./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.p+lhb-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 1d2ed0f37ff2caecb0f852b41838696d35f940cfb2007be63d1246f35f6e95b8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:41:46,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:41:46,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:41:46,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:41:46,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:41:46,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:41:46,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:41:46,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:41:46,225 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:41:46,225 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:41:46,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:41:46,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:41:46,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:41:46,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:41:46,227 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:41:46,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:41:46,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:41:46,228 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:41:46,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:41:46,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:41:46,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:41:46,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:41:46,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:41:46,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:41:46,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:41:46,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:41:46,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:41:46,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:41:46,232 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:41:46,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:41:46,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:41:46,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:41:46,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:41:46,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:41:46,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:41:46,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:41:46,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:41:46,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:41:46,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:41:46,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:41:46,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:41:46,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:41:46,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2ed0f37ff2caecb0f852b41838696d35f940cfb2007be63d1246f35f6e95b8 [2024-11-16 08:41:46,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:41:46,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:41:46,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:41:46,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:41:46,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:41:46,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-16 08:41:47,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:41:48,156 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:41:48,157 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-16 08:41:48,180 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e58e67ba/1329ee132dc74b2cbbdcaafc2ed022ce/FLAG4d4480eed [2024-11-16 08:41:48,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e58e67ba/1329ee132dc74b2cbbdcaafc2ed022ce [2024-11-16 08:41:48,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:41:48,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:41:48,199 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:41:48,199 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:41:48,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:41:48,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:48,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a6c4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48, skipping insertion in model container [2024-11-16 08:41:48,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:48,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:41:48,643 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[14220,14233] [2024-11-16 08:41:48,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:41:48,754 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:41:48,820 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[14220,14233] [2024-11-16 08:41:48,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:41:48,887 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:41:48,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48 WrapperNode [2024-11-16 08:41:48,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:41:48,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:41:48,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:41:48,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:41:48,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:48,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:48,969 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1287 [2024-11-16 08:41:48,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:41:48,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:41:48,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:41:48,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:41:48,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:48,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:48,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,019 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]. [2024-11-16 08:41:49,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,065 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:41:49,065 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:41:49,065 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:41:49,066 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:41:49,066 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (1/1) ... [2024-11-16 08:41:49,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:41:49,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:41:49,096 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) [2024-11-16 08:41:49,100 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 [2024-11-16 08:41:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:41:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:41:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:41:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:41:49,302 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:41:49,306 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:41:50,444 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L993: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:41:50,446 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L597: havoc main_~node3__m3~3#1; [2024-11-16 08:41:50,446 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node2__m2~0#1; [2024-11-16 08:41:50,446 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L466: havoc main_~node2__m2~2#1; [2024-11-16 08:41:50,446 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1391: havoc main_~node5____CPAchecker_TMP_0~2#1; [2024-11-16 08:41:50,446 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L334: havoc main_~node1__m1~1#1;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; [2024-11-16 08:41:50,447 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L797: havoc main_~main____CPAchecker_TMP_0~4#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2024-11-16 08:41:50,447 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: havoc main_~node4__m4~4#1; [2024-11-16 08:41:50,447 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L566: havoc main_~node1__m1~3#1;havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-16 08:41:50,447 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1260: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:41:50,447 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1657: havoc main_~node5____CPAchecker_TMP_0~3#1; [2024-11-16 08:41:50,447 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1526: havoc main_~node2____CPAchecker_TMP_0~2#1; [2024-11-16 08:41:50,448 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1923: havoc main_~node5____CPAchecker_TMP_0~4#1; [2024-11-16 08:41:50,448 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L701: havoc main_~node2__m2~4#1; [2024-11-16 08:41:50,448 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1792: havoc main_~node2____CPAchecker_TMP_0~3#1; [2024-11-16 08:41:50,449 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2058: havoc main_~node2____CPAchecker_TMP_0~4#1; [2024-11-16 08:41:50,449 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L903: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:41:50,449 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1170: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-16 08:41:50,449 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1038: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:41:50,451 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L279: havoc main_~node5__m5~0#1; [2024-11-16 08:41:50,452 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L511: havoc main_~node5__m5~2#1; [2024-11-16 08:41:50,452 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1436: havoc main_~node4____CPAchecker_TMP_0~2#1; [2024-11-16 08:41:50,452 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L380: havoc main_~node4__m4~1#1; [2024-11-16 08:41:50,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1305: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:41:50,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1702: havoc main_~node4____CPAchecker_TMP_0~3#1; [2024-11-16 08:41:50,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L612: havoc main_~node4__m4~3#1; [2024-11-16 08:41:50,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L249: havoc main_~node3__m3~0#1; [2024-11-16 08:41:50,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1571: havoc main_~node1____CPAchecker_TMP_0~2#1; [2024-11-16 08:41:50,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node3__m3~2#1; [2024-11-16 08:41:50,453 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1968: havoc main_~node4____CPAchecker_TMP_0~4#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: havoc main_~node5__m5~4#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L350: havoc main_~node2__m2~1#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L218: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1837: havoc main_~node1____CPAchecker_TMP_0~3#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L582: havoc main_~node2__m2~3#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L450: 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; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2103: havoc main_~node1____CPAchecker_TMP_0~4#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc main_~node3__m3~4#1; [2024-11-16 08:41:50,454 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L948: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L685: havoc main_~node1__m1~4#1;havoc main_~main____CPAchecker_TMP_0~3#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1215: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1481: havoc main_~node3____CPAchecker_TMP_0~2#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1747: havoc main_~node3____CPAchecker_TMP_0~3#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2013: havoc main_~node3____CPAchecker_TMP_0~4#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L395: havoc main_~node5__m5~1#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L858: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L627: havoc main_~node5__m5~3#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L264: havoc main_~node4__m4~0#1; [2024-11-16 08:41:50,455 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L496: havoc main_~node4__m4~2#1; [2024-11-16 08:41:50,456 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L365: havoc main_~node3__m3~1#1; [2024-11-16 08:41:50,456 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1125: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-16 08:41:50,521 INFO L? ?]: Removed 191 outVars from TransFormulas that were not future-live. [2024-11-16 08:41:50,521 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:41:50,546 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:41:50,550 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:41:50,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:41:50 BoogieIcfgContainer [2024-11-16 08:41:50,551 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:41:50,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:41:50,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:41:50,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:41:50,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:41:48" (1/3) ... [2024-11-16 08:41:50,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23abe3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:41:50, skipping insertion in model container [2024-11-16 08:41:50,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:41:48" (2/3) ... [2024-11-16 08:41:50,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23abe3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:41:50, skipping insertion in model container [2024-11-16 08:41:50,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:41:50" (3/3) ... [2024-11-16 08:41:50,561 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-16 08:41:50,574 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:41:50,575 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:41:50,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:41:50,682 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;@7dba3db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:41:50,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:41:50,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 375 states have (on average 1.5813333333333333) internal successors, (593), 376 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:50,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:41:50,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:50,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:50,711 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:50,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash -884883112, now seen corresponding path program 1 times [2024-11-16 08:41:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:50,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121278202] [2024-11-16 08:41:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:51,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:51,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121278202] [2024-11-16 08:41:51,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121278202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:51,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:51,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:41:51,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242408075] [2024-11-16 08:41:51,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:51,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:41:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:41:51,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:41:51,424 INFO L87 Difference]: Start difference. First operand has 377 states, 375 states have (on average 1.5813333333333333) internal successors, (593), 376 states have internal predecessors, (593), 0 states have call successors, (0), 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 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:51,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:51,581 INFO L93 Difference]: Finished difference Result 721 states and 1122 transitions. [2024-11-16 08:41:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:41:51,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-16 08:41:51,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:51,595 INFO L225 Difference]: With dead ends: 721 [2024-11-16 08:41:51,596 INFO L226 Difference]: Without dead ends: 373 [2024-11-16 08:41:51,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:41:51,602 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 126 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:51,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1617 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:41:51,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-16 08:41:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2024-11-16 08:41:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.4731182795698925) internal successors, (548), 372 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 548 transitions. [2024-11-16 08:41:51,648 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 548 transitions. Word has length 127 [2024-11-16 08:41:51,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:51,649 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 548 transitions. [2024-11-16 08:41:51,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:51,649 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 548 transitions. [2024-11-16 08:41:51,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-16 08:41:51,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:51,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:51,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:41:51,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:51,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:51,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1630727323, now seen corresponding path program 1 times [2024-11-16 08:41:51,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:51,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627648902] [2024-11-16 08:41:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:51,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:51,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627648902] [2024-11-16 08:41:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627648902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:51,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:51,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:41:51,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602102526] [2024-11-16 08:41:51,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:51,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:41:51,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:41:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:41:51,863 INFO L87 Difference]: Start difference. First operand 373 states and 548 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:51,932 INFO L93 Difference]: Finished difference Result 884 states and 1347 transitions. [2024-11-16 08:41:51,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:41:51,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 187 [2024-11-16 08:41:51,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:51,939 INFO L225 Difference]: With dead ends: 884 [2024-11-16 08:41:51,940 INFO L226 Difference]: Without dead ends: 582 [2024-11-16 08:41:51,942 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 [2024-11-16 08:41:51,945 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 355 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:51,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 971 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:41:51,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-16 08:41:51,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 580. [2024-11-16 08:41:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 1.4991364421416236) internal successors, (868), 579 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 868 transitions. [2024-11-16 08:41:51,983 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 868 transitions. Word has length 187 [2024-11-16 08:41:51,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:51,983 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 868 transitions. [2024-11-16 08:41:51,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:51,984 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 868 transitions. [2024-11-16 08:41:51,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-16 08:41:51,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:51,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:51,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:41:51,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:51,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:51,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1177143541, now seen corresponding path program 1 times [2024-11-16 08:41:51,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:51,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413555129] [2024-11-16 08:41:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:51,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:52,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:52,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413555129] [2024-11-16 08:41:52,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413555129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:52,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:52,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:41:52,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372654714] [2024-11-16 08:41:52,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:52,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:41:52,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:52,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:41:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:41:52,158 INFO L87 Difference]: Start difference. First operand 580 states and 868 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:52,230 INFO L93 Difference]: Finished difference Result 1459 states and 2236 transitions. [2024-11-16 08:41:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:41:52,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 190 [2024-11-16 08:41:52,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:52,236 INFO L225 Difference]: With dead ends: 1459 [2024-11-16 08:41:52,236 INFO L226 Difference]: Without dead ends: 956 [2024-11-16 08:41:52,237 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 [2024-11-16 08:41:52,239 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 342 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:52,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 951 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:41:52,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-16 08:41:52,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 954. [2024-11-16 08:41:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 953 states have (on average 1.5131164742917105) internal successors, (1442), 953 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1442 transitions. [2024-11-16 08:41:52,269 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1442 transitions. Word has length 190 [2024-11-16 08:41:52,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:52,273 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1442 transitions. [2024-11-16 08:41:52,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1442 transitions. [2024-11-16 08:41:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:41:52,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:52,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:52,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:41:52,279 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:52,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:52,280 INFO L85 PathProgramCache]: Analyzing trace with hash 471450163, now seen corresponding path program 1 times [2024-11-16 08:41:52,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:52,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063496552] [2024-11-16 08:41:52,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:52,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:52,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:52,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063496552] [2024-11-16 08:41:52,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063496552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:52,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:52,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:41:52,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722884629] [2024-11-16 08:41:52,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:52,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:41:52,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:52,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:41:52,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:41:52,439 INFO L87 Difference]: Start difference. First operand 954 states and 1442 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:52,491 INFO L93 Difference]: Finished difference Result 2491 states and 3816 transitions. [2024-11-16 08:41:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:41:52,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2024-11-16 08:41:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:52,499 INFO L225 Difference]: With dead ends: 2491 [2024-11-16 08:41:52,499 INFO L226 Difference]: Without dead ends: 1620 [2024-11-16 08:41:52,500 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 [2024-11-16 08:41:52,501 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 329 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:52,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 931 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:41:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-11-16 08:41:52,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1618. [2024-11-16 08:41:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1617 states have (on average 1.5151515151515151) internal successors, (2450), 1617 states have internal predecessors, (2450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2450 transitions. [2024-11-16 08:41:52,536 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2450 transitions. Word has length 193 [2024-11-16 08:41:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:52,536 INFO L471 AbstractCegarLoop]: Abstraction has 1618 states and 2450 transitions. [2024-11-16 08:41:52,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2450 transitions. [2024-11-16 08:41:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 08:41:52,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:52,542 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:52,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:41:52,543 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:52,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash 539050087, now seen corresponding path program 1 times [2024-11-16 08:41:52,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:52,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563521792] [2024-11-16 08:41:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:52,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:52,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563521792] [2024-11-16 08:41:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563521792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:52,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:52,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:41:52,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692972867] [2024-11-16 08:41:52,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:52,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:41:52,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:52,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:41:52,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:41:52,706 INFO L87 Difference]: Start difference. First operand 1618 states and 2450 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:52,767 INFO L93 Difference]: Finished difference Result 4305 states and 6556 transitions. [2024-11-16 08:41:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:41:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2024-11-16 08:41:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:52,778 INFO L225 Difference]: With dead ends: 4305 [2024-11-16 08:41:52,778 INFO L226 Difference]: Without dead ends: 2776 [2024-11-16 08:41:52,781 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 [2024-11-16 08:41:52,782 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 316 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:52,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 911 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:41:52,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2024-11-16 08:41:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2774. [2024-11-16 08:41:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2773 states have (on average 1.5066714749368915) internal successors, (4178), 2773 states have internal predecessors, (4178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 4178 transitions. [2024-11-16 08:41:52,840 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 4178 transitions. Word has length 196 [2024-11-16 08:41:52,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:52,841 INFO L471 AbstractCegarLoop]: Abstraction has 2774 states and 4178 transitions. [2024-11-16 08:41:52,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 4178 transitions. [2024-11-16 08:41:52,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-16 08:41:52,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:52,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:52,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:41:52,847 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:52,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:52,848 INFO L85 PathProgramCache]: Analyzing trace with hash 492282188, now seen corresponding path program 1 times [2024-11-16 08:41:52,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:52,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081373760] [2024-11-16 08:41:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:52,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:52,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:52,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:52,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081373760] [2024-11-16 08:41:52,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081373760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:52,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:52,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:41:52,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590941199] [2024-11-16 08:41:52,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:52,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:41:52,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:52,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:41:52,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:41:52,996 INFO L87 Difference]: Start difference. First operand 2774 states and 4178 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:53,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:53,105 INFO L93 Difference]: Finished difference Result 7419 states and 11172 transitions. [2024-11-16 08:41:53,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:41:53,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2024-11-16 08:41:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:53,123 INFO L225 Difference]: With dead ends: 7419 [2024-11-16 08:41:53,124 INFO L226 Difference]: Without dead ends: 4740 [2024-11-16 08:41:53,127 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 [2024-11-16 08:41:53,129 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 302 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:53,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 973 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:41:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2024-11-16 08:41:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 4738. [2024-11-16 08:41:53,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4738 states, 4737 states have (on average 1.4882837238758708) internal successors, (7050), 4737 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:53,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4738 states to 4738 states and 7050 transitions. [2024-11-16 08:41:53,253 INFO L78 Accepts]: Start accepts. Automaton has 4738 states and 7050 transitions. Word has length 199 [2024-11-16 08:41:53,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:53,253 INFO L471 AbstractCegarLoop]: Abstraction has 4738 states and 7050 transitions. [2024-11-16 08:41:53,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:53,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4738 states and 7050 transitions. [2024-11-16 08:41:53,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-16 08:41:53,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:53,263 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:53,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:41:53,264 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:53,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:53,264 INFO L85 PathProgramCache]: Analyzing trace with hash -546547093, now seen corresponding path program 1 times [2024-11-16 08:41:53,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:53,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40450915] [2024-11-16 08:41:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:53,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:53,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:53,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:53,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40450915] [2024-11-16 08:41:53,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40450915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:53,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:53,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:41:53,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578321501] [2024-11-16 08:41:53,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:53,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:41:53,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:53,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:41:53,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:41:53,580 INFO L87 Difference]: Start difference. First operand 4738 states and 7050 transitions. Second operand has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 7 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:54,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:54,413 INFO L93 Difference]: Finished difference Result 43417 states and 64391 transitions. [2024-11-16 08:41:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 08:41:54,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 7 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2024-11-16 08:41:54,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:54,651 INFO L225 Difference]: With dead ends: 43417 [2024-11-16 08:41:54,651 INFO L226 Difference]: Without dead ends: 38781 [2024-11-16 08:41:54,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:41:54,678 INFO L432 NwaCegarLoop]: 1421 mSDtfsCounter, 3815 mSDsluCounter, 5002 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:54,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3815 Valid, 6423 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:41:54,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38781 states. [2024-11-16 08:41:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38781 to 9307. [2024-11-16 08:41:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9307 states, 9306 states have (on average 1.463571889103804) internal successors, (13620), 9306 states have internal predecessors, (13620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9307 states to 9307 states and 13620 transitions. [2024-11-16 08:41:55,221 INFO L78 Accepts]: Start accepts. Automaton has 9307 states and 13620 transitions. Word has length 202 [2024-11-16 08:41:55,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:55,221 INFO L471 AbstractCegarLoop]: Abstraction has 9307 states and 13620 transitions. [2024-11-16 08:41:55,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.857142857142858) internal successors, (202), 7 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:55,222 INFO L276 IsEmpty]: Start isEmpty. Operand 9307 states and 13620 transitions. [2024-11-16 08:41:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 08:41:55,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:55,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:55,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:41:55,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:55,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:55,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1613540457, now seen corresponding path program 1 times [2024-11-16 08:41:55,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:55,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220374653] [2024-11-16 08:41:55,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:55,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:55,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:55,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220374653] [2024-11-16 08:41:55,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220374653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:55,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:55,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:41:55,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819237113] [2024-11-16 08:41:55,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:55,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:41:55,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:41:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:41:55,874 INFO L87 Difference]: Start difference. First operand 9307 states and 13620 transitions. Second operand has 7 states, 7 states have (on average 29.571428571428573) internal successors, (207), 7 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:56,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:56,360 INFO L93 Difference]: Finished difference Result 18513 states and 27125 transitions. [2024-11-16 08:41:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:41:56,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.571428571428573) internal successors, (207), 7 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2024-11-16 08:41:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:56,377 INFO L225 Difference]: With dead ends: 18513 [2024-11-16 08:41:56,377 INFO L226 Difference]: Without dead ends: 9309 [2024-11-16 08:41:56,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:41:56,387 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 1155 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:56,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 2119 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:41:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9309 states. [2024-11-16 08:41:56,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9309 to 9307. [2024-11-16 08:41:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9307 states, 9306 states have (on average 1.4497098646034816) internal successors, (13491), 9306 states have internal predecessors, (13491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9307 states to 9307 states and 13491 transitions. [2024-11-16 08:41:56,545 INFO L78 Accepts]: Start accepts. Automaton has 9307 states and 13491 transitions. Word has length 207 [2024-11-16 08:41:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:56,546 INFO L471 AbstractCegarLoop]: Abstraction has 9307 states and 13491 transitions. [2024-11-16 08:41:56,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.571428571428573) internal successors, (207), 7 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:56,546 INFO L276 IsEmpty]: Start isEmpty. Operand 9307 states and 13491 transitions. [2024-11-16 08:41:56,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-16 08:41:56,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:56,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:56,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:41:56,563 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:56,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:56,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1023544852, now seen corresponding path program 1 times [2024-11-16 08:41:56,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:56,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011672781] [2024-11-16 08:41:56,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:56,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:56,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:56,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011672781] [2024-11-16 08:41:56,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011672781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:56,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:56,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:41:56,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718072594] [2024-11-16 08:41:56,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:56,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:41:56,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:56,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:41:56,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:41:56,687 INFO L87 Difference]: Start difference. First operand 9307 states and 13491 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:56,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:56,846 INFO L93 Difference]: Finished difference Result 22095 states and 32095 transitions. [2024-11-16 08:41:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:41:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2024-11-16 08:41:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:56,866 INFO L225 Difference]: With dead ends: 22095 [2024-11-16 08:41:56,867 INFO L226 Difference]: Without dead ends: 12887 [2024-11-16 08:41:56,875 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 [2024-11-16 08:41:56,876 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 362 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:56,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1180 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:41:56,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12887 states. [2024-11-16 08:41:57,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12887 to 12885. [2024-11-16 08:41:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12885 states, 12884 states have (on average 1.437441788264514) internal successors, (18520), 12884 states have internal predecessors, (18520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12885 states to 12885 states and 18520 transitions. [2024-11-16 08:41:57,085 INFO L78 Accepts]: Start accepts. Automaton has 12885 states and 18520 transitions. Word has length 209 [2024-11-16 08:41:57,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:57,086 INFO L471 AbstractCegarLoop]: Abstraction has 12885 states and 18520 transitions. [2024-11-16 08:41:57,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:57,087 INFO L276 IsEmpty]: Start isEmpty. Operand 12885 states and 18520 transitions. [2024-11-16 08:41:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:41:57,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:57,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:57,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:41:57,110 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:57,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:57,111 INFO L85 PathProgramCache]: Analyzing trace with hash 739725799, now seen corresponding path program 1 times [2024-11-16 08:41:57,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:57,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843489416] [2024-11-16 08:41:57,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:57,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:57,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843489416] [2024-11-16 08:41:57,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843489416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:57,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:57,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:41:57,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747507168] [2024-11-16 08:41:57,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:57,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:41:57,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:57,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:41:57,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:41:57,214 INFO L87 Difference]: Start difference. First operand 12885 states and 18520 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:57,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:57,680 INFO L93 Difference]: Finished difference Result 37346 states and 53696 transitions. [2024-11-16 08:41:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:41:57,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-16 08:41:57,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:57,724 INFO L225 Difference]: With dead ends: 37346 [2024-11-16 08:41:57,725 INFO L226 Difference]: Without dead ends: 25548 [2024-11-16 08:41:57,741 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 [2024-11-16 08:41:57,742 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 383 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:57,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 633 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:41:57,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25548 states. [2024-11-16 08:41:58,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25548 to 25546. [2024-11-16 08:41:58,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25546 states, 25545 states have (on average 1.4295948326482677) internal successors, (36519), 25545 states have internal predecessors, (36519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:58,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25546 states to 25546 states and 36519 transitions. [2024-11-16 08:41:58,284 INFO L78 Accepts]: Start accepts. Automaton has 25546 states and 36519 transitions. Word has length 210 [2024-11-16 08:41:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:58,284 INFO L471 AbstractCegarLoop]: Abstraction has 25546 states and 36519 transitions. [2024-11-16 08:41:58,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 25546 states and 36519 transitions. [2024-11-16 08:41:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:41:58,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:58,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:58,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:41:58,335 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:58,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1475647848, now seen corresponding path program 1 times [2024-11-16 08:41:58,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:58,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667122629] [2024-11-16 08:41:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:58,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:58,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667122629] [2024-11-16 08:41:58,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667122629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:41:58,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:41:58,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:41:58,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341660356] [2024-11-16 08:41:58,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:41:58,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:41:58,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:41:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:41:58,728 INFO L87 Difference]: Start difference. First operand 25546 states and 36519 transitions. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:41:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:59,908 INFO L93 Difference]: Finished difference Result 130056 states and 184811 transitions. [2024-11-16 08:41:59,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:41:59,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-16 08:41:59,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:00,173 INFO L225 Difference]: With dead ends: 130056 [2024-11-16 08:42:00,173 INFO L226 Difference]: Without dead ends: 113430 [2024-11-16 08:42:00,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:42:00,223 INFO L432 NwaCegarLoop]: 1135 mSDtfsCounter, 2631 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2631 SdHoareTripleChecker+Valid, 4480 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:00,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2631 Valid, 4480 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:42:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113430 states. [2024-11-16 08:42:01,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113430 to 47658. [2024-11-16 08:42:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47658 states, 47657 states have (on average 1.4178609648110456) internal successors, (67571), 47657 states have internal predecessors, (67571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:01,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47658 states to 47658 states and 67571 transitions. [2024-11-16 08:42:01,809 INFO L78 Accepts]: Start accepts. Automaton has 47658 states and 67571 transitions. Word has length 210 [2024-11-16 08:42:01,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:01,809 INFO L471 AbstractCegarLoop]: Abstraction has 47658 states and 67571 transitions. [2024-11-16 08:42:01,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 47658 states and 67571 transitions. [2024-11-16 08:42:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:42:01,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:01,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:01,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:42:01,882 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:01,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1951327025, now seen corresponding path program 1 times [2024-11-16 08:42:01,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:01,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918363504] [2024-11-16 08:42:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:01,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:02,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918363504] [2024-11-16 08:42:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918363504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:02,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:02,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:42:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801525248] [2024-11-16 08:42:02,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:02,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:42:02,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:02,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:42:02,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:42:02,211 INFO L87 Difference]: Start difference. First operand 47658 states and 67571 transitions. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:03,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:03,144 INFO L93 Difference]: Finished difference Result 149404 states and 211927 transitions. [2024-11-16 08:42:03,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:42:03,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-16 08:42:03,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:03,741 INFO L225 Difference]: With dead ends: 149404 [2024-11-16 08:42:03,742 INFO L226 Difference]: Without dead ends: 132490 [2024-11-16 08:42:03,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:42:03,813 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 2642 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:03,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 4124 Invalid, 416 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:42:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132490 states. [2024-11-16 08:42:05,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132490 to 78824. [2024-11-16 08:42:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78824 states, 78823 states have (on average 1.4093221521637085) internal successors, (111087), 78823 states have internal predecessors, (111087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78824 states to 78824 states and 111087 transitions. [2024-11-16 08:42:05,689 INFO L78 Accepts]: Start accepts. Automaton has 78824 states and 111087 transitions. Word has length 210 [2024-11-16 08:42:05,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:05,689 INFO L471 AbstractCegarLoop]: Abstraction has 78824 states and 111087 transitions. [2024-11-16 08:42:05,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 78824 states and 111087 transitions. [2024-11-16 08:42:06,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:42:06,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:06,072 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:06,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:42:06,073 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:06,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash -344099791, now seen corresponding path program 1 times [2024-11-16 08:42:06,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:06,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585664946] [2024-11-16 08:42:06,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:06,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:06,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585664946] [2024-11-16 08:42:06,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585664946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:06,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:06,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:42:06,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040148971] [2024-11-16 08:42:06,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:06,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:42:06,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:06,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:42:06,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:42:06,473 INFO L87 Difference]: Start difference. First operand 78824 states and 111087 transitions. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:07,549 INFO L93 Difference]: Finished difference Result 170122 states and 241057 transitions. [2024-11-16 08:42:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:42:07,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-16 08:42:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:07,725 INFO L225 Difference]: With dead ends: 170122 [2024-11-16 08:42:07,725 INFO L226 Difference]: Without dead ends: 152920 [2024-11-16 08:42:07,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:42:07,754 INFO L432 NwaCegarLoop]: 1422 mSDtfsCounter, 2503 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:07,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 4519 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:42:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152920 states. [2024-11-16 08:42:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152920 to 100040. [2024-11-16 08:42:09,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100040 states, 100039 states have (on average 1.4089804976059337) internal successors, (140953), 100039 states have internal predecessors, (140953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:09,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100040 states to 100040 states and 140953 transitions. [2024-11-16 08:42:09,489 INFO L78 Accepts]: Start accepts. Automaton has 100040 states and 140953 transitions. Word has length 210 [2024-11-16 08:42:09,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:09,489 INFO L471 AbstractCegarLoop]: Abstraction has 100040 states and 140953 transitions. [2024-11-16 08:42:09,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:09,489 INFO L276 IsEmpty]: Start isEmpty. Operand 100040 states and 140953 transitions. [2024-11-16 08:42:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:42:09,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:09,590 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:09,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:42:09,591 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:09,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1044330249, now seen corresponding path program 1 times [2024-11-16 08:42:09,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740098585] [2024-11-16 08:42:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:10,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:10,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:10,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740098585] [2024-11-16 08:42:10,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740098585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:10,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:10,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:42:10,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408115998] [2024-11-16 08:42:10,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:10,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:42:10,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:10,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:42:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:42:10,376 INFO L87 Difference]: Start difference. First operand 100040 states and 140953 transitions. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:11,201 INFO L93 Difference]: Finished difference Result 191624 states and 271287 transitions. [2024-11-16 08:42:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:42:11,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-16 08:42:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:11,417 INFO L225 Difference]: With dead ends: 191624 [2024-11-16 08:42:11,417 INFO L226 Difference]: Without dead ends: 174158 [2024-11-16 08:42:11,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:42:11,487 INFO L432 NwaCegarLoop]: 1473 mSDtfsCounter, 2661 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2661 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:11,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 4744 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:42:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174158 states. [2024-11-16 08:42:13,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174158 to 121517. [2024-11-16 08:42:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121517 states, 121516 states have (on average 1.4087198393627176) internal successors, (171182), 121516 states have internal predecessors, (171182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:14,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121517 states to 121517 states and 171182 transitions. [2024-11-16 08:42:14,231 INFO L78 Accepts]: Start accepts. Automaton has 121517 states and 171182 transitions. Word has length 210 [2024-11-16 08:42:14,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:14,231 INFO L471 AbstractCegarLoop]: Abstraction has 121517 states and 171182 transitions. [2024-11-16 08:42:14,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:14,232 INFO L276 IsEmpty]: Start isEmpty. Operand 121517 states and 171182 transitions. [2024-11-16 08:42:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 08:42:14,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:14,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:14,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:42:14,357 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:14,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:14,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1122183697, now seen corresponding path program 1 times [2024-11-16 08:42:14,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:14,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006444997] [2024-11-16 08:42:14,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:14,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:14,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:14,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006444997] [2024-11-16 08:42:14,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006444997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:14,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:14,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:42:14,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991311373] [2024-11-16 08:42:14,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:14,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:42:14,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:42:14,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:42:14,681 INFO L87 Difference]: Start difference. First operand 121517 states and 171182 transitions. Second operand has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:15,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:15,725 INFO L93 Difference]: Finished difference Result 201514 states and 285383 transitions. [2024-11-16 08:42:15,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:42:15,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-16 08:42:15,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:15,959 INFO L225 Difference]: With dead ends: 201514 [2024-11-16 08:42:15,959 INFO L226 Difference]: Without dead ends: 189360 [2024-11-16 08:42:16,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:42:16,604 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 2430 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 4805 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:16,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2430 Valid, 4805 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:42:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189360 states. [2024-11-16 08:42:18,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189360 to 136719. [2024-11-16 08:42:18,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136719 states, 136718 states have (on average 1.4101873930279847) internal successors, (192798), 136718 states have internal predecessors, (192798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:19,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136719 states to 136719 states and 192798 transitions. [2024-11-16 08:42:19,392 INFO L78 Accepts]: Start accepts. Automaton has 136719 states and 192798 transitions. Word has length 210 [2024-11-16 08:42:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:19,393 INFO L471 AbstractCegarLoop]: Abstraction has 136719 states and 192798 transitions. [2024-11-16 08:42:19,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:19,393 INFO L276 IsEmpty]: Start isEmpty. Operand 136719 states and 192798 transitions. [2024-11-16 08:42:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-16 08:42:19,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:19,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:19,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:42:19,603 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:19,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:19,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2109732949, now seen corresponding path program 1 times [2024-11-16 08:42:19,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:19,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989442947] [2024-11-16 08:42:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:19,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:19,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:19,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:19,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989442947] [2024-11-16 08:42:19,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989442947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:19,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:19,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:42:19,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553842363] [2024-11-16 08:42:19,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:19,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:42:19,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:19,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:42:19,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:42:19,830 INFO L87 Difference]: Start difference. First operand 136719 states and 192798 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:20,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:20,285 INFO L93 Difference]: Finished difference Result 186467 states and 264624 transitions. [2024-11-16 08:42:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:42:20,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-16 08:42:20,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:20,369 INFO L225 Difference]: With dead ends: 186467 [2024-11-16 08:42:20,369 INFO L226 Difference]: Without dead ends: 69087 [2024-11-16 08:42:20,432 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 [2024-11-16 08:42:20,433 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 198 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:20,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 802 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:42:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69087 states. [2024-11-16 08:42:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69087 to 69085. [2024-11-16 08:42:22,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69085 states, 69084 states have (on average 1.4177523015459441) internal successors, (97944), 69084 states have internal predecessors, (97944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:22,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69085 states to 69085 states and 97944 transitions. [2024-11-16 08:42:22,121 INFO L78 Accepts]: Start accepts. Automaton has 69085 states and 97944 transitions. Word has length 212 [2024-11-16 08:42:22,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:22,122 INFO L471 AbstractCegarLoop]: Abstraction has 69085 states and 97944 transitions. [2024-11-16 08:42:22,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 69085 states and 97944 transitions. [2024-11-16 08:42:22,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-16 08:42:22,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:22,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:22,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:42:22,172 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:22,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1073793965, now seen corresponding path program 1 times [2024-11-16 08:42:22,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:22,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847851204] [2024-11-16 08:42:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:22,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:22,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:22,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847851204] [2024-11-16 08:42:22,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847851204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:22,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:22,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:42:22,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476498887] [2024-11-16 08:42:22,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:22,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:42:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:22,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:42:22,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:42:22,839 INFO L87 Difference]: Start difference. First operand 69085 states and 97944 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:23,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:23,075 INFO L93 Difference]: Finished difference Result 98957 states and 140640 transitions. [2024-11-16 08:42:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:42:23,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-16 08:42:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:23,121 INFO L225 Difference]: With dead ends: 98957 [2024-11-16 08:42:23,122 INFO L226 Difference]: Without dead ends: 35303 [2024-11-16 08:42:23,160 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 [2024-11-16 08:42:23,161 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 184 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:23,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 757 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:42:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35303 states. [2024-11-16 08:42:23,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35303 to 35301. [2024-11-16 08:42:23,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35301 states, 35300 states have (on average 1.408101983002833) internal successors, (49706), 35300 states have internal predecessors, (49706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35301 states to 35301 states and 49706 transitions. [2024-11-16 08:42:23,564 INFO L78 Accepts]: Start accepts. Automaton has 35301 states and 49706 transitions. Word has length 212 [2024-11-16 08:42:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:23,565 INFO L471 AbstractCegarLoop]: Abstraction has 35301 states and 49706 transitions. [2024-11-16 08:42:23,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:23,565 INFO L276 IsEmpty]: Start isEmpty. Operand 35301 states and 49706 transitions. [2024-11-16 08:42:23,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-16 08:42:23,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:23,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:23,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:42:23,583 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:23,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:23,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1987617588, now seen corresponding path program 1 times [2024-11-16 08:42:23,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:23,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087721577] [2024-11-16 08:42:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:23,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:23,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:23,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087721577] [2024-11-16 08:42:23,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087721577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:23,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:23,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:42:23,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522322348] [2024-11-16 08:42:23,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:23,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:42:23,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:23,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:42:23,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:42:23,743 INFO L87 Difference]: Start difference. First operand 35301 states and 49706 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:24,255 INFO L93 Difference]: Finished difference Result 49965 states and 70596 transitions. [2024-11-16 08:42:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:42:24,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-16 08:42:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:24,272 INFO L225 Difference]: With dead ends: 49965 [2024-11-16 08:42:24,272 INFO L226 Difference]: Without dead ends: 18053 [2024-11-16 08:42:24,283 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 [2024-11-16 08:42:24,284 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 170 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:24,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 712 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:42:24,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18053 states. [2024-11-16 08:42:24,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18053 to 18051. [2024-11-16 08:42:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18051 states, 18050 states have (on average 1.3961218836565097) internal successors, (25200), 18050 states have internal predecessors, (25200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18051 states to 18051 states and 25200 transitions. [2024-11-16 08:42:24,467 INFO L78 Accepts]: Start accepts. Automaton has 18051 states and 25200 transitions. Word has length 212 [2024-11-16 08:42:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:24,467 INFO L471 AbstractCegarLoop]: Abstraction has 18051 states and 25200 transitions. [2024-11-16 08:42:24,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 18051 states and 25200 transitions. [2024-11-16 08:42:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-16 08:42:24,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:24,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:24,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:42:24,478 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:24,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:24,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1796247243, now seen corresponding path program 1 times [2024-11-16 08:42:24,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:24,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532991512] [2024-11-16 08:42:24,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:24,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:24,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:24,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:24,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532991512] [2024-11-16 08:42:24,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532991512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:24,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:24,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:42:24,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947090771] [2024-11-16 08:42:24,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:24,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:42:24,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:24,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:42:24,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:42:24,637 INFO L87 Difference]: Start difference. First operand 18051 states and 25200 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:24,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:24,710 INFO L93 Difference]: Finished difference Result 25179 states and 35288 transitions. [2024-11-16 08:42:24,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:42:24,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-16 08:42:24,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:24,722 INFO L225 Difference]: With dead ends: 25179 [2024-11-16 08:42:24,722 INFO L226 Difference]: Without dead ends: 9311 [2024-11-16 08:42:24,733 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 [2024-11-16 08:42:24,733 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 158 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:24,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 667 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:42:24,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9311 states. [2024-11-16 08:42:24,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9311 to 9309. [2024-11-16 08:42:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9309 states, 9308 states have (on average 1.3828964331757627) internal successors, (12872), 9308 states have internal predecessors, (12872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9309 states to 9309 states and 12872 transitions. [2024-11-16 08:42:24,848 INFO L78 Accepts]: Start accepts. Automaton has 9309 states and 12872 transitions. Word has length 212 [2024-11-16 08:42:24,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:24,848 INFO L471 AbstractCegarLoop]: Abstraction has 9309 states and 12872 transitions. [2024-11-16 08:42:24,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:24,849 INFO L276 IsEmpty]: Start isEmpty. Operand 9309 states and 12872 transitions. [2024-11-16 08:42:24,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-16 08:42:24,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:24,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:24,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:42:24,856 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:24,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1393921748, now seen corresponding path program 1 times [2024-11-16 08:42:24,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:24,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993753753] [2024-11-16 08:42:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:24,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:25,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:25,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993753753] [2024-11-16 08:42:25,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993753753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:25,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:25,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:42:25,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278051604] [2024-11-16 08:42:25,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:25,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:42:25,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:25,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:42:25,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:42:25,028 INFO L87 Difference]: Start difference. First operand 9309 states and 12872 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:25,065 INFO L93 Difference]: Finished difference Result 12754 states and 17711 transitions. [2024-11-16 08:42:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:42:25,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-16 08:42:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:25,070 INFO L225 Difference]: With dead ends: 12754 [2024-11-16 08:42:25,070 INFO L226 Difference]: Without dead ends: 4895 [2024-11-16 08:42:25,073 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 [2024-11-16 08:42:25,074 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 156 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:25,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 622 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:42:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4895 states. [2024-11-16 08:42:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4895 to 4893. [2024-11-16 08:42:25,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4893 states, 4892 states have (on average 1.3683565004088307) internal successors, (6694), 4892 states have internal predecessors, (6694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4893 states to 4893 states and 6694 transitions. [2024-11-16 08:42:25,113 INFO L78 Accepts]: Start accepts. Automaton has 4893 states and 6694 transitions. Word has length 212 [2024-11-16 08:42:25,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:25,114 INFO L471 AbstractCegarLoop]: Abstraction has 4893 states and 6694 transitions. [2024-11-16 08:42:25,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:25,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4893 states and 6694 transitions. [2024-11-16 08:42:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-16 08:42:25,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:25,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:25,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:42:25,117 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:25,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash -625578734, now seen corresponding path program 1 times [2024-11-16 08:42:25,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:25,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595689419] [2024-11-16 08:42:25,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:25,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:25,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:25,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595689419] [2024-11-16 08:42:25,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595689419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:25,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:25,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:42:25,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287804035] [2024-11-16 08:42:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:25,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:42:25,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:25,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:42:25,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:42:25,715 INFO L87 Difference]: Start difference. First operand 4893 states and 6694 transitions. Second operand has 10 states, 10 states have (on average 21.2) internal successors, (212), 9 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:26,596 INFO L93 Difference]: Finished difference Result 15569 states and 21238 transitions. [2024-11-16 08:42:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:42:26,597 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.2) internal successors, (212), 9 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-16 08:42:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:26,608 INFO L225 Difference]: With dead ends: 15569 [2024-11-16 08:42:26,609 INFO L226 Difference]: Without dead ends: 10745 [2024-11-16 08:42:26,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:42:26,616 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 988 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:26,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1649 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:42:26,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2024-11-16 08:42:26,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 10620. [2024-11-16 08:42:26,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10620 states, 10619 states have (on average 1.3547415010829644) internal successors, (14386), 10619 states have internal predecessors, (14386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:26,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 14386 transitions. [2024-11-16 08:42:26,728 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 14386 transitions. Word has length 212 [2024-11-16 08:42:26,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:26,729 INFO L471 AbstractCegarLoop]: Abstraction has 10620 states and 14386 transitions. [2024-11-16 08:42:26,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.2) internal successors, (212), 9 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:26,729 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 14386 transitions. [2024-11-16 08:42:26,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-16 08:42:26,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:26,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:26,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:42:26,736 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:26,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:26,736 INFO L85 PathProgramCache]: Analyzing trace with hash 583594633, now seen corresponding path program 1 times [2024-11-16 08:42:26,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:26,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344363427] [2024-11-16 08:42:26,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:26,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:27,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:27,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344363427] [2024-11-16 08:42:27,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344363427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:27,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:27,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:42:27,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137997029] [2024-11-16 08:42:27,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:27,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:42:27,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:27,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:42:27,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:42:27,190 INFO L87 Difference]: Start difference. First operand 10620 states and 14386 transitions. Second operand has 10 states, 10 states have (on average 21.3) internal successors, (213), 9 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:27,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:27,873 INFO L93 Difference]: Finished difference Result 31368 states and 42416 transitions. [2024-11-16 08:42:27,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:42:27,874 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.3) internal successors, (213), 9 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-11-16 08:42:27,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:27,893 INFO L225 Difference]: With dead ends: 31368 [2024-11-16 08:42:27,893 INFO L226 Difference]: Without dead ends: 20835 [2024-11-16 08:42:27,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:42:27,903 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 2504 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2504 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:27,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2504 Valid, 1209 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:42:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20835 states. [2024-11-16 08:42:28,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20835 to 20479. [2024-11-16 08:42:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20479 states, 20478 states have (on average 1.348325031741381) internal successors, (27611), 20478 states have internal predecessors, (27611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20479 states to 20479 states and 27611 transitions. [2024-11-16 08:42:28,223 INFO L78 Accepts]: Start accepts. Automaton has 20479 states and 27611 transitions. Word has length 213 [2024-11-16 08:42:28,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:28,224 INFO L471 AbstractCegarLoop]: Abstraction has 20479 states and 27611 transitions. [2024-11-16 08:42:28,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.3) internal successors, (213), 9 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 20479 states and 27611 transitions. [2024-11-16 08:42:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-16 08:42:28,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:28,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:28,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:42:28,246 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:28,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:28,246 INFO L85 PathProgramCache]: Analyzing trace with hash -751146263, now seen corresponding path program 1 times [2024-11-16 08:42:28,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:28,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887725452] [2024-11-16 08:42:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:28,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:28,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:28,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887725452] [2024-11-16 08:42:28,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887725452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:28,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:28,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:42:28,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168427830] [2024-11-16 08:42:28,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:28,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:42:28,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:28,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:42:28,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:42:28,798 INFO L87 Difference]: Start difference. First operand 20479 states and 27611 transitions. Second operand has 10 states, 10 states have (on average 21.3) internal successors, (213), 9 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:29,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:29,645 INFO L93 Difference]: Finished difference Result 50312 states and 67952 transitions. [2024-11-16 08:42:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:42:29,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.3) internal successors, (213), 9 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2024-11-16 08:42:29,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:29,684 INFO L225 Difference]: With dead ends: 50312 [2024-11-16 08:42:29,685 INFO L226 Difference]: Without dead ends: 31269 [2024-11-16 08:42:29,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:42:29,703 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 1764 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:29,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 1234 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:42:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31269 states. [2024-11-16 08:42:30,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31269 to 22878. [2024-11-16 08:42:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22878 states, 22877 states have (on average 1.3418717489181273) internal successors, (30698), 22877 states have internal predecessors, (30698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22878 states to 22878 states and 30698 transitions. [2024-11-16 08:42:30,074 INFO L78 Accepts]: Start accepts. Automaton has 22878 states and 30698 transitions. Word has length 213 [2024-11-16 08:42:30,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:30,074 INFO L471 AbstractCegarLoop]: Abstraction has 22878 states and 30698 transitions. [2024-11-16 08:42:30,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.3) internal successors, (213), 9 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:30,074 INFO L276 IsEmpty]: Start isEmpty. Operand 22878 states and 30698 transitions. [2024-11-16 08:42:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-16 08:42:30,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:30,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:30,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:42:30,139 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:30,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1431280435, now seen corresponding path program 1 times [2024-11-16 08:42:30,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:30,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938185574] [2024-11-16 08:42:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:30,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:30,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938185574] [2024-11-16 08:42:30,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938185574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:30,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:30,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:42:30,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826046198] [2024-11-16 08:42:30,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:30,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:42:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:42:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:42:30,224 INFO L87 Difference]: Start difference. First operand 22878 states and 30698 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:30,429 INFO L93 Difference]: Finished difference Result 45028 states and 60496 transitions. [2024-11-16 08:42:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:42:30,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-11-16 08:42:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:30,455 INFO L225 Difference]: With dead ends: 45028 [2024-11-16 08:42:30,455 INFO L226 Difference]: Without dead ends: 22225 [2024-11-16 08:42:30,472 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 [2024-11-16 08:42:30,473 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 233 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:30,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 391 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:42:30,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22225 states. [2024-11-16 08:42:30,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22225 to 22225. [2024-11-16 08:42:30,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22225 states, 22224 states have (on average 1.3363030957523399) internal successors, (29698), 22224 states have internal predecessors, (29698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22225 states to 22225 states and 29698 transitions. [2024-11-16 08:42:30,710 INFO L78 Accepts]: Start accepts. Automaton has 22225 states and 29698 transitions. Word has length 214 [2024-11-16 08:42:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:30,710 INFO L471 AbstractCegarLoop]: Abstraction has 22225 states and 29698 transitions. [2024-11-16 08:42:30,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:30,710 INFO L276 IsEmpty]: Start isEmpty. Operand 22225 states and 29698 transitions. [2024-11-16 08:42:30,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-16 08:42:30,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:30,724 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:30,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:42:30,724 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:30,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:30,725 INFO L85 PathProgramCache]: Analyzing trace with hash 967902728, now seen corresponding path program 1 times [2024-11-16 08:42:30,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:30,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017180234] [2024-11-16 08:42:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:30,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:31,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:31,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017180234] [2024-11-16 08:42:31,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017180234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:31,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:31,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:42:31,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243542217] [2024-11-16 08:42:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:31,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:42:31,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:42:31,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:42:31,142 INFO L87 Difference]: Start difference. First operand 22225 states and 29698 transitions. Second operand has 10 states, 10 states have (on average 21.4) internal successors, (214), 9 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:31,776 INFO L93 Difference]: Finished difference Result 66738 states and 88834 transitions. [2024-11-16 08:42:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 08:42:31,776 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.4) internal successors, (214), 9 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-11-16 08:42:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:31,815 INFO L225 Difference]: With dead ends: 66738 [2024-11-16 08:42:31,815 INFO L226 Difference]: Without dead ends: 44616 [2024-11-16 08:42:31,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:42:31,836 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 1004 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:31,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1206 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:42:31,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44616 states. [2024-11-16 08:42:32,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44616 to 44020. [2024-11-16 08:42:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44020 states, 44019 states have (on average 1.3218837320248076) internal successors, (58188), 44019 states have internal predecessors, (58188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44020 states to 44020 states and 58188 transitions. [2024-11-16 08:42:32,341 INFO L78 Accepts]: Start accepts. Automaton has 44020 states and 58188 transitions. Word has length 214 [2024-11-16 08:42:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:32,341 INFO L471 AbstractCegarLoop]: Abstraction has 44020 states and 58188 transitions. [2024-11-16 08:42:32,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.4) internal successors, (214), 9 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 44020 states and 58188 transitions. [2024-11-16 08:42:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:42:32,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:32,369 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:32,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:42:32,370 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:32,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:32,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1953678563, now seen corresponding path program 1 times [2024-11-16 08:42:32,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:32,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351398810] [2024-11-16 08:42:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:32,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:32,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351398810] [2024-11-16 08:42:32,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351398810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:32,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:32,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:42:32,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873146444] [2024-11-16 08:42:32,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:32,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:42:32,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:32,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:42:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:42:32,805 INFO L87 Difference]: Start difference. First operand 44020 states and 58188 transitions. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:33,715 INFO L93 Difference]: Finished difference Result 127710 states and 168535 transitions. [2024-11-16 08:42:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:42:33,716 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2024-11-16 08:42:33,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:33,794 INFO L225 Difference]: With dead ends: 127710 [2024-11-16 08:42:33,794 INFO L226 Difference]: Without dead ends: 83781 [2024-11-16 08:42:33,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:42:33,811 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1140 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:33,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1262 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:42:33,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83781 states. [2024-11-16 08:42:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83781 to 82375. [2024-11-16 08:42:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82375 states, 82374 states have (on average 1.3165561949158715) internal successors, (108450), 82374 states have internal predecessors, (108450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:34,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82375 states to 82375 states and 108450 transitions. [2024-11-16 08:42:34,883 INFO L78 Accepts]: Start accepts. Automaton has 82375 states and 108450 transitions. Word has length 215 [2024-11-16 08:42:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:34,883 INFO L471 AbstractCegarLoop]: Abstraction has 82375 states and 108450 transitions. [2024-11-16 08:42:34,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 82375 states and 108450 transitions. [2024-11-16 08:42:34,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:42:34,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:34,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:34,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:42:34,936 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:34,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:34,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1510246461, now seen corresponding path program 1 times [2024-11-16 08:42:34,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:34,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570833433] [2024-11-16 08:42:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:34,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:35,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:35,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570833433] [2024-11-16 08:42:35,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570833433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:35,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:35,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:42:35,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539973095] [2024-11-16 08:42:35,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:35,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:42:35,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:35,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:42:35,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:42:35,323 INFO L87 Difference]: Start difference. First operand 82375 states and 108450 transitions. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:36,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:36,316 INFO L93 Difference]: Finished difference Result 142115 states and 187606 transitions. [2024-11-16 08:42:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:42:36,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2024-11-16 08:42:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:36,427 INFO L225 Difference]: With dead ends: 142115 [2024-11-16 08:42:36,428 INFO L226 Difference]: Without dead ends: 100865 [2024-11-16 08:42:36,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:42:36,472 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 1437 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:36,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 1612 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:42:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100865 states. [2024-11-16 08:42:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100865 to 99779. [2024-11-16 08:42:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99779 states, 99778 states have (on average 1.3073022109082162) internal successors, (130440), 99778 states have internal predecessors, (130440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99779 states to 99779 states and 130440 transitions. [2024-11-16 08:42:38,291 INFO L78 Accepts]: Start accepts. Automaton has 99779 states and 130440 transitions. Word has length 215 [2024-11-16 08:42:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:38,291 INFO L471 AbstractCegarLoop]: Abstraction has 99779 states and 130440 transitions. [2024-11-16 08:42:38,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:38,292 INFO L276 IsEmpty]: Start isEmpty. Operand 99779 states and 130440 transitions. [2024-11-16 08:42:38,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 08:42:38,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:38,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:38,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:42:38,360 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:38,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:38,360 INFO L85 PathProgramCache]: Analyzing trace with hash -303227446, now seen corresponding path program 1 times [2024-11-16 08:42:38,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:38,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815326474] [2024-11-16 08:42:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:38,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:39,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:39,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815326474] [2024-11-16 08:42:39,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815326474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:39,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:39,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:42:39,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615643326] [2024-11-16 08:42:39,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:39,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:42:39,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:39,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:42:39,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:42:39,208 INFO L87 Difference]: Start difference. First operand 99779 states and 130440 transitions. Second operand has 13 states, 13 states have (on average 16.615384615384617) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:41,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:41,150 INFO L93 Difference]: Finished difference Result 159773 states and 210294 transitions. [2024-11-16 08:42:41,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:42:41,150 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.615384615384617) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2024-11-16 08:42:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:41,299 INFO L225 Difference]: With dead ends: 159773 [2024-11-16 08:42:41,299 INFO L226 Difference]: Without dead ends: 125847 [2024-11-16 08:42:41,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:42:41,351 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 1593 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:41,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 2307 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 08:42:41,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125847 states. [2024-11-16 08:42:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125847 to 77680. [2024-11-16 08:42:42,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77680 states, 77679 states have (on average 1.307908186253685) internal successors, (101597), 77679 states have internal predecessors, (101597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77680 states to 77680 states and 101597 transitions. [2024-11-16 08:42:42,674 INFO L78 Accepts]: Start accepts. Automaton has 77680 states and 101597 transitions. Word has length 216 [2024-11-16 08:42:42,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:42,674 INFO L471 AbstractCegarLoop]: Abstraction has 77680 states and 101597 transitions. [2024-11-16 08:42:42,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.615384615384617) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:42,674 INFO L276 IsEmpty]: Start isEmpty. Operand 77680 states and 101597 transitions. [2024-11-16 08:42:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 08:42:42,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:42,724 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:42,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:42:42,724 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:42,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:42,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1718440379, now seen corresponding path program 1 times [2024-11-16 08:42:42,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:42,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984568662] [2024-11-16 08:42:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:43,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:43,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984568662] [2024-11-16 08:42:43,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984568662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:43,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:43,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 08:42:43,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809239762] [2024-11-16 08:42:43,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:43,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:42:43,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:43,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:42:43,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:42:43,850 INFO L87 Difference]: Start difference. First operand 77680 states and 101597 transitions. Second operand has 12 states, 12 states have (on average 18.0) internal successors, (216), 11 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:45,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:45,188 INFO L93 Difference]: Finished difference Result 141572 states and 187783 transitions. [2024-11-16 08:42:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:42:45,188 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 18.0) internal successors, (216), 11 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2024-11-16 08:42:45,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:45,278 INFO L225 Difference]: With dead ends: 141572 [2024-11-16 08:42:45,278 INFO L226 Difference]: Without dead ends: 90436 [2024-11-16 08:42:45,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-16 08:42:45,321 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1574 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:45,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 2415 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 08:42:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90436 states. [2024-11-16 08:42:46,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90436 to 57721. [2024-11-16 08:42:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57721 states, 57720 states have (on average 1.3238738738738738) internal successors, (76414), 57720 states have internal predecessors, (76414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57721 states to 57721 states and 76414 transitions. [2024-11-16 08:42:46,297 INFO L78 Accepts]: Start accepts. Automaton has 57721 states and 76414 transitions. Word has length 216 [2024-11-16 08:42:46,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:46,298 INFO L471 AbstractCegarLoop]: Abstraction has 57721 states and 76414 transitions. [2024-11-16 08:42:46,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.0) internal successors, (216), 11 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 57721 states and 76414 transitions. [2024-11-16 08:42:46,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 08:42:46,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:46,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:46,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:42:46,327 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:46,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:46,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2030049198, now seen corresponding path program 1 times [2024-11-16 08:42:46,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:46,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201643576] [2024-11-16 08:42:46,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:46,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:47,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:47,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201643576] [2024-11-16 08:42:47,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201643576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 08:42:47,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554602568] [2024-11-16 08:42:47,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:47,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 08:42:47,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:47,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 08:42:47,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:42:47,677 INFO L87 Difference]: Start difference. First operand 57721 states and 76414 transitions. Second operand has 17 states, 17 states have (on average 12.705882352941176) internal successors, (216), 16 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:49,469 INFO L93 Difference]: Finished difference Result 108890 states and 144651 transitions. [2024-11-16 08:42:49,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 08:42:49,469 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 12.705882352941176) internal successors, (216), 16 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2024-11-16 08:42:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:49,551 INFO L225 Difference]: With dead ends: 108890 [2024-11-16 08:42:49,551 INFO L226 Difference]: Without dead ends: 85862 [2024-11-16 08:42:49,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=407, Invalid=1233, Unknown=0, NotChecked=0, Total=1640 [2024-11-16 08:42:49,585 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 2481 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:49,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 2728 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:42:49,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85862 states. [2024-11-16 08:42:50,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85862 to 57781. [2024-11-16 08:42:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57781 states, 57780 states have (on average 1.3239529248875044) internal successors, (76498), 57780 states have internal predecessors, (76498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:50,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57781 states to 57781 states and 76498 transitions. [2024-11-16 08:42:50,532 INFO L78 Accepts]: Start accepts. Automaton has 57781 states and 76498 transitions. Word has length 216 [2024-11-16 08:42:50,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:50,532 INFO L471 AbstractCegarLoop]: Abstraction has 57781 states and 76498 transitions. [2024-11-16 08:42:50,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.705882352941176) internal successors, (216), 16 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 57781 states and 76498 transitions. [2024-11-16 08:42:50,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 08:42:50,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:50,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:50,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:42:50,560 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:50,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:50,561 INFO L85 PathProgramCache]: Analyzing trace with hash 11144347, now seen corresponding path program 1 times [2024-11-16 08:42:50,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:50,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808753376] [2024-11-16 08:42:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:50,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:51,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:51,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808753376] [2024-11-16 08:42:51,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808753376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:51,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:51,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:42:51,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190409088] [2024-11-16 08:42:51,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:51,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:42:51,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:51,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:42:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:42:51,524 INFO L87 Difference]: Start difference. First operand 57781 states and 76498 transitions. Second operand has 12 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:52,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:42:52,174 INFO L93 Difference]: Finished difference Result 76255 states and 101088 transitions. [2024-11-16 08:42:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:42:52,175 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2024-11-16 08:42:52,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:42:52,233 INFO L225 Difference]: With dead ends: 76255 [2024-11-16 08:42:52,234 INFO L226 Difference]: Without dead ends: 57853 [2024-11-16 08:42:52,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2024-11-16 08:42:52,257 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 1765 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:42:52,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 2188 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:42:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57853 states. [2024-11-16 08:42:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57853 to 57851. [2024-11-16 08:42:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57851 states, 57850 states have (on average 1.3241659464131375) internal successors, (76603), 57850 states have internal predecessors, (76603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57851 states to 57851 states and 76603 transitions. [2024-11-16 08:42:53,255 INFO L78 Accepts]: Start accepts. Automaton has 57851 states and 76603 transitions. Word has length 216 [2024-11-16 08:42:53,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:42:53,255 INFO L471 AbstractCegarLoop]: Abstraction has 57851 states and 76603 transitions. [2024-11-16 08:42:53,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.0) internal successors, (216), 12 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:42:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 57851 states and 76603 transitions. [2024-11-16 08:42:53,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-16 08:42:53,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:42:53,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:42:53,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 08:42:53,284 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:42:53,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:42:53,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1203348833, now seen corresponding path program 1 times [2024-11-16 08:42:53,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:42:53,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173734299] [2024-11-16 08:42:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:42:53,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:42:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:42:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:42:53,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:42:53,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173734299] [2024-11-16 08:42:53,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173734299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:42:53,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:42:53,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 08:42:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988285892] [2024-11-16 08:42:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:42:53,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:42:53,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:42:53,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:42:53,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:42:53,924 INFO L87 Difference]: Start difference. First operand 57851 states and 76603 transitions. Second operand has 12 states, 12 states have (on average 18.083333333333332) internal successors, (217), 11 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)