./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a1d1149f676bf63a3b420effefd0eff28b85036d8f2ab9f39599a7a739fe76d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:55:52,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:55:52,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:55:52,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:55:52,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:55:52,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:55:52,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:55:52,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:55:52,136 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:55:52,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:55:52,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:55:52,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:55:52,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:55:52,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:55:52,140 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:55:52,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:55:52,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:55:52,141 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:55:52,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:55:52,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:55:52,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:55:52,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:55:52,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:55:52,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:55:52,147 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:55:52,147 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:55:52,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:55:52,147 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:55:52,148 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:55:52,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:55:52,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:55:52,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:55:52,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:55:52,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:55:52,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:55:52,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:55:52,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:55:52,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:55:52,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:55:52,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:55:52,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:55:52,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:55:52,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a1d1149f676bf63a3b420effefd0eff28b85036d8f2ab9f39599a7a739fe76d [2024-11-09 23:55:52,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:55:52,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:55:52,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:55:52,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:55:52,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:55:52,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-09 23:55:53,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:55:54,079 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:55:54,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-09 23:55:54,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c7d6441b/d53181b25c9e446e8233861a91b4b282/FLAGa0388ac13 [2024-11-09 23:55:54,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c7d6441b/d53181b25c9e446e8233861a91b4b282 [2024-11-09 23:55:54,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:55:54,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:55:54,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:55:54,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:55:54,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:55:54,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149991e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54, skipping insertion in model container [2024-11-09 23:55:54,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:55:54,467 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2024-11-09 23:55:54,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:55:54,592 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:55:54,636 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2024-11-09 23:55:54,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:55:54,702 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:55:54,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54 WrapperNode [2024-11-09 23:55:54,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:55:54,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:55:54,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:55:54,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:55:54,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,788 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1049 [2024-11-09 23:55:54,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:55:54,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:55:54,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:55:54,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:55:54,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,830 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:55:54,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,845 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:55:54,873 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:55:54,873 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:55:54,873 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:55:54,874 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (1/1) ... [2024-11-09 23:55:54,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:55:54,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:55:54,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:55:54,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:55:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:55:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:55:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:55:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:55:55,110 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:55:55,113 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:55:56,093 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,093 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,094 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L831: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-09 23:55:56,094 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1493: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-09 23:55:56,094 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1361: havoc main_~node6____CPAchecker_TMP_1~1#1; [2024-11-09 23:55:56,094 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L272: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,094 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L272: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L538: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L538: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L538: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1004: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L773: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1; [2024-11-09 23:55:56,095 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L444: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L444: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L444: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L444: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:55:56,096 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L444: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L345: havoc main_~node6____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L611: havoc main_~node5__m5~2#1;havoc main_~node4__m4~2#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L611: havoc main_~node5__m5~2#1;havoc main_~node4__m4~2#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L611: havoc main_~node5__m5~2#1;havoc main_~node4__m4~2#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L611: havoc main_~node5__m5~2#1;havoc main_~node4__m4~2#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L314: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L314: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1537: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-09 23:55:56,097 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1405: havoc main_~node5____CPAchecker_TMP_1~1#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L251: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L251: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L945: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L387: 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; [2024-11-09 23:55:56,098 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L387: 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; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1147: havoc main_~node6____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L917: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L687: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1581: havoc main_~node1____CPAchecker_TMP_1~1#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1449: havoc main_~node4____CPAchecker_TMP_1~1#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1119: havoc main_~node6____CPAchecker_TMP_0~1#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-09 23:55:56,099 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,100 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,101 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,103 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,103 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,104 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,104 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,104 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,104 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,104 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,105 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:56,106 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L859: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:56,172 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-09 23:55:56,173 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:55:56,195 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:55:56,195 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:55:56,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:55:56 BoogieIcfgContainer [2024-11-09 23:55:56,196 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:55:56,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:55:56,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:55:56,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:55:56,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:55:54" (1/3) ... [2024-11-09 23:55:56,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365ca507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:55:56, skipping insertion in model container [2024-11-09 23:55:56,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:54" (2/3) ... [2024-11-09 23:55:56,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365ca507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:55:56, skipping insertion in model container [2024-11-09 23:55:56,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:55:56" (3/3) ... [2024-11-09 23:55:56,208 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-09 23:55:56,221 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:55:56,221 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:55:56,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:55:56,293 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;@1f7baaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:55:56,293 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:55:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 272 states, 270 states have (on average 1.6888888888888889) internal successors, (456), 271 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 23:55:56,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:56,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:56,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:56,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:56,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1638647962, now seen corresponding path program 1 times [2024-11-09 23:55:56,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:56,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843053269] [2024-11-09 23:55:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:57,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:57,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843053269] [2024-11-09 23:55:57,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843053269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:57,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:57,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:55:57,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647731924] [2024-11-09 23:55:57,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:57,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:55:57,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:57,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:55:57,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:55:57,225 INFO L87 Difference]: Start difference. First operand has 272 states, 270 states have (on average 1.6888888888888889) internal successors, (456), 271 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:57,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:57,667 INFO L93 Difference]: Finished difference Result 1241 states and 1965 transitions. [2024-11-09 23:55:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:55:57,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-09 23:55:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:57,690 INFO L225 Difference]: With dead ends: 1241 [2024-11-09 23:55:57,691 INFO L226 Difference]: Without dead ends: 1092 [2024-11-09 23:55:57,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:55:57,703 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 3454 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3454 SdHoareTripleChecker+Valid, 3995 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:57,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3454 Valid, 3995 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:55:57,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-09 23:55:57,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 420. [2024-11-09 23:55:57,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.4725536992840096) internal successors, (617), 419 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 617 transitions. [2024-11-09 23:55:57,783 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 617 transitions. Word has length 97 [2024-11-09 23:55:57,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:57,784 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 617 transitions. [2024-11-09 23:55:57,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 617 transitions. [2024-11-09 23:55:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 23:55:57,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:57,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:57,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:55:57,790 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:57,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:57,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1481503206, now seen corresponding path program 1 times [2024-11-09 23:55:57,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:57,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597376959] [2024-11-09 23:55:57,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:57,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:58,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:58,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:58,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597376959] [2024-11-09 23:55:58,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597376959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:58,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:58,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:55:58,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092574949] [2024-11-09 23:55:58,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:58,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:55:58,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:58,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:55:58,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:55:58,250 INFO L87 Difference]: Start difference. First operand 420 states and 617 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:58,589 INFO L93 Difference]: Finished difference Result 2091 states and 3175 transitions. [2024-11-09 23:55:58,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:55:58,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-09 23:55:58,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:58,599 INFO L225 Difference]: With dead ends: 2091 [2024-11-09 23:55:58,600 INFO L226 Difference]: Without dead ends: 1771 [2024-11-09 23:55:58,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:55:58,604 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 3151 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:58,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 1543 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:55:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2024-11-09 23:55:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1761. [2024-11-09 23:55:58,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1760 states have (on average 1.5170454545454546) internal successors, (2670), 1760 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2670 transitions. [2024-11-09 23:55:58,654 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2670 transitions. Word has length 99 [2024-11-09 23:55:58,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:58,655 INFO L471 AbstractCegarLoop]: Abstraction has 1761 states and 2670 transitions. [2024-11-09 23:55:58,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:58,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2670 transitions. [2024-11-09 23:55:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:55:58,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:58,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:58,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:55:58,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:58,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash 502776373, now seen corresponding path program 1 times [2024-11-09 23:55:58,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:58,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912351331] [2024-11-09 23:55:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:58,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:58,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:58,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912351331] [2024-11-09 23:55:58,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912351331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:58,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:58,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:55:58,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642889681] [2024-11-09 23:55:58,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:58,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:55:58,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:58,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:55:58,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:55:58,876 INFO L87 Difference]: Start difference. First operand 1761 states and 2670 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:59,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:59,203 INFO L93 Difference]: Finished difference Result 4519 states and 6938 transitions. [2024-11-09 23:55:59,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:55:59,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-09 23:55:59,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:59,217 INFO L225 Difference]: With dead ends: 4519 [2024-11-09 23:55:59,217 INFO L226 Difference]: Without dead ends: 2957 [2024-11-09 23:55:59,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:59,223 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1398 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:59,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 389 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:55:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2024-11-09 23:55:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2955. [2024-11-09 23:55:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2954 states have (on average 1.5280974949221395) internal successors, (4514), 2954 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:59,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 4514 transitions. [2024-11-09 23:55:59,284 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 4514 transitions. Word has length 100 [2024-11-09 23:55:59,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:59,284 INFO L471 AbstractCegarLoop]: Abstraction has 2955 states and 4514 transitions. [2024-11-09 23:55:59,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:59,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 4514 transitions. [2024-11-09 23:55:59,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:55:59,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:59,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:59,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:55:59,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:59,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:59,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1275208447, now seen corresponding path program 1 times [2024-11-09 23:55:59,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:59,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919521978] [2024-11-09 23:55:59,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:59,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:59,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:59,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:59,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919521978] [2024-11-09 23:55:59,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919521978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:59,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:59,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:55:59,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357183628] [2024-11-09 23:55:59,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:59,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:55:59,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:55:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:55:59,474 INFO L87 Difference]: Start difference. First operand 2955 states and 4514 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:59,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:59,831 INFO L93 Difference]: Finished difference Result 8152 states and 12543 transitions. [2024-11-09 23:55:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:55:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-09 23:55:59,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:59,855 INFO L225 Difference]: With dead ends: 8152 [2024-11-09 23:55:59,856 INFO L226 Difference]: Without dead ends: 5355 [2024-11-09 23:55:59,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:59,866 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1400 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:59,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 380 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:55:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5355 states. [2024-11-09 23:55:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5355 to 5353. [2024-11-09 23:55:59,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5352 states have (on average 1.5325112107623318) internal successors, (8202), 5352 states have internal predecessors, (8202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 8202 transitions. [2024-11-09 23:55:59,987 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 8202 transitions. Word has length 100 [2024-11-09 23:55:59,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:59,989 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 8202 transitions. [2024-11-09 23:55:59,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:59,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 8202 transitions. [2024-11-09 23:55:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:55:59,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:59,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:59,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:55:59,993 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:59,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:59,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1288173068, now seen corresponding path program 1 times [2024-11-09 23:55:59,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:59,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44520719] [2024-11-09 23:55:59,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:59,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:00,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:00,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44520719] [2024-11-09 23:56:00,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44520719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:00,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:00,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:56:00,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606675508] [2024-11-09 23:56:00,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:00,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:56:00,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:00,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:56:00,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:00,167 INFO L87 Difference]: Start difference. First operand 5353 states and 8202 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:00,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:00,528 INFO L93 Difference]: Finished difference Result 15433 states and 23744 transitions. [2024-11-09 23:56:00,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:56:00,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-09 23:56:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:00,564 INFO L225 Difference]: With dead ends: 15433 [2024-11-09 23:56:00,564 INFO L226 Difference]: Without dead ends: 10201 [2024-11-09 23:56:00,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:56:00,574 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1428 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:00,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 379 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:56:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10201 states. [2024-11-09 23:56:00,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10201 to 10199. [2024-11-09 23:56:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10199 states, 10198 states have (on average 1.532359286134536) internal successors, (15627), 10198 states have internal predecessors, (15627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:00,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10199 states to 10199 states and 15627 transitions. [2024-11-09 23:56:00,768 INFO L78 Accepts]: Start accepts. Automaton has 10199 states and 15627 transitions. Word has length 100 [2024-11-09 23:56:00,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:00,769 INFO L471 AbstractCegarLoop]: Abstraction has 10199 states and 15627 transitions. [2024-11-09 23:56:00,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:00,769 INFO L276 IsEmpty]: Start isEmpty. Operand 10199 states and 15627 transitions. [2024-11-09 23:56:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:56:00,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:00,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:00,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:56:00,773 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:00,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:00,773 INFO L85 PathProgramCache]: Analyzing trace with hash -780627561, now seen corresponding path program 1 times [2024-11-09 23:56:00,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:00,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92129748] [2024-11-09 23:56:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:00,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:00,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92129748] [2024-11-09 23:56:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92129748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:00,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:56:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856525269] [2024-11-09 23:56:00,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:00,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:56:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:00,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:56:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:00,959 INFO L87 Difference]: Start difference. First operand 10199 states and 15627 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:01,310 INFO L93 Difference]: Finished difference Result 30047 states and 46141 transitions. [2024-11-09 23:56:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:56:01,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-09 23:56:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:01,368 INFO L225 Difference]: With dead ends: 30047 [2024-11-09 23:56:01,368 INFO L226 Difference]: Without dead ends: 19939 [2024-11-09 23:56:01,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:56:01,387 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1456 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:01,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 378 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:56:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19939 states. [2024-11-09 23:56:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19939 to 19937. [2024-11-09 23:56:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19937 states, 19936 states have (on average 1.528741974317817) internal successors, (30477), 19936 states have internal predecessors, (30477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:01,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19937 states to 19937 states and 30477 transitions. [2024-11-09 23:56:01,902 INFO L78 Accepts]: Start accepts. Automaton has 19937 states and 30477 transitions. Word has length 100 [2024-11-09 23:56:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:01,903 INFO L471 AbstractCegarLoop]: Abstraction has 19937 states and 30477 transitions. [2024-11-09 23:56:01,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 19937 states and 30477 transitions. [2024-11-09 23:56:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:56:01,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:01,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:01,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:56:01,916 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:01,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:01,917 INFO L85 PathProgramCache]: Analyzing trace with hash 235564962, now seen corresponding path program 1 times [2024-11-09 23:56:01,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:01,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636667516] [2024-11-09 23:56:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:01,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:02,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:02,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636667516] [2024-11-09 23:56:02,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636667516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:02,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:02,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:56:02,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786024304] [2024-11-09 23:56:02,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:02,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:56:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:02,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:56:02,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:02,125 INFO L87 Difference]: Start difference. First operand 19937 states and 30477 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:02,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:02,660 INFO L93 Difference]: Finished difference Result 59316 states and 90784 transitions. [2024-11-09 23:56:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:56:02,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-09 23:56:02,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:02,752 INFO L225 Difference]: With dead ends: 59316 [2024-11-09 23:56:02,752 INFO L226 Difference]: Without dead ends: 39447 [2024-11-09 23:56:02,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:56:02,779 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1484 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:02,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 377 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:56:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39447 states. [2024-11-09 23:56:03,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39447 to 39445. [2024-11-09 23:56:03,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39445 states, 39444 states have (on average 1.5227157489098468) internal successors, (60062), 39444 states have internal predecessors, (60062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39445 states to 39445 states and 60062 transitions. [2024-11-09 23:56:03,527 INFO L78 Accepts]: Start accepts. Automaton has 39445 states and 60062 transitions. Word has length 100 [2024-11-09 23:56:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:03,528 INFO L471 AbstractCegarLoop]: Abstraction has 39445 states and 60062 transitions. [2024-11-09 23:56:03,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 39445 states and 60062 transitions. [2024-11-09 23:56:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:56:03,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:03,541 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:03,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:56:03,542 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:03,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash -753381331, now seen corresponding path program 1 times [2024-11-09 23:56:03,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:03,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075645675] [2024-11-09 23:56:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:03,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:03,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075645675] [2024-11-09 23:56:03,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075645675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:03,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:03,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:56:03,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186115724] [2024-11-09 23:56:03,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:03,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:56:03,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:03,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:56:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:03,852 INFO L87 Difference]: Start difference. First operand 39445 states and 60062 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:04,534 INFO L93 Difference]: Finished difference Result 117851 states and 179546 transitions. [2024-11-09 23:56:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:56:04,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-09 23:56:04,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:04,670 INFO L225 Difference]: With dead ends: 117851 [2024-11-09 23:56:04,670 INFO L226 Difference]: Without dead ends: 78458 [2024-11-09 23:56:04,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:56:04,701 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1516 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:04,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 375 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:56:04,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78458 states. [2024-11-09 23:56:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78458 to 78456. [2024-11-09 23:56:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78456 states, 78455 states have (on average 1.5146644573322288) internal successors, (118833), 78455 states have internal predecessors, (118833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78456 states to 78456 states and 118833 transitions. [2024-11-09 23:56:06,380 INFO L78 Accepts]: Start accepts. Automaton has 78456 states and 118833 transitions. Word has length 100 [2024-11-09 23:56:06,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:06,381 INFO L471 AbstractCegarLoop]: Abstraction has 78456 states and 118833 transitions. [2024-11-09 23:56:06,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:06,381 INFO L276 IsEmpty]: Start isEmpty. Operand 78456 states and 118833 transitions. [2024-11-09 23:56:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 23:56:06,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:06,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:06,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:56:06,404 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:06,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:06,405 INFO L85 PathProgramCache]: Analyzing trace with hash 667504443, now seen corresponding path program 1 times [2024-11-09 23:56:06,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:06,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901973366] [2024-11-09 23:56:06,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:06,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:06,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:06,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:06,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901973366] [2024-11-09 23:56:06,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901973366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:06,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:06,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:56:06,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753404459] [2024-11-09 23:56:06,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:06,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:56:06,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:06,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:56:06,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:06,850 INFO L87 Difference]: Start difference. First operand 78456 states and 118833 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:07,197 INFO L93 Difference]: Finished difference Result 80762 states and 121906 transitions. [2024-11-09 23:56:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:56:07,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-09 23:56:07,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:07,308 INFO L225 Difference]: With dead ends: 80762 [2024-11-09 23:56:07,308 INFO L226 Difference]: Without dead ends: 80760 [2024-11-09 23:56:07,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:56:07,345 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 0 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:07,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1450 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:07,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80760 states. [2024-11-09 23:56:08,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80760 to 80760. [2024-11-09 23:56:08,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80760 states, 80759 states have (on average 1.4999814262187496) internal successors, (121137), 80759 states have internal predecessors, (121137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80760 states to 80760 states and 121137 transitions. [2024-11-09 23:56:08,918 INFO L78 Accepts]: Start accepts. Automaton has 80760 states and 121137 transitions. Word has length 101 [2024-11-09 23:56:08,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:08,918 INFO L471 AbstractCegarLoop]: Abstraction has 80760 states and 121137 transitions. [2024-11-09 23:56:08,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand 80760 states and 121137 transitions. [2024-11-09 23:56:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 23:56:08,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:08,935 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:08,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:56:08,935 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:08,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash -605767165, now seen corresponding path program 1 times [2024-11-09 23:56:08,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:08,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927354596] [2024-11-09 23:56:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:08,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:09,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927354596] [2024-11-09 23:56:09,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927354596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:09,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:09,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:56:09,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684278158] [2024-11-09 23:56:09,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:09,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:56:09,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:09,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:56:09,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:56:09,257 INFO L87 Difference]: Start difference. First operand 80760 states and 121137 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:10,452 INFO L93 Difference]: Finished difference Result 228828 states and 343075 transitions. [2024-11-09 23:56:10,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:56:10,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-09 23:56:10,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:10,798 INFO L225 Difference]: With dead ends: 228828 [2024-11-09 23:56:10,798 INFO L226 Difference]: Without dead ends: 150106 [2024-11-09 23:56:10,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:56:10,835 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 305 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:10,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 910 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150106 states. [2024-11-09 23:56:12,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150106 to 150104. [2024-11-09 23:56:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150104 states, 150103 states have (on average 1.493168024623092) internal successors, (224129), 150103 states have internal predecessors, (224129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150104 states to 150104 states and 224129 transitions. [2024-11-09 23:56:13,010 INFO L78 Accepts]: Start accepts. Automaton has 150104 states and 224129 transitions. Word has length 102 [2024-11-09 23:56:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:13,010 INFO L471 AbstractCegarLoop]: Abstraction has 150104 states and 224129 transitions. [2024-11-09 23:56:13,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 150104 states and 224129 transitions. [2024-11-09 23:56:13,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:56:13,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:13,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:13,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:56:13,026 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:13,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:13,026 INFO L85 PathProgramCache]: Analyzing trace with hash 129810850, now seen corresponding path program 1 times [2024-11-09 23:56:13,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:13,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854034735] [2024-11-09 23:56:13,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:13,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:13,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:13,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854034735] [2024-11-09 23:56:13,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854034735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:13,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:13,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:13,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316931137] [2024-11-09 23:56:13,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:13,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:13,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:13,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:13,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:13,111 INFO L87 Difference]: Start difference. First operand 150104 states and 224129 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:14,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:14,769 INFO L93 Difference]: Finished difference Result 332441 states and 496102 transitions. [2024-11-09 23:56:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:14,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-09 23:56:14,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:15,132 INFO L225 Difference]: With dead ends: 332441 [2024-11-09 23:56:15,132 INFO L226 Difference]: Without dead ends: 201661 [2024-11-09 23:56:15,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:15,243 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 258 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:15,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 709 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:15,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201661 states. [2024-11-09 23:56:17,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201661 to 200586. [2024-11-09 23:56:17,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200586 states, 200585 states have (on average 1.4794077323827803) internal successors, (296747), 200585 states have internal predecessors, (296747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200586 states to 200586 states and 296747 transitions. [2024-11-09 23:56:18,800 INFO L78 Accepts]: Start accepts. Automaton has 200586 states and 296747 transitions. Word has length 103 [2024-11-09 23:56:18,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:18,800 INFO L471 AbstractCegarLoop]: Abstraction has 200586 states and 296747 transitions. [2024-11-09 23:56:18,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:18,800 INFO L276 IsEmpty]: Start isEmpty. Operand 200586 states and 296747 transitions. [2024-11-09 23:56:18,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:56:18,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:18,838 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:18,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:56:18,839 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:18,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:18,839 INFO L85 PathProgramCache]: Analyzing trace with hash 508089395, now seen corresponding path program 1 times [2024-11-09 23:56:18,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:18,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991127902] [2024-11-09 23:56:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:18,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:18,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:18,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991127902] [2024-11-09 23:56:18,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991127902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:18,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:18,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:18,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829957696] [2024-11-09 23:56:18,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:18,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:18,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:18,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:18,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:18,971 INFO L87 Difference]: Start difference. First operand 200586 states and 296747 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:20,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:20,788 INFO L93 Difference]: Finished difference Result 404845 states and 598097 transitions. [2024-11-09 23:56:20,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:20,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-09 23:56:20,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:21,283 INFO L225 Difference]: With dead ends: 404845 [2024-11-09 23:56:21,284 INFO L226 Difference]: Without dead ends: 252751 [2024-11-09 23:56:21,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:21,410 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 246 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:21,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 707 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:21,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252751 states. [2024-11-09 23:56:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252751 to 251370. [2024-11-09 23:56:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251370 states, 251369 states have (on average 1.4631080204798523) internal successors, (367780), 251369 states have internal predecessors, (367780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251370 states to 251370 states and 367780 transitions. [2024-11-09 23:56:24,775 INFO L78 Accepts]: Start accepts. Automaton has 251370 states and 367780 transitions. Word has length 103 [2024-11-09 23:56:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:24,775 INFO L471 AbstractCegarLoop]: Abstraction has 251370 states and 367780 transitions. [2024-11-09 23:56:24,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 251370 states and 367780 transitions. [2024-11-09 23:56:25,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:56:25,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:25,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:25,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:56:25,592 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:25,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:25,593 INFO L85 PathProgramCache]: Analyzing trace with hash 568287778, now seen corresponding path program 1 times [2024-11-09 23:56:25,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:25,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447553909] [2024-11-09 23:56:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:25,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:25,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:25,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447553909] [2024-11-09 23:56:25,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447553909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:25,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:25,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:25,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927478030] [2024-11-09 23:56:25,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:25,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:25,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:25,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:25,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:25,801 INFO L87 Difference]: Start difference. First operand 251370 states and 367780 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:27,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:27,318 INFO L93 Difference]: Finished difference Result 469345 states and 685505 transitions. [2024-11-09 23:56:27,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:27,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-09 23:56:27,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:28,861 INFO L225 Difference]: With dead ends: 469345 [2024-11-09 23:56:28,861 INFO L226 Difference]: Without dead ends: 303767 [2024-11-09 23:56:28,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:28,948 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 234 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:28,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 705 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:56:29,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303767 states. [2024-11-09 23:56:32,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303767 to 301899. [2024-11-09 23:56:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301899 states, 301898 states have (on average 1.445011228958125) internal successors, (436246), 301898 states have internal predecessors, (436246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:33,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301899 states to 301899 states and 436246 transitions. [2024-11-09 23:56:33,963 INFO L78 Accepts]: Start accepts. Automaton has 301899 states and 436246 transitions. Word has length 103 [2024-11-09 23:56:33,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:33,963 INFO L471 AbstractCegarLoop]: Abstraction has 301899 states and 436246 transitions. [2024-11-09 23:56:33,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:33,963 INFO L276 IsEmpty]: Start isEmpty. Operand 301899 states and 436246 transitions. [2024-11-09 23:56:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:56:33,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:33,990 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:33,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:56:33,991 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:33,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:33,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1296889203, now seen corresponding path program 1 times [2024-11-09 23:56:33,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:33,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905619238] [2024-11-09 23:56:33,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:33,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:34,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:34,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905619238] [2024-11-09 23:56:34,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905619238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:34,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:34,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:34,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694843658] [2024-11-09 23:56:34,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:34,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:34,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:34,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:34,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:34,075 INFO L87 Difference]: Start difference. First operand 301899 states and 436246 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:36,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:36,322 INFO L93 Difference]: Finished difference Result 503929 states and 726362 transitions. [2024-11-09 23:56:36,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:36,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-09 23:56:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:36,911 INFO L225 Difference]: With dead ends: 503929 [2024-11-09 23:56:36,912 INFO L226 Difference]: Without dead ends: 344119 [2024-11-09 23:56:37,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:37,010 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 222 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:37,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 721 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:37,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344119 states. [2024-11-09 23:56:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344119 to 341653. [2024-11-09 23:56:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341653 states, 341652 states have (on average 1.4246894500837108) internal successors, (486748), 341652 states have internal predecessors, (486748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341653 states to 341653 states and 486748 transitions. [2024-11-09 23:56:41,883 INFO L78 Accepts]: Start accepts. Automaton has 341653 states and 486748 transitions. Word has length 103 [2024-11-09 23:56:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:41,884 INFO L471 AbstractCegarLoop]: Abstraction has 341653 states and 486748 transitions. [2024-11-09 23:56:41,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 341653 states and 486748 transitions. [2024-11-09 23:56:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:56:41,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:41,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:56:41,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:56:41,906 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:41,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:41,906 INFO L85 PathProgramCache]: Analyzing trace with hash -951992716, now seen corresponding path program 1 times [2024-11-09 23:56:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898329250] [2024-11-09 23:56:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:41,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:42,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:42,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898329250] [2024-11-09 23:56:42,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898329250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:42,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:42,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:56:42,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200071621] [2024-11-09 23:56:42,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:42,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 23:56:42,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 23:56:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:56:42,957 INFO L87 Difference]: Start difference. First operand 341653 states and 486748 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)