00:12,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:12,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038807400] [2024-11-10 00:00:12,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038807400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:12,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:12,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:12,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78550124] [2024-11-10 00:00:12,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:12,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:12,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:12,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:12,994 INFO L87 Difference]: Start difference. First operand 2724 states and 3971 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 00:00:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:13,042 INFO L93 Difference]: Finished difference Result 6683 states and 9768 transitions. [2024-11-10 00:00:13,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:13,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-10 00:00:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:13,060 INFO L225 Difference]: With dead ends: 6683 [2024-11-10 00:00:13,060 INFO L226 Difference]: Without dead ends: 3993 [2024-11-10 00:00:13,065 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 00:00:13,066 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 258 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 00:00:13,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:13,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2024-11-10 00:00:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3991. [2024-11-10 00:00:13,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3990 states have (on average 1.449122807017544) internal successors, (5782), 3990 states have internal predecessors, (5782), 0 states have call successors, (0), 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 00:00:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 5782 transitions. [2024-11-10 00:00:13,174 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 5782 transitions. Word has length 70 [2024-11-10 00:00:13,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:13,175 INFO L471 AbstractCegarLoop]: Abstraction has 3991 states and 5782 transitions. [2024-11-10 00:00:13,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 00:00:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 5782 transitions. [2024-11-10 00:00:13,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 00:00:13,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:13,176 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] [2024-11-10 00:00:13,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:00:13,176 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:13,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1049492232, now seen corresponding path program 1 times [2024-11-10 00:00:13,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:13,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145288777] [2024-11-10 00:00:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:13,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:13,298 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 00:00:13,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:13,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145288777] [2024-11-10 00:00:13,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145288777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:13,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:13,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:00:13,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405665212] [2024-11-10 00:00:13,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:13,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:00:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:13,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:00:13,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:00:13,302 INFO L87 Difference]: Start difference. First operand 3991 states and 5782 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 00:00:13,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:13,414 INFO L93 Difference]: Finished difference Result 7945 states and 11527 transitions. [2024-11-10 00:00:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:00:13,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-10 00:00:13,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:13,428 INFO L225 Difference]: With dead ends: 7945 [2024-11-10 00:00:13,430 INFO L226 Difference]: Without dead ends: 3991 [2024-11-10 00:00:13,437 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 00:00:13,438 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 324 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:13,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 102 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:13,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2024-11-10 00:00:13,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3991. [2024-11-10 00:00:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3990 states have (on average 1.4370927318295739) internal successors, (5734), 3990 states have internal predecessors, (5734), 0 states have call successors, (0), 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 00:00:13,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 5734 transitions. [2024-11-10 00:00:13,522 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 5734 transitions. Word has length 71 [2024-11-10 00:00:13,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:13,522 INFO L471 AbstractCegarLoop]: Abstraction has 3991 states and 5734 transitions. [2024-11-10 00:00:13,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 00:00:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 5734 transitions. [2024-11-10 00:00:13,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 00:00:13,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:13,524 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] [2024-11-10 00:00:13,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 00:00:13,524 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:13,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:13,525 INFO L85 PathProgramCache]: Analyzing trace with hash 822952855, now seen corresponding path program 1 times [2024-11-10 00:00:13,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:13,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929100474] [2024-11-10 00:00:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:13,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:13,882 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 00:00:13,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:13,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929100474] [2024-11-10 00:00:13,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929100474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:13,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:13,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:00:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805523237] [2024-11-10 00:00:13,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:13,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:00:13,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:13,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:00:13,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:00:13,886 INFO L87 Difference]: Start difference. First operand 3991 states and 5734 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 00:00:13,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:13,925 INFO L93 Difference]: Finished difference Result 4249 states and 6055 transitions. [2024-11-10 00:00:13,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:00:13,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-10 00:00:13,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:13,938 INFO L225 Difference]: With dead ends: 4249 [2024-11-10 00:00:13,938 INFO L226 Difference]: Without dead ends: 4247 [2024-11-10 00:00:13,940 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 00:00:13,941 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:13,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 504 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:13,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2024-11-10 00:00:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4247. [2024-11-10 00:00:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4247 states, 4246 states have (on average 1.406971267074894) internal successors, (5974), 4246 states have internal predecessors, (5974), 0 states have call successors, (0), 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 00:00:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 5974 transitions. [2024-11-10 00:00:14,029 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 5974 transitions. Word has length 71 [2024-11-10 00:00:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:14,030 INFO L471 AbstractCegarLoop]: Abstraction has 4247 states and 5974 transitions. [2024-11-10 00:00:14,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 00:00:14,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 5974 transitions. [2024-11-10 00:00:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:14,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:14,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:14,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 00:00:14,034 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:14,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash -951377465, now seen corresponding path program 1 times [2024-11-10 00:00:14,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:14,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115927249] [2024-11-10 00:00:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 00:00:14,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:14,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115927249] [2024-11-10 00:00:14,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115927249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:14,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:14,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:14,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335140040] [2024-11-10 00:00:14,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:14,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:14,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:14,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:14,275 INFO L87 Difference]: Start difference. First operand 4247 states and 5974 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 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 00:00:14,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:14,490 INFO L93 Difference]: Finished difference Result 24899 states and 35028 transitions. [2024-11-10 00:00:14,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:14,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 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 98 [2024-11-10 00:00:14,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:14,538 INFO L225 Difference]: With dead ends: 24899 [2024-11-10 00:00:14,538 INFO L226 Difference]: Without dead ends: 21953 [2024-11-10 00:00:14,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:14,556 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 764 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:14,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1221 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:14,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21953 states. [2024-11-10 00:00:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21953 to 7847. [2024-11-10 00:00:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7847 states, 7846 states have (on average 1.400713739485088) internal successors, (10990), 7846 states have internal predecessors, (10990), 0 states have call successors, (0), 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 00:00:14,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7847 states to 7847 states and 10990 transitions. [2024-11-10 00:00:14,821 INFO L78 Accepts]: Start accepts. Automaton has 7847 states and 10990 transitions. Word has length 98 [2024-11-10 00:00:14,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:14,821 INFO L471 AbstractCegarLoop]: Abstraction has 7847 states and 10990 transitions. [2024-11-10 00:00:14,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 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 00:00:14,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7847 states and 10990 transitions. [2024-11-10 00:00:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:14,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:14,825 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:14,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 00:00:14,826 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:14,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:14,827 INFO L85 PathProgramCache]: Analyzing trace with hash -842219610, now seen corresponding path program 1 times [2024-11-10 00:00:14,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:14,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074822994] [2024-11-10 00:00:14,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:14,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 00:00:15,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:15,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074822994] [2024-11-10 00:00:15,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074822994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:15,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:15,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:15,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547255405] [2024-11-10 00:00:15,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:15,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:15,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:15,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:15,017 INFO L87 Difference]: Start difference. First operand 7847 states and 10990 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 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 00:00:15,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:15,309 INFO L93 Difference]: Finished difference Result 29107 states and 40932 transitions. [2024-11-10 00:00:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:15,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 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 98 [2024-11-10 00:00:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:15,363 INFO L225 Difference]: With dead ends: 29107 [2024-11-10 00:00:15,363 INFO L226 Difference]: Without dead ends: 24897 [2024-11-10 00:00:15,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:15,384 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 761 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:15,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1197 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24897 states. [2024-11-10 00:00:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24897 to 13527. [2024-11-10 00:00:15,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13527 states, 13526 states have (on average 1.398048203460003) internal successors, (18910), 13526 states have internal predecessors, (18910), 0 states have call successors, (0), 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 00:00:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13527 states to 13527 states and 18910 transitions. [2024-11-10 00:00:15,827 INFO L78 Accepts]: Start accepts. Automaton has 13527 states and 18910 transitions. Word has length 98 [2024-11-10 00:00:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:15,828 INFO L471 AbstractCegarLoop]: Abstraction has 13527 states and 18910 transitions. [2024-11-10 00:00:15,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 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 00:00:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 13527 states and 18910 transitions. [2024-11-10 00:00:15,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:15,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:15,834 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:15,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 00:00:15,835 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:15,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:15,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1211153639, now seen corresponding path program 1 times [2024-11-10 00:00:15,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:15,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767925553] [2024-11-10 00:00:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 00:00:16,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:16,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767925553] [2024-11-10 00:00:16,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767925553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:16,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:16,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:16,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098680456] [2024-11-10 00:00:16,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:16,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:16,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:16,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:16,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:16,049 INFO L87 Difference]: Start difference. First operand 13527 states and 18910 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 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 00:00:16,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:16,404 INFO L93 Difference]: Finished difference Result 33315 states and 46820 transitions. [2024-11-10 00:00:16,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:16,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 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 98 [2024-11-10 00:00:16,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:16,464 INFO L225 Difference]: With dead ends: 33315 [2024-11-10 00:00:16,464 INFO L226 Difference]: Without dead ends: 29105 [2024-11-10 00:00:16,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:16,484 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 793 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:16,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1146 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:00:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29105 states. [2024-11-10 00:00:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29105 to 17735. [2024-11-10 00:00:16,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17735 states, 17734 states have (on average 1.3983308898161724) internal successors, (24798), 17734 states have internal predecessors, (24798), 0 states have call successors, (0), 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 00:00:16,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17735 states to 17735 states and 24798 transitions. [2024-11-10 00:00:16,916 INFO L78 Accepts]: Start accepts. Automaton has 17735 states and 24798 transitions. Word has length 98 [2024-11-10 00:00:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:16,917 INFO L471 AbstractCegarLoop]: Abstraction has 17735 states and 24798 transitions. [2024-11-10 00:00:16,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 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 00:00:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 17735 states and 24798 transitions. [2024-11-10 00:00:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:16,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:16,922 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:16,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 00:00:16,922 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:16,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1597920826, now seen corresponding path program 1 times [2024-11-10 00:00:16,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:16,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130613949] [2024-11-10 00:00:16,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 00:00:17,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:17,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130613949] [2024-11-10 00:00:17,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130613949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:17,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:17,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:17,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237475571] [2024-11-10 00:00:17,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:17,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:17,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:17,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:17,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:17,195 INFO L87 Difference]: Start difference. First operand 17735 states and 24798 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 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 00:00:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:17,442 INFO L93 Difference]: Finished difference Result 37523 states and 52708 transitions. [2024-11-10 00:00:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:17,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 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 98 [2024-11-10 00:00:17,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:17,499 INFO L225 Difference]: With dead ends: 37523 [2024-11-10 00:00:17,499 INFO L226 Difference]: Without dead ends: 33313 [2024-11-10 00:00:17,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:17,520 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 850 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:17,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1121 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:17,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33313 states. [2024-11-10 00:00:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33313 to 21943. [2024-11-10 00:00:18,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21943 states, 21942 states have (on average 1.3985051499407528) internal successors, (30686), 21942 states have internal predecessors, (30686), 0 states have call successors, (0), 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 00:00:18,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21943 states to 21943 states and 30686 transitions. [2024-11-10 00:00:18,279 INFO L78 Accepts]: Start accepts. Automaton has 21943 states and 30686 transitions. Word has length 98 [2024-11-10 00:00:18,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:18,279 INFO L471 AbstractCegarLoop]: Abstraction has 21943 states and 30686 transitions. [2024-11-10 00:00:18,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 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 00:00:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 21943 states and 30686 transitions. [2024-11-10 00:00:18,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:18,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:18,285 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:18,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 00:00:18,286 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:18,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1519159289, now seen corresponding path program 1 times [2024-11-10 00:00:18,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:18,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062854487] [2024-11-10 00:00:18,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:18,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 00:00:18,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:18,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062854487] [2024-11-10 00:00:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062854487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:18,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:18,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:18,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842274765] [2024-11-10 00:00:18,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:18,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:18,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:18,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:18,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:18,468 INFO L87 Difference]: Start difference. First operand 21943 states and 30686 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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 00:00:18,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:18,807 INFO L93 Difference]: Finished difference Result 41731 states and 58596 transitions. [2024-11-10 00:00:18,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:18,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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 98 [2024-11-10 00:00:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:18,876 INFO L225 Difference]: With dead ends: 41731 [2024-11-10 00:00:18,876 INFO L226 Difference]: Without dead ends: 37521 [2024-11-10 00:00:18,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:18,895 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 770 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:18,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 1229 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37521 states. [2024-11-10 00:00:19,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37521 to 26151. [2024-11-10 00:00:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26151 states, 26150 states have (on average 1.3986233269598471) internal successors, (36574), 26150 states have internal predecessors, (36574), 0 states have call successors, (0), 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 00:00:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26151 states to 26151 states and 36574 transitions. [2024-11-10 00:00:19,472 INFO L78 Accepts]: Start accepts. Automaton has 26151 states and 36574 transitions. Word has length 98 [2024-11-10 00:00:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:19,473 INFO L471 AbstractCegarLoop]: Abstraction has 26151 states and 36574 transitions. [2024-11-10 00:00:19,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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 00:00:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand 26151 states and 36574 transitions. [2024-11-10 00:00:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-10 00:00:19,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:19,480 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:19,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 00:00:19,480 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:19,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:19,481 INFO L85 PathProgramCache]: Analyzing trace with hash 3064450, now seen corresponding path program 1 times [2024-11-10 00:00:19,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:19,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990145312] [2024-11-10 00:00:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:19,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:20,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:20,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990145312] [2024-11-10 00:00:20,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990145312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:00:20,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810573952] [2024-11-10 00:00:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:20,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:00:20,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:00:20,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:00:20,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 00:00:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:20,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-10 00:00:20,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:00:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:22,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:00:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:22,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810573952] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:00:22,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:00:22,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2024-11-10 00:00:22,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758514488] [2024-11-10 00:00:22,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:00:22,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-10 00:00:22,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:22,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-10 00:00:22,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=781, Unknown=0, NotChecked=0, Total=870 [2024-11-10 00:00:22,976 INFO L87 Difference]: Start difference. First operand 26151 states and 36574 transitions. Second operand has 30 states, 30 states have (on average 8.9) internal successors, (267), 30 states have internal predecessors, (267), 0 states have call successors, (0), 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 00:00:47,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:47,716 INFO L93 Difference]: Finished difference Result 747468 states and 1057614 transitions. [2024-11-10 00:00:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 401 states. [2024-11-10 00:00:47,717 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.9) internal successors, (267), 30 states have internal predecessors, (267), 0 states have call successors, (0), 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 00:00:47,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:49,351 INFO L225 Difference]: With dead ends: 747468 [2024-11-10 00:00:49,351 INFO L226 Difference]: Without dead ends: 721354 [2024-11-10 00:00:49,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 427 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84831 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=19897, Invalid=163715, Unknown=0, NotChecked=0, Total=183612 [2024-11-10 00:00:49,600 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 16959 mSDsluCounter, 3615 mSDsCounter, 0 mSdLazyCounter, 4783 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16959 SdHoareTripleChecker+Valid, 3780 SdHoareTripleChecker+Invalid, 4963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 4783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:49,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16959 Valid, 3780 Invalid, 4963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 4783 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-10 00:00:50,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721354 states. [2024-11-10 00:00:57,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721354 to 309043. [2024-11-10 00:00:57,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309043 states, 309042 states have (on average 1.391830236666861) internal successors, (430134), 309042 states have internal predecessors, (430134), 0 states have call successors, (0), 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 00:00:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309043 states to 309043 states and 430134 transitions. [2024-11-10 00:00:58,979 INFO L78 Accepts]: Start accepts. Automaton has 309043 states and 430134 transitions. Word has length 100 [2024-11-10 00:00:58,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:58,983 INFO L471 AbstractCegarLoop]: Abstraction has 309043 states and 430134 transitions. [2024-11-10 00:00:58,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.9) internal successors, (267), 30 states have internal predecessors, (267), 0 states have call successors, (0), 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 00:00:58,984 INFO L276 IsEmpty]: Start isEmpty. Operand 309043 states and 430134 transitions. [2024-11-10 00:00:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 00:00:59,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:59,015 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:59,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 00:00:59,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 00:00:59,217 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:59,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2026889864, now seen corresponding path program 1 times [2024-11-10 00:00:59,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:59,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133301314] [2024-11-10 00:00:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:59,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:59,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133301314] [2024-11-10 00:00:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133301314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:00:59,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333013132] [2024-11-10 00:00:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:59,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:00:59,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:00:59,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:00:59,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 00:00:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:59,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 00:00:59,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:01:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:00,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:01:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:01,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333013132] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:01:01,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:01:01,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-10 00:01:01,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241387654] [2024-11-10 00:01:01,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:01:01,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 00:01:01,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:01,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 00:01:01,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2024-11-10 00:01:01,170 INFO L87 Difference]: Start difference. First operand 309043 states and 430134 transitions. Second operand has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 25 states have internal predecessors, (287), 0 states have call successors, (0), 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 00:01:15,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:15,576 INFO L93 Difference]: Finished difference Result 2953135 states and 4132613 transitions. [2024-11-10 00:01:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-10 00:01:15,576 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 25 states have internal predecessors, (287), 0 states have call successors, (0), 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 00:01:15,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted.