./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.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.6.ufo.BOUNDED-12.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 b1a54cb791c5af35332ec00d8dfd3a394281252d9141996dd7e5974a534492ee --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:02:32,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:02:32,792 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:02:32,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:02:32,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:02:32,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:02:32,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:02:32,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:02:32,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:02:32,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:02:32,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:02:32,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:02:32,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:02:32,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:02:32,841 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:02:32,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:02:32,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:02:32,842 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:02:32,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:02:32,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:02:32,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:02:32,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:02:32,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:02:32,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:02:32,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:02:32,849 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:02:32,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:02:32,850 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:02:32,850 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:02:32,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:02:32,851 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:02:32,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:02:32,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:02:32,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:02:32,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:02:32,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:02:32,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:02:32,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:02:32,854 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:02:32,854 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:02:32,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:02:32,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:02:32,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a54cb791c5af35332ec00d8dfd3a394281252d9141996dd7e5974a534492ee [2024-11-10 00:02:33,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:02:33,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:02:33,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:02:33,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:02:33,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:02:33,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-10 00:02:34,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:02:34,919 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:02:34,924 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-10 00:02:34,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e857e0897/d0686972892f4855b3af67aaa244f6d9/FLAG73562e6a8 [2024-11-10 00:02:35,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e857e0897/d0686972892f4855b3af67aaa244f6d9 [2024-11-10 00:02:35,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:02:35,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:02:35,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:02:35,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:02:35,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:02:35,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9e572b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35, skipping insertion in model container [2024-11-10 00:02:35,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:02:35,611 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[6694,6707] [2024-11-10 00:02:35,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:02:35,696 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:02:35,764 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[6694,6707] [2024-11-10 00:02:35,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:02:35,817 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:02:35,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35 WrapperNode [2024-11-10 00:02:35,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:02:35,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:02:35,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:02:35,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:02:35,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,873 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 541 [2024-11-10 00:02:35,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:02:35,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:02:35,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:02:35,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:02:35,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,920 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 00:02:35,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,928 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:02:35,940 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:02:35,940 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:02:35,940 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:02:35,941 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (1/1) ... [2024-11-10 00:02:35,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:02:35,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:02:35,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:02:35,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 00:02:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:02:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:02:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:02:36,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:02:36,209 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:02:36,213 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:02:36,776 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L449: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:36,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L584: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:36,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L404: havoc main_~node6____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L291: havoc main_~node6__m6~0#1;havoc main_~node5__m5~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L291: havoc main_~node6__m6~0#1;havoc main_~node5__m5~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L291: havoc main_~node6__m6~0#1;havoc main_~node5__m5~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L539: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L112: havoc main_~init__tmp~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-10 00:02:36,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-10 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L344: 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 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L344: 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 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L344: 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 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L344: 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 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L344: 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 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L494: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L231: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-10 00:02:36,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L231: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-10 00:02:36,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L231: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-10 00:02:36,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L629: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:02:36,833 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-10 00:02:36,835 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:02:36,858 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:02:36,860 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:02:36,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:02:36 BoogieIcfgContainer [2024-11-10 00:02:36,861 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:02:36,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:02:36,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:02:36,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:02:36,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:02:35" (1/3) ... [2024-11-10 00:02:36,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e942bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:36, skipping insertion in model container [2024-11-10 00:02:36,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:02:35" (2/3) ... [2024-11-10 00:02:36,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e942bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:02:36, skipping insertion in model container [2024-11-10 00:02:36,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:02:36" (3/3) ... [2024-11-10 00:02:36,875 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-10 00:02:36,891 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:02:36,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:02:36,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:02:36,966 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;@70794f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:02:36,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:02:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 119 states have (on average 1.7142857142857142) internal successors, (204), 120 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:36,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-10 00:02:36,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:36,981 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:36,981 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:36,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1623482059, now seen corresponding path program 1 times [2024-11-10 00:02:36,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:36,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778337311] [2024-11-10 00:02:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:36,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:37,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:37,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778337311] [2024-11-10 00:02:37,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778337311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:37,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:37,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541647299] [2024-11-10 00:02:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:37,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:37,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:37,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:37,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:37,542 INFO L87 Difference]: Start difference. First operand has 121 states, 119 states have (on average 1.7142857142857142) internal successors, (204), 120 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:37,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:37,632 INFO L93 Difference]: Finished difference Result 267 states and 429 transitions. [2024-11-10 00:02:37,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:37,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-10 00:02:37,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:37,651 INFO L225 Difference]: With dead ends: 267 [2024-11-10 00:02:37,651 INFO L226 Difference]: Without dead ends: 183 [2024-11-10 00:02:37,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:37,656 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 143 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 418 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 00:02:37,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 418 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-10 00:02:37,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2024-11-10 00:02:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.4333333333333333) internal successors, (258), 180 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:37,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 258 transitions. [2024-11-10 00:02:37,723 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 258 transitions. Word has length 73 [2024-11-10 00:02:37,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:37,724 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 258 transitions. [2024-11-10 00:02:37,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:37,724 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 258 transitions. [2024-11-10 00:02:37,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-10 00:02:37,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:37,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:37,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:02:37,729 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:37,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:37,733 INFO L85 PathProgramCache]: Analyzing trace with hash 740852773, now seen corresponding path program 1 times [2024-11-10 00:02:37,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:37,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864799545] [2024-11-10 00:02:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:37,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:37,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:37,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864799545] [2024-11-10 00:02:37,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864799545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:37,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:37,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:37,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897725079] [2024-11-10 00:02:37,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:37,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:37,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:37,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:37,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:37,970 INFO L87 Difference]: Start difference. First operand 181 states and 258 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:38,010 INFO L93 Difference]: Finished difference Result 441 states and 662 transitions. [2024-11-10 00:02:38,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:38,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-10 00:02:38,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:38,014 INFO L225 Difference]: With dead ends: 441 [2024-11-10 00:02:38,014 INFO L226 Difference]: Without dead ends: 303 [2024-11-10 00:02:38,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,020 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 99 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 361 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 00:02:38,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 361 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:38,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-10 00:02:38,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2024-11-10 00:02:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.48) internal successors, (444), 300 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 444 transitions. [2024-11-10 00:02:38,055 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 444 transitions. Word has length 74 [2024-11-10 00:02:38,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:38,056 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 444 transitions. [2024-11-10 00:02:38,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,057 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 444 transitions. [2024-11-10 00:02:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-10 00:02:38,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:38,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:38,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:02:38,060 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:38,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:38,061 INFO L85 PathProgramCache]: Analyzing trace with hash -818058269, now seen corresponding path program 1 times [2024-11-10 00:02:38,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:38,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685831681] [2024-11-10 00:02:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:38,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:38,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:38,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685831681] [2024-11-10 00:02:38,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685831681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:38,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:38,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:38,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531026321] [2024-11-10 00:02:38,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:38,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:38,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:38,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:38,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,231 INFO L87 Difference]: Start difference. First operand 301 states and 444 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:38,261 INFO L93 Difference]: Finished difference Result 785 states and 1194 transitions. [2024-11-10 00:02:38,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:38,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-10 00:02:38,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:38,264 INFO L225 Difference]: With dead ends: 785 [2024-11-10 00:02:38,265 INFO L226 Difference]: Without dead ends: 527 [2024-11-10 00:02:38,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,267 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 94 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 357 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 00:02:38,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 357 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-10 00:02:38,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2024-11-10 00:02:38,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.5038167938931297) internal successors, (788), 524 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 788 transitions. [2024-11-10 00:02:38,291 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 788 transitions. Word has length 75 [2024-11-10 00:02:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:38,292 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 788 transitions. [2024-11-10 00:02:38,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,292 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 788 transitions. [2024-11-10 00:02:38,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-10 00:02:38,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:38,294 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:38,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:02:38,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:38,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:38,295 INFO L85 PathProgramCache]: Analyzing trace with hash -774897104, now seen corresponding path program 1 times [2024-11-10 00:02:38,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:38,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373643703] [2024-11-10 00:02:38,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:38,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:38,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:38,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373643703] [2024-11-10 00:02:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373643703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710288188] [2024-11-10 00:02:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:38,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:38,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:38,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,447 INFO L87 Difference]: Start difference. First operand 525 states and 788 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:38,479 INFO L93 Difference]: Finished difference Result 1425 states and 2174 transitions. [2024-11-10 00:02:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:38,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-10 00:02:38,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:38,487 INFO L225 Difference]: With dead ends: 1425 [2024-11-10 00:02:38,487 INFO L226 Difference]: Without dead ends: 943 [2024-11-10 00:02:38,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,492 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 89 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 353 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 00:02:38,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 353 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:38,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-10 00:02:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 941. [2024-11-10 00:02:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 940 states have (on average 1.5106382978723405) internal successors, (1420), 940 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1420 transitions. [2024-11-10 00:02:38,519 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1420 transitions. Word has length 76 [2024-11-10 00:02:38,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:38,519 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1420 transitions. [2024-11-10 00:02:38,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1420 transitions. [2024-11-10 00:02:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 00:02:38,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:38,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:38,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 00:02:38,521 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:38,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1005834191, now seen corresponding path program 1 times [2024-11-10 00:02:38,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:38,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209480401] [2024-11-10 00:02:38,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:38,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:38,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:38,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209480401] [2024-11-10 00:02:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209480401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:38,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:38,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383620320] [2024-11-10 00:02:38,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:38,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:38,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:38,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:38,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,640 INFO L87 Difference]: Start difference. First operand 941 states and 1420 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:38,683 INFO L93 Difference]: Finished difference Result 2609 states and 3966 transitions. [2024-11-10 00:02:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:38,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-10 00:02:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:38,694 INFO L225 Difference]: With dead ends: 2609 [2024-11-10 00:02:38,694 INFO L226 Difference]: Without dead ends: 1711 [2024-11-10 00:02:38,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,699 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 84 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 349 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 00:02:38,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 349 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2024-11-10 00:02:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1709. [2024-11-10 00:02:38,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1708 states have (on average 1.505854800936768) internal successors, (2572), 1708 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2572 transitions. [2024-11-10 00:02:38,740 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2572 transitions. Word has length 77 [2024-11-10 00:02:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:38,742 INFO L471 AbstractCegarLoop]: Abstraction has 1709 states and 2572 transitions. [2024-11-10 00:02:38,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2572 transitions. [2024-11-10 00:02:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 00:02:38,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:38,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:38,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 00:02:38,744 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:38,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:38,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1494957157, now seen corresponding path program 1 times [2024-11-10 00:02:38,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:38,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961714468] [2024-11-10 00:02:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:38,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:38,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:38,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961714468] [2024-11-10 00:02:38,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961714468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:38,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:38,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:38,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012998329] [2024-11-10 00:02:38,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:38,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:38,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:38,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:38,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,900 INFO L87 Difference]: Start difference. First operand 1709 states and 2572 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:38,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:38,956 INFO L93 Difference]: Finished difference Result 4785 states and 7214 transitions. [2024-11-10 00:02:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 00:02:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:38,969 INFO L225 Difference]: With dead ends: 4785 [2024-11-10 00:02:38,969 INFO L226 Difference]: Without dead ends: 3119 [2024-11-10 00:02:38,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:38,974 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 79 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 345 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 00:02:38,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 345 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2024-11-10 00:02:39,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3117. [2024-11-10 00:02:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 1.4929396662387677) internal successors, (4652), 3116 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 4652 transitions. [2024-11-10 00:02:39,036 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 4652 transitions. Word has length 78 [2024-11-10 00:02:39,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:39,036 INFO L471 AbstractCegarLoop]: Abstraction has 3117 states and 4652 transitions. [2024-11-10 00:02:39,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 4652 transitions. [2024-11-10 00:02:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 00:02:39,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:39,041 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:39,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 00:02:39,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:39,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1909246336, now seen corresponding path program 1 times [2024-11-10 00:02:39,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:39,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029847038] [2024-11-10 00:02:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:39,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:39,298 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 00:02:39,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:39,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029847038] [2024-11-10 00:02:39,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029847038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:39,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:39,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:39,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107443357] [2024-11-10 00:02:39,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:39,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:39,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:39,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:39,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:39,300 INFO L87 Difference]: Start difference. First operand 3117 states and 4652 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:39,830 INFO L93 Difference]: Finished difference Result 40005 states and 59960 transitions. [2024-11-10 00:02:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 00:02:39,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-10 00:02:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:39,950 INFO L225 Difference]: With dead ends: 40005 [2024-11-10 00:02:39,951 INFO L226 Difference]: Without dead ends: 36931 [2024-11-10 00:02:39,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-10 00:02:39,975 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 1540 mSDsluCounter, 2653 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 2805 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:39,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 2805 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36931 states. [2024-11-10 00:02:40,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36931 to 6189. [2024-11-10 00:02:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6189 states, 6188 states have (on average 1.475759534583064) internal successors, (9132), 6188 states have internal predecessors, (9132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6189 states to 6189 states and 9132 transitions. [2024-11-10 00:02:40,448 INFO L78 Accepts]: Start accepts. Automaton has 6189 states and 9132 transitions. Word has length 79 [2024-11-10 00:02:40,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:40,448 INFO L471 AbstractCegarLoop]: Abstraction has 6189 states and 9132 transitions. [2024-11-10 00:02:40,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6189 states and 9132 transitions. [2024-11-10 00:02:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 00:02:40,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:40,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:40,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:02:40,450 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:40,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:40,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1523526919, now seen corresponding path program 1 times [2024-11-10 00:02:40,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:40,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281199557] [2024-11-10 00:02:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:40,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281199557] [2024-11-10 00:02:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281199557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:40,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:40,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102338465] [2024-11-10 00:02:40,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:40,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:40,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:40,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:40,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:40,912 INFO L87 Difference]: Start difference. First operand 6189 states and 9132 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:41,263 INFO L93 Difference]: Finished difference Result 12337 states and 18222 transitions. [2024-11-10 00:02:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:41,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-10 00:02:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:41,276 INFO L225 Difference]: With dead ends: 12337 [2024-11-10 00:02:41,277 INFO L226 Difference]: Without dead ends: 6191 [2024-11-10 00:02:41,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-10 00:02:41,287 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 112 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:41,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 825 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2024-11-10 00:02:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 6189. [2024-11-10 00:02:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6189 states, 6188 states have (on average 1.4654169360051712) internal successors, (9068), 6188 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6189 states to 6189 states and 9068 transitions. [2024-11-10 00:02:41,424 INFO L78 Accepts]: Start accepts. Automaton has 6189 states and 9068 transitions. Word has length 82 [2024-11-10 00:02:41,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:41,425 INFO L471 AbstractCegarLoop]: Abstraction has 6189 states and 9068 transitions. [2024-11-10 00:02:41,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:41,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6189 states and 9068 transitions. [2024-11-10 00:02:41,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-10 00:02:41,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:41,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:41,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:02:41,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:41,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:41,428 INFO L85 PathProgramCache]: Analyzing trace with hash -525631836, now seen corresponding path program 1 times [2024-11-10 00:02:41,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:41,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732860845] [2024-11-10 00:02:41,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:41,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:41,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:41,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732860845] [2024-11-10 00:02:41,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732860845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:41,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:41,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:02:41,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060662618] [2024-11-10 00:02:41,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:41,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:02:41,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:41,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:02:41,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:41,530 INFO L87 Difference]: Start difference. First operand 6189 states and 9068 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:41,603 INFO L93 Difference]: Finished difference Result 15252 states and 22385 transitions. [2024-11-10 00:02:41,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:02:41,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-10 00:02:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:41,620 INFO L225 Difference]: With dead ends: 15252 [2024-11-10 00:02:41,620 INFO L226 Difference]: Without dead ends: 9106 [2024-11-10 00:02:41,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:02:41,629 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 70 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 307 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 00:02:41,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 307 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9106 states. [2024-11-10 00:02:41,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9106 to 9104. [2024-11-10 00:02:41,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9104 states, 9103 states have (on average 1.4569922003735032) internal successors, (13263), 9103 states have internal predecessors, (13263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:41,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9104 states to 9104 states and 13263 transitions. [2024-11-10 00:02:41,794 INFO L78 Accepts]: Start accepts. Automaton has 9104 states and 13263 transitions. Word has length 84 [2024-11-10 00:02:41,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:41,794 INFO L471 AbstractCegarLoop]: Abstraction has 9104 states and 13263 transitions. [2024-11-10 00:02:41,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 9104 states and 13263 transitions. [2024-11-10 00:02:41,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 00:02:41,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:41,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:41,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 00:02:41,796 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:41,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash 293781227, now seen corresponding path program 1 times [2024-11-10 00:02:41,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:41,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190877925] [2024-11-10 00:02:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:41,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:41,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:41,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190877925] [2024-11-10 00:02:41,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190877925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:41,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:41,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:02:41,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504710949] [2024-11-10 00:02:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:41,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:41,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:41,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:41,977 INFO L87 Difference]: Start difference. First operand 9104 states and 13263 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:42,121 INFO L93 Difference]: Finished difference Result 18162 states and 26480 transitions. [2024-11-10 00:02:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:42,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-10 00:02:42,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:42,140 INFO L225 Difference]: With dead ends: 18162 [2024-11-10 00:02:42,141 INFO L226 Difference]: Without dead ends: 9104 [2024-11-10 00:02:42,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:02:42,155 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 351 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:42,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 142 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:42,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9104 states. [2024-11-10 00:02:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9104 to 9104. [2024-11-10 00:02:42,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9104 states, 9103 states have (on average 1.4464462265187301) internal successors, (13167), 9103 states have internal predecessors, (13167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9104 states to 9104 states and 13167 transitions. [2024-11-10 00:02:42,338 INFO L78 Accepts]: Start accepts. Automaton has 9104 states and 13167 transitions. Word has length 85 [2024-11-10 00:02:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:42,339 INFO L471 AbstractCegarLoop]: Abstraction has 9104 states and 13167 transitions. [2024-11-10 00:02:42,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:42,339 INFO L276 IsEmpty]: Start isEmpty. Operand 9104 states and 13167 transitions. [2024-11-10 00:02:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 00:02:42,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:42,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:42,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 00:02:42,340 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:42,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:42,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1386145866, now seen corresponding path program 1 times [2024-11-10 00:02:42,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:42,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931749438] [2024-11-10 00:02:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:42,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:42,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:42,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931749438] [2024-11-10 00:02:42,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931749438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:42,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:42,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:02:42,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589826749] [2024-11-10 00:02:42,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:42,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:02:42,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:02:42,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:42,705 INFO L87 Difference]: Start difference. First operand 9104 states and 13167 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:42,761 INFO L93 Difference]: Finished difference Result 9618 states and 13808 transitions. [2024-11-10 00:02:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:02:42,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-10 00:02:42,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:42,782 INFO L225 Difference]: With dead ends: 9618 [2024-11-10 00:02:42,782 INFO L226 Difference]: Without dead ends: 9616 [2024-11-10 00:02:42,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:02:42,788 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 604 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 00:02:42,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 604 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:02:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9616 states. [2024-11-10 00:02:42,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9616 to 9616. [2024-11-10 00:02:42,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9616 states, 9615 states have (on average 1.4193447737909517) internal successors, (13647), 9615 states have internal predecessors, (13647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:42,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9616 states to 9616 states and 13647 transitions. [2024-11-10 00:02:42,988 INFO L78 Accepts]: Start accepts. Automaton has 9616 states and 13647 transitions. Word has length 85 [2024-11-10 00:02:42,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:42,989 INFO L471 AbstractCegarLoop]: Abstraction has 9616 states and 13647 transitions. [2024-11-10 00:02:42,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:42,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9616 states and 13647 transitions. [2024-11-10 00:02:42,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 00:02:42,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:42,994 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:42,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 00:02:42,995 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:42,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:42,995 INFO L85 PathProgramCache]: Analyzing trace with hash -709393133, now seen corresponding path program 1 times [2024-11-10 00:02:42,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:42,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283200615] [2024-11-10 00:02:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:42,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 00:02:43,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:43,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283200615] [2024-11-10 00:02:43,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283200615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:43,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:43,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:43,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328320840] [2024-11-10 00:02:43,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:43,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:43,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:43,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:43,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:43,287 INFO L87 Difference]: Start difference. First operand 9616 states and 13647 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:43,608 INFO L93 Difference]: Finished difference Result 68958 states and 97830 transitions. [2024-11-10 00:02:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-10 00:02:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:43,727 INFO L225 Difference]: With dead ends: 68958 [2024-11-10 00:02:43,727 INFO L226 Difference]: Without dead ends: 59388 [2024-11-10 00:02:43,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:43,762 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 1152 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:43,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 1676 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:43,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59388 states. [2024-11-10 00:02:44,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59388 to 19184. [2024-11-10 00:02:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19184 states, 19183 states have (on average 1.415367773549497) internal successors, (27151), 19183 states have internal predecessors, (27151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:44,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19184 states to 19184 states and 27151 transitions. [2024-11-10 00:02:44,386 INFO L78 Accepts]: Start accepts. Automaton has 19184 states and 27151 transitions. Word has length 116 [2024-11-10 00:02:44,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:44,386 INFO L471 AbstractCegarLoop]: Abstraction has 19184 states and 27151 transitions. [2024-11-10 00:02:44,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:44,387 INFO L276 IsEmpty]: Start isEmpty. Operand 19184 states and 27151 transitions. [2024-11-10 00:02:44,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 00:02:44,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:44,392 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:44,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 00:02:44,392 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:44,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:44,392 INFO L85 PathProgramCache]: Analyzing trace with hash -600235278, now seen corresponding path program 1 times [2024-11-10 00:02:44,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:44,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061686738] [2024-11-10 00:02:44,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:44,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 00:02:44,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:44,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061686738] [2024-11-10 00:02:44,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061686738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:44,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:44,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:44,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927264528] [2024-11-10 00:02:44,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:44,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:44,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:44,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:44,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:44,670 INFO L87 Difference]: Start difference. First operand 19184 states and 27151 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:45,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:45,046 INFO L93 Difference]: Finished difference Result 78526 states and 111334 transitions. [2024-11-10 00:02:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:45,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-10 00:02:45,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:45,316 INFO L225 Difference]: With dead ends: 78526 [2024-11-10 00:02:45,317 INFO L226 Difference]: Without dead ends: 68956 [2024-11-10 00:02:45,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:45,349 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 1180 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:45,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1558 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:45,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68956 states. [2024-11-10 00:02:46,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68956 to 33584. [2024-11-10 00:02:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33584 states, 33583 states have (on average 1.4102075454843224) internal successors, (47359), 33583 states have internal predecessors, (47359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33584 states to 33584 states and 47359 transitions. [2024-11-10 00:02:46,270 INFO L78 Accepts]: Start accepts. Automaton has 33584 states and 47359 transitions. Word has length 116 [2024-11-10 00:02:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:46,271 INFO L471 AbstractCegarLoop]: Abstraction has 33584 states and 47359 transitions. [2024-11-10 00:02:46,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 33584 states and 47359 transitions. [2024-11-10 00:02:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 00:02:46,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:46,279 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:46,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 00:02:46,279 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:46,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:46,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1453137971, now seen corresponding path program 1 times [2024-11-10 00:02:46,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:46,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115642411] [2024-11-10 00:02:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:46,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 00:02:46,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:46,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115642411] [2024-11-10 00:02:46,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115642411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:46,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:46,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966429947] [2024-11-10 00:02:46,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:46,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:46,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:46,648 INFO L87 Difference]: Start difference. First operand 33584 states and 47359 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:47,080 INFO L93 Difference]: Finished difference Result 88094 states and 124838 transitions. [2024-11-10 00:02:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:47,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-10 00:02:47,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:47,218 INFO L225 Difference]: With dead ends: 88094 [2024-11-10 00:02:47,219 INFO L226 Difference]: Without dead ends: 78524 [2024-11-10 00:02:47,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:47,258 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 1238 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:47,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1484 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:02:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78524 states. [2024-11-10 00:02:48,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78524 to 43152. [2024-11-10 00:02:48,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43152 states, 43151 states have (on average 1.4104655743783459) internal successors, (60863), 43151 states have internal predecessors, (60863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43152 states to 43152 states and 60863 transitions. [2024-11-10 00:02:48,402 INFO L78 Accepts]: Start accepts. Automaton has 43152 states and 60863 transitions. Word has length 116 [2024-11-10 00:02:48,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:48,402 INFO L471 AbstractCegarLoop]: Abstraction has 43152 states and 60863 transitions. [2024-11-10 00:02:48,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:48,403 INFO L276 IsEmpty]: Start isEmpty. Operand 43152 states and 60863 transitions. [2024-11-10 00:02:48,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 00:02:48,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:48,411 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:48,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 00:02:48,412 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:48,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:48,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1355936494, now seen corresponding path program 1 times [2024-11-10 00:02:48,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:48,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585562851] [2024-11-10 00:02:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:48,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:48,774 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 00:02:48,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:48,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585562851] [2024-11-10 00:02:48,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585562851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:48,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:48,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:48,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068538688] [2024-11-10 00:02:48,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:48,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:48,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:48,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:48,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:48,777 INFO L87 Difference]: Start difference. First operand 43152 states and 60863 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:49,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:49,332 INFO L93 Difference]: Finished difference Result 97662 states and 138342 transitions. [2024-11-10 00:02:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:49,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-10 00:02:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:49,500 INFO L225 Difference]: With dead ends: 97662 [2024-11-10 00:02:49,500 INFO L226 Difference]: Without dead ends: 88092 [2024-11-10 00:02:49,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:49,538 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 1307 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:49,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1504 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:49,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88092 states. [2024-11-10 00:02:50,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88092 to 52720. [2024-11-10 00:02:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52720 states, 52719 states have (on average 1.4106299436635747) internal successors, (74367), 52719 states have internal predecessors, (74367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:50,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52720 states to 52720 states and 74367 transitions. [2024-11-10 00:02:50,583 INFO L78 Accepts]: Start accepts. Automaton has 52720 states and 74367 transitions. Word has length 116 [2024-11-10 00:02:50,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:50,584 INFO L471 AbstractCegarLoop]: Abstraction has 52720 states and 74367 transitions. [2024-11-10 00:02:50,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand 52720 states and 74367 transitions. [2024-11-10 00:02:50,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 00:02:50,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:50,592 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:50,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 00:02:50,592 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:50,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:50,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1277174957, now seen corresponding path program 1 times [2024-11-10 00:02:50,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:50,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253742704] [2024-11-10 00:02:50,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:50,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 00:02:50,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:50,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253742704] [2024-11-10 00:02:50,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253742704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:50,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:50,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629154679] [2024-11-10 00:02:50,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:50,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:50,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:50,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:50,803 INFO L87 Difference]: Start difference. First operand 52720 states and 74367 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:51,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:51,557 INFO L93 Difference]: Finished difference Result 107230 states and 151846 transitions. [2024-11-10 00:02:51,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:51,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-10 00:02:51,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:51,726 INFO L225 Difference]: With dead ends: 107230 [2024-11-10 00:02:51,727 INFO L226 Difference]: Without dead ends: 97660 [2024-11-10 00:02:51,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:51,770 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 1160 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:51,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 1678 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:51,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97660 states. [2024-11-10 00:02:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97660 to 62288. [2024-11-10 00:02:53,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62288 states, 62287 states have (on average 1.4107438149212517) internal successors, (87871), 62287 states have internal predecessors, (87871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62288 states to 62288 states and 87871 transitions. [2024-11-10 00:02:53,296 INFO L78 Accepts]: Start accepts. Automaton has 62288 states and 87871 transitions. Word has length 116 [2024-11-10 00:02:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:53,296 INFO L471 AbstractCegarLoop]: Abstraction has 62288 states and 87871 transitions. [2024-11-10 00:02:53,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 62288 states and 87871 transitions. [2024-11-10 00:02:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 00:02:53,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:53,305 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:53,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 00:02:53,305 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:53,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash 658528466, now seen corresponding path program 1 times [2024-11-10 00:02:53,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:53,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349732865] [2024-11-10 00:02:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:53,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:53,493 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 00:02:53,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:53,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349732865] [2024-11-10 00:02:53,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349732865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:02:53,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:02:53,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:02:53,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519025125] [2024-11-10 00:02:53,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:02:53,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:02:53,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:53,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:02:53,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:02:53,496 INFO L87 Difference]: Start difference. First operand 62288 states and 87871 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:53,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:02:53,975 INFO L93 Difference]: Finished difference Result 110974 states and 157094 transitions. [2024-11-10 00:02:53,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:02:53,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-10 00:02:53,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:02:54,122 INFO L225 Difference]: With dead ends: 110974 [2024-11-10 00:02:54,122 INFO L226 Difference]: Without dead ends: 104316 [2024-11-10 00:02:54,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:02:54,159 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 1139 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:02:54,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1982 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:02:54,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104316 states. [2024-11-10 00:02:55,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104316 to 68944. [2024-11-10 00:02:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68944 states, 68943 states have (on average 1.411006193522185) internal successors, (97279), 68943 states have internal predecessors, (97279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68944 states to 68944 states and 97279 transitions. [2024-11-10 00:02:55,479 INFO L78 Accepts]: Start accepts. Automaton has 68944 states and 97279 transitions. Word has length 116 [2024-11-10 00:02:55,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:02:55,479 INFO L471 AbstractCegarLoop]: Abstraction has 68944 states and 97279 transitions. [2024-11-10 00:02:55,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:02:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand 68944 states and 97279 transitions. [2024-11-10 00:02:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-10 00:02:55,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:02:55,488 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:02:55,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 00:02:55,488 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:02:55,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:02:55,489 INFO L85 PathProgramCache]: Analyzing trace with hash 621773550, now seen corresponding path program 1 times [2024-11-10 00:02:55,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:02:55,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110493455] [2024-11-10 00:02:55,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:55,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:02:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:56,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:02:56,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110493455] [2024-11-10 00:02:56,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110493455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:02:56,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76379181] [2024-11-10 00:02:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:02:56,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:02:56,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:02:56,176 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 00:02:56,178 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 00:02:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:02:56,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 00:02:56,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:02:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:57,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:02:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:02:58,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76379181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:02:58,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:02:58,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 29 [2024-11-10 00:02:58,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365655642] [2024-11-10 00:02:58,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:02:58,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-10 00:02:58,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:02:58,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-10 00:02:58,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2024-11-10 00:02:58,978 INFO L87 Difference]: Start difference. First operand 68944 states and 97279 transitions. Second operand has 30 states, 30 states have (on average 10.6) internal successors, (318), 29 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:04,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:03:04,896 INFO L93 Difference]: Finished difference Result 550610 states and 765880 transitions. [2024-11-10 00:03:04,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-10 00:03:04,896 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.6) internal successors, (318), 29 states have internal predecessors, (318), 0 states have call successors, (0), 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 118 [2024-11-10 00:03:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:03:05,715 INFO L225 Difference]: With dead ends: 550610 [2024-11-10 00:03:05,715 INFO L226 Difference]: Without dead ends: 481712 [2024-11-10 00:03:05,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5792 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2910, Invalid=13860, Unknown=0, NotChecked=0, Total=16770 [2024-11-10 00:03:05,853 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 3786 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3786 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:03:05,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3786 Valid, 1926 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-10 00:03:06,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481712 states. [2024-11-10 00:03:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481712 to 343088. [2024-11-10 00:03:11,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343088 states, 343087 states have (on average 1.3904548991946648) internal successors, (477047), 343087 states have internal predecessors, (477047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343088 states to 343088 states and 477047 transitions. [2024-11-10 00:03:13,358 INFO L78 Accepts]: Start accepts. Automaton has 343088 states and 477047 transitions. Word has length 118 [2024-11-10 00:03:13,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:03:13,359 INFO L471 AbstractCegarLoop]: Abstraction has 343088 states and 477047 transitions. [2024-11-10 00:03:13,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.6) internal successors, (318), 29 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 343088 states and 477047 transitions. [2024-11-10 00:03:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-10 00:03:13,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:03:13,385 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:03:13,435 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 00:03:13,586 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,SelfDestructingSolverStorable17 [2024-11-10 00:03:13,587 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:03:13,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:03:13,587 INFO L85 PathProgramCache]: Analyzing trace with hash 257497934, now seen corresponding path program 1 times [2024-11-10 00:03:13,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:03:13,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380658205] [2024-11-10 00:03:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:03:13,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:03:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:03:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:03:14,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:03:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380658205] [2024-11-10 00:03:14,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380658205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:03:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414475022] [2024-11-10 00:03:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:03:14,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:03:14,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:03:14,213 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 00:03:14,214 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 00:03:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:03:14,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 00:03:14,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:03:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:03:15,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:03:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:03:16,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414475022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:03:16,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:03:16,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 29 [2024-11-10 00:03:16,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254598597] [2024-11-10 00:03:16,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:03:16,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-10 00:03:16,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:03:16,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-10 00:03:16,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2024-11-10 00:03:16,109 INFO L87 Difference]: Start difference. First operand 343088 states and 477047 transitions. Second operand has 30 states, 30 states have (on average 10.733333333333333) internal successors, (322), 29 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:03:34,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:03:34,820 INFO L93 Difference]: Finished difference Result 3570684 states and 4934388 transitions. [2024-11-10 00:03:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-11-10 00:03:34,821 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.733333333333333) internal successors, (322), 29 states have internal predecessors, (322), 0 states have call successors, (0), 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 118 [2024-11-10 00:03:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted.