./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-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-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c5b756d724a9cd5d9c89c4b12a854260c3278a67df891fb3233689095aa59ca --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:36:34,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:36:35,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:36:35,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:36:35,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:36:35,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:36:35,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:36:35,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:36:35,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:36:35,073 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:36:35,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:36:35,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:36:35,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:36:35,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:36:35,075 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:36:35,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:36:35,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:36:35,078 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:36:35,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:36:35,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:36:35,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:36:35,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:36:35,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:36:35,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:36:35,082 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:36:35,082 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:36:35,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:36:35,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:36:35,083 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:36:35,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:36:35,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:36:35,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:36:35,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:36:35,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:36:35,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:36:35,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:36:35,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:36:35,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:36:35,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:36:35,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:36:35,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:36:35,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:36:35,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c5b756d724a9cd5d9c89c4b12a854260c3278a67df891fb3233689095aa59ca [2024-11-16 08:36:35,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:36:35,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:36:35,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:36:35,374 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:36:35,375 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:36:35,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-16 08:36:36,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:36:37,142 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:36:37,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-16 08:36:37,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bedb8b7b6/e6a1d701335a4b20b6076c008f9c4e53/FLAG71ca566a0 [2024-11-16 08:36:37,480 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bedb8b7b6/e6a1d701335a4b20b6076c008f9c4e53 [2024-11-16 08:36:37,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:36:37,484 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:36:37,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:36:37,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:36:37,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:36:37,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:37,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726078ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37, skipping insertion in model container [2024-11-16 08:36:37,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:37,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:36:37,840 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6320,6333] [2024-11-16 08:36:37,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:36:37,889 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:36:37,932 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6320,6333] [2024-11-16 08:36:37,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:36:37,983 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:36:37,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37 WrapperNode [2024-11-16 08:36:37,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:36:37,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:36:37,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:36:37,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:36:37,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,036 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 577 [2024-11-16 08:36:38,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:36:38,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:36:38,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:36:38,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:36:38,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,073 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 08:36:38,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,090 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:36:38,111 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:36:38,111 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:36:38,111 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:36:38,112 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (1/1) ... [2024-11-16 08:36:38,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:36:38,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:36:38,155 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 08:36:38,159 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 08:36:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:36:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:36:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:36:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:36:38,353 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:36:38,356 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:36:38,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L250: havoc main_~node4__m4~0#1; [2024-11-16 08:36:38,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L631: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:38,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L268: havoc main_~node5__m5~0#1; [2024-11-16 08:36:38,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L318: 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 08:36:38,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L401: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L487: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L573: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L459: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L214: havoc main_~node2__m2~0#1; [2024-11-16 08:36:38,916 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L545: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:36:38,916 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L232: havoc main_~node3__m3~0#1; [2024-11-16 08:36:38,916 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-16 08:36:38,952 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-16 08:36:38,952 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:36:38,973 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:36:38,974 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:36:38,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:36:38 BoogieIcfgContainer [2024-11-16 08:36:38,974 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:36:38,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:36:38,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:36:38,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:36:38,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:36:37" (1/3) ... [2024-11-16 08:36:38,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a25e587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:36:38, skipping insertion in model container [2024-11-16 08:36:38,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:36:37" (2/3) ... [2024-11-16 08:36:38,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a25e587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:36:38, skipping insertion in model container [2024-11-16 08:36:38,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:36:38" (3/3) ... [2024-11-16 08:36:38,984 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-16 08:36:39,000 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:36:39,000 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:36:39,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:36:39,072 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;@2155ee70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:36:39,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:36:39,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.6619718309859155) internal successors, (236), 143 states have internal predecessors, (236), 0 states have call successors, (0), 0 states 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 08:36:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-16 08:36:39,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:39,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:39,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:39,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash 439474289, now seen corresponding path program 1 times [2024-11-16 08:36:39,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:39,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601657182] [2024-11-16 08:36:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:39,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:39,718 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 08:36:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601657182] [2024-11-16 08:36:39,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601657182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:39,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:39,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:39,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534160198] [2024-11-16 08:36:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:39,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:39,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:39,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:39,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:39,763 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.6619718309859155) internal successors, (236), 143 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:39,854 INFO L93 Difference]: Finished difference Result 343 states and 543 transitions. [2024-11-16 08:36:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:39,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-16 08:36:39,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:39,872 INFO L225 Difference]: With dead ends: 343 [2024-11-16 08:36:39,872 INFO L226 Difference]: Without dead ends: 228 [2024-11-16 08:36:39,876 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 08:36:39,881 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 179 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:39,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 523 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-16 08:36:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2024-11-16 08:36:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4755555555555555) internal successors, (332), 225 states have internal predecessors, (332), 0 states have call successors, (0), 0 states 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 08:36:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 332 transitions. [2024-11-16 08:36:39,943 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 332 transitions. Word has length 61 [2024-11-16 08:36:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:39,944 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 332 transitions. [2024-11-16 08:36:39,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:39,944 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 332 transitions. [2024-11-16 08:36:39,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 08:36:39,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:39,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:39,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:36:39,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:39,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:39,948 INFO L85 PathProgramCache]: Analyzing trace with hash 199044836, now seen corresponding path program 1 times [2024-11-16 08:36:39,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:39,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277137396] [2024-11-16 08:36:39,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:39,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:40,111 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 08:36:40,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:40,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277137396] [2024-11-16 08:36:40,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277137396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:40,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:40,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:40,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267947095] [2024-11-16 08:36:40,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:40,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:40,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:40,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:40,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:40,118 INFO L87 Difference]: Start difference. First operand 226 states and 332 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:40,165 INFO L93 Difference]: Finished difference Result 574 states and 872 transitions. [2024-11-16 08:36:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:40,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-16 08:36:40,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:40,169 INFO L225 Difference]: With dead ends: 574 [2024-11-16 08:36:40,169 INFO L226 Difference]: Without dead ends: 383 [2024-11-16 08:36:40,170 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 08:36:40,171 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 144 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:40,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 462 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-16 08:36:40,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2024-11-16 08:36:40,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.5052631578947369) internal successors, (572), 380 states have internal predecessors, (572), 0 states have call successors, (0), 0 states 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 08:36:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 572 transitions. [2024-11-16 08:36:40,192 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 572 transitions. Word has length 62 [2024-11-16 08:36:40,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:40,192 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 572 transitions. [2024-11-16 08:36:40,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,193 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 572 transitions. [2024-11-16 08:36:40,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:36:40,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:40,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:40,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:36:40,195 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:40,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:40,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1916387306, now seen corresponding path program 1 times [2024-11-16 08:36:40,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:40,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824588098] [2024-11-16 08:36:40,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:40,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:40,332 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 08:36:40,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:40,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824588098] [2024-11-16 08:36:40,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824588098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:40,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:40,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:40,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270435256] [2024-11-16 08:36:40,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:40,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:40,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:40,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:40,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:40,336 INFO L87 Difference]: Start difference. First operand 381 states and 572 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:40,369 INFO L93 Difference]: Finished difference Result 1005 states and 1538 transitions. [2024-11-16 08:36:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:40,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-16 08:36:40,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:40,375 INFO L225 Difference]: With dead ends: 1005 [2024-11-16 08:36:40,376 INFO L226 Difference]: Without dead ends: 659 [2024-11-16 08:36:40,378 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 08:36:40,380 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 139 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:40,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 447 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-16 08:36:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 657. [2024-11-16 08:36:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 656 states have (on average 1.5182926829268293) internal successors, (996), 656 states have internal predecessors, (996), 0 states have call successors, (0), 0 states 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 08:36:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 996 transitions. [2024-11-16 08:36:40,405 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 996 transitions. Word has length 63 [2024-11-16 08:36:40,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:40,405 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 996 transitions. [2024-11-16 08:36:40,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,406 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 996 transitions. [2024-11-16 08:36:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 08:36:40,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:40,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:40,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:36:40,408 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:40,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1506878147, now seen corresponding path program 1 times [2024-11-16 08:36:40,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:40,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027939623] [2024-11-16 08:36:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:40,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:40,536 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 08:36:40,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:40,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027939623] [2024-11-16 08:36:40,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027939623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:40,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:40,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:40,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566691202] [2024-11-16 08:36:40,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:40,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:40,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:40,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:40,540 INFO L87 Difference]: Start difference. First operand 657 states and 996 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:40,569 INFO L93 Difference]: Finished difference Result 1765 states and 2702 transitions. [2024-11-16 08:36:40,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:40,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-16 08:36:40,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:40,575 INFO L225 Difference]: With dead ends: 1765 [2024-11-16 08:36:40,575 INFO L226 Difference]: Without dead ends: 1143 [2024-11-16 08:36:40,579 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 08:36:40,581 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 134 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:40,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 432 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:40,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-16 08:36:40,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1141. [2024-11-16 08:36:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 1.5192982456140351) internal successors, (1732), 1140 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states 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 08:36:40,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1732 transitions. [2024-11-16 08:36:40,634 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1732 transitions. Word has length 64 [2024-11-16 08:36:40,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:40,634 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1732 transitions. [2024-11-16 08:36:40,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1732 transitions. [2024-11-16 08:36:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 08:36:40,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:40,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:40,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:36:40,637 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:40,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:40,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1143843939, now seen corresponding path program 1 times [2024-11-16 08:36:40,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:40,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975826954] [2024-11-16 08:36:40,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:40,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:40,739 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 08:36:40,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:40,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975826954] [2024-11-16 08:36:40,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975826954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:40,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:40,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778706418] [2024-11-16 08:36:40,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:40,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:40,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:40,743 INFO L87 Difference]: Start difference. First operand 1141 states and 1732 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:40,773 INFO L93 Difference]: Finished difference Result 3081 states and 4694 transitions. [2024-11-16 08:36:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:40,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-16 08:36:40,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:40,781 INFO L225 Difference]: With dead ends: 3081 [2024-11-16 08:36:40,782 INFO L226 Difference]: Without dead ends: 1975 [2024-11-16 08:36:40,784 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 08:36:40,785 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 129 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:40,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 417 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:40,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-16 08:36:40,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973. [2024-11-16 08:36:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1972 states have (on average 1.511156186612576) internal successors, (2980), 1972 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states 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 08:36:40,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2980 transitions. [2024-11-16 08:36:40,829 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2980 transitions. Word has length 65 [2024-11-16 08:36:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:40,830 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 2980 transitions. [2024-11-16 08:36:40,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:40,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2980 transitions. [2024-11-16 08:36:40,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:36:40,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:40,832 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] [2024-11-16 08:36:40,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:36:40,832 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:40,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash 125302934, now seen corresponding path program 1 times [2024-11-16 08:36:40,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:40,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684020682] [2024-11-16 08:36:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:40,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:41,033 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 08:36:41,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:41,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684020682] [2024-11-16 08:36:41,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684020682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:41,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:41,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:41,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701981021] [2024-11-16 08:36:41,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:41,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:41,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:41,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:41,036 INFO L87 Difference]: Start difference. First operand 1973 states and 2980 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 08:36:41,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:41,308 INFO L93 Difference]: Finished difference Result 13601 states and 20650 transitions. [2024-11-16 08:36:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:41,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-16 08:36:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:41,353 INFO L225 Difference]: With dead ends: 13601 [2024-11-16 08:36:41,354 INFO L226 Difference]: Without dead ends: 11663 [2024-11-16 08:36:41,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:36:41,361 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1518 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:41,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 2471 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11663 states. [2024-11-16 08:36:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11663 to 3909. [2024-11-16 08:36:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 3908 states have (on average 1.4994882292732856) internal successors, (5860), 3908 states have internal predecessors, (5860), 0 states have call successors, (0), 0 states 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 08:36:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 5860 transitions. [2024-11-16 08:36:41,511 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 5860 transitions. Word has length 66 [2024-11-16 08:36:41,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:41,512 INFO L471 AbstractCegarLoop]: Abstraction has 3909 states and 5860 transitions. [2024-11-16 08:36:41,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 08:36:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 5860 transitions. [2024-11-16 08:36:41,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:36:41,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:41,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:41,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:36:41,514 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:41,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:41,515 INFO L85 PathProgramCache]: Analyzing trace with hash 187607126, now seen corresponding path program 1 times [2024-11-16 08:36:41,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501613662] [2024-11-16 08:36:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:41,816 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 08:36:41,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:41,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501613662] [2024-11-16 08:36:41,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501613662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:41,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:41,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:36:41,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282856909] [2024-11-16 08:36:41,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:41,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:36:41,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:41,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:36:41,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:41,819 INFO L87 Difference]: Start difference. First operand 3909 states and 5860 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:42,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:42,019 INFO L93 Difference]: Finished difference Result 20239 states and 30185 transitions. [2024-11-16 08:36:42,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:36:42,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 08:36:42,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:42,091 INFO L225 Difference]: With dead ends: 20239 [2024-11-16 08:36:42,092 INFO L226 Difference]: Without dead ends: 16365 [2024-11-16 08:36:42,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:36:42,106 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 1234 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:42,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 805 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:36:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16365 states. [2024-11-16 08:36:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16365 to 16357. [2024-11-16 08:36:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16357 states, 16356 states have (on average 1.4852042064074347) internal successors, (24292), 16356 states have internal predecessors, (24292), 0 states have call successors, (0), 0 states 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 08:36:42,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16357 states to 16357 states and 24292 transitions. [2024-11-16 08:36:42,489 INFO L78 Accepts]: Start accepts. Automaton has 16357 states and 24292 transitions. Word has length 68 [2024-11-16 08:36:42,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:42,489 INFO L471 AbstractCegarLoop]: Abstraction has 16357 states and 24292 transitions. [2024-11-16 08:36:42,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:42,490 INFO L276 IsEmpty]: Start isEmpty. Operand 16357 states and 24292 transitions. [2024-11-16 08:36:42,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:36:42,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:42,491 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:42,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:36:42,492 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:42,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:42,492 INFO L85 PathProgramCache]: Analyzing trace with hash -54617644, now seen corresponding path program 1 times [2024-11-16 08:36:42,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:42,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056667284] [2024-11-16 08:36:42,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:42,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:42,903 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 08:36:42,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:42,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056667284] [2024-11-16 08:36:42,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056667284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:42,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:42,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:36:42,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563473954] [2024-11-16 08:36:42,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:42,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:36:42,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:42,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:36:42,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:36:42,906 INFO L87 Difference]: Start difference. First operand 16357 states and 24292 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:42,978 INFO L93 Difference]: Finished difference Result 17319 states and 25573 transitions. [2024-11-16 08:36:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:36:42,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-16 08:36:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:43,010 INFO L225 Difference]: With dead ends: 17319 [2024-11-16 08:36:43,010 INFO L226 Difference]: Without dead ends: 17317 [2024-11-16 08:36:43,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:36:43,021 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:43,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 769 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:43,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17317 states. [2024-11-16 08:36:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17317 to 17317. [2024-11-16 08:36:43,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17317 states, 17316 states have (on average 1.4583044583044582) internal successors, (25252), 17316 states have internal predecessors, (25252), 0 states have call successors, (0), 0 states 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 08:36:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17317 states to 17317 states and 25252 transitions. [2024-11-16 08:36:43,327 INFO L78 Accepts]: Start accepts. Automaton has 17317 states and 25252 transitions. Word has length 70 [2024-11-16 08:36:43,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:43,328 INFO L471 AbstractCegarLoop]: Abstraction has 17317 states and 25252 transitions. [2024-11-16 08:36:43,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:43,329 INFO L276 IsEmpty]: Start isEmpty. Operand 17317 states and 25252 transitions. [2024-11-16 08:36:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:36:43,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:43,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:43,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:36:43,332 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:43,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:43,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1545351755, now seen corresponding path program 1 times [2024-11-16 08:36:43,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:43,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057518689] [2024-11-16 08:36:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:43,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:43,405 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 08:36:43,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:43,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057518689] [2024-11-16 08:36:43,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057518689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:43,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:43,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:43,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106663875] [2024-11-16 08:36:43,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:43,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:43,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:43,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:43,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:43,408 INFO L87 Difference]: Start difference. First operand 17317 states and 25252 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:43,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:43,629 INFO L93 Difference]: Finished difference Result 42364 states and 61897 transitions. [2024-11-16 08:36:43,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:43,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 08:36:43,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:43,690 INFO L225 Difference]: With dead ends: 42364 [2024-11-16 08:36:43,690 INFO L226 Difference]: Without dead ends: 25082 [2024-11-16 08:36:43,722 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 08:36:43,723 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 119 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:43,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 403 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:43,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25082 states. [2024-11-16 08:36:44,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25082 to 25080. [2024-11-16 08:36:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25080 states, 25079 states have (on average 1.4567965229873598) internal successors, (36535), 25079 states have internal predecessors, (36535), 0 states have call successors, (0), 0 states 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 08:36:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25080 states to 25080 states and 36535 transitions. [2024-11-16 08:36:44,351 INFO L78 Accepts]: Start accepts. Automaton has 25080 states and 36535 transitions. Word has length 71 [2024-11-16 08:36:44,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:44,358 INFO L471 AbstractCegarLoop]: Abstraction has 25080 states and 36535 transitions. [2024-11-16 08:36:44,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 25080 states and 36535 transitions. [2024-11-16 08:36:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 08:36:44,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:44,384 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:44,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:36:44,384 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:44,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:44,384 INFO L85 PathProgramCache]: Analyzing trace with hash 643078508, now seen corresponding path program 1 times [2024-11-16 08:36:44,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:44,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626991375] [2024-11-16 08:36:44,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:44,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:44,660 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:36:44,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626991375] [2024-11-16 08:36:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626991375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:36:44,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235625030] [2024-11-16 08:36:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:44,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:36:44,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:36:44,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:36:44,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:36:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:44,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 08:36:44,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:36:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:45,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:36:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:46,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235625030] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:36:46,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:36:46,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 7] total 15 [2024-11-16 08:36:46,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015651000] [2024-11-16 08:36:46,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:36:46,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 08:36:46,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:46,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 08:36:46,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:36:46,475 INFO L87 Difference]: Start difference. First operand 25080 states and 36535 transitions. Second operand has 15 states, 15 states have (on average 18.6) internal successors, (279), 15 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 08:36:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:47,333 INFO L93 Difference]: Finished difference Result 82557 states and 120462 transitions. [2024-11-16 08:36:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:36:47,334 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.6) internal successors, (279), 15 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-16 08:36:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:47,453 INFO L225 Difference]: With dead ends: 82557 [2024-11-16 08:36:47,454 INFO L226 Difference]: Without dead ends: 57515 [2024-11-16 08:36:47,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2024-11-16 08:36:47,496 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 2834 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2834 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:47,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2834 Valid, 2514 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:36:47,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57515 states. [2024-11-16 08:36:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57515 to 57123. [2024-11-16 08:36:48,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57123 states, 57122 states have (on average 1.44882882252022) internal successors, (82760), 57122 states have internal predecessors, (82760), 0 states have call successors, (0), 0 states 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 08:36:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57123 states to 57123 states and 82760 transitions. [2024-11-16 08:36:48,709 INFO L78 Accepts]: Start accepts. Automaton has 57123 states and 82760 transitions. Word has length 98 [2024-11-16 08:36:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:48,709 INFO L471 AbstractCegarLoop]: Abstraction has 57123 states and 82760 transitions. [2024-11-16 08:36:48,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.6) internal successors, (279), 15 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 08:36:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 57123 states and 82760 transitions. [2024-11-16 08:36:48,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:36:48,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:48,719 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:48,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 08:36:48,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 08:36:48,920 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:48,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash -361799498, now seen corresponding path program 1 times [2024-11-16 08:36:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899090549] [2024-11-16 08:36:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:48,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:48,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899090549] [2024-11-16 08:36:48,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899090549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:48,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:48,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:48,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334497971] [2024-11-16 08:36:48,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:48,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:48,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:48,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:48,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:48,999 INFO L87 Difference]: Start difference. First operand 57123 states and 82760 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:49,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:49,549 INFO L93 Difference]: Finished difference Result 146614 states and 212058 transitions. [2024-11-16 08:36:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:49,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:36:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:49,705 INFO L225 Difference]: With dead ends: 146614 [2024-11-16 08:36:49,705 INFO L226 Difference]: Without dead ends: 98814 [2024-11-16 08:36:49,917 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 08:36:49,918 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 115 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:49,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 383 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:49,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98814 states. [2024-11-16 08:36:50,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98814 to 98812. [2024-11-16 08:36:51,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98812 states, 98811 states have (on average 1.4349009725637834) internal successors, (141784), 98811 states have internal predecessors, (141784), 0 states have call successors, (0), 0 states 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 08:36:51,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98812 states to 98812 states and 141784 transitions. [2024-11-16 08:36:51,595 INFO L78 Accepts]: Start accepts. Automaton has 98812 states and 141784 transitions. Word has length 99 [2024-11-16 08:36:51,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:51,595 INFO L471 AbstractCegarLoop]: Abstraction has 98812 states and 141784 transitions. [2024-11-16 08:36:51,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:51,596 INFO L276 IsEmpty]: Start isEmpty. Operand 98812 states and 141784 transitions. [2024-11-16 08:36:51,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:36:51,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:51,620 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:51,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:36:51,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:51,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1826923382, now seen corresponding path program 1 times [2024-11-16 08:36:51,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:51,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585373783] [2024-11-16 08:36:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:51,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:51,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:51,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585373783] [2024-11-16 08:36:51,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585373783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:51,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:51,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:51,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618864113] [2024-11-16 08:36:51,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:51,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:51,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:51,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:51,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:51,712 INFO L87 Difference]: Start difference. First operand 98812 states and 141784 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:52,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:52,591 INFO L93 Difference]: Finished difference Result 256109 states and 366535 transitions. [2024-11-16 08:36:52,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:52,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:36:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:52,869 INFO L225 Difference]: With dead ends: 256109 [2024-11-16 08:36:52,870 INFO L226 Difference]: Without dead ends: 166871 [2024-11-16 08:36:52,946 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 08:36:52,948 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 116 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:52,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 402 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166871 states. [2024-11-16 08:36:54,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166871 to 163421. [2024-11-16 08:36:54,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163421 states, 163420 states have (on average 1.4208358830008567) internal successors, (232193), 163420 states have internal predecessors, (232193), 0 states have call successors, (0), 0 states 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 08:36:55,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163421 states to 163421 states and 232193 transitions. [2024-11-16 08:36:55,675 INFO L78 Accepts]: Start accepts. Automaton has 163421 states and 232193 transitions. Word has length 99 [2024-11-16 08:36:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:36:55,679 INFO L471 AbstractCegarLoop]: Abstraction has 163421 states and 232193 transitions. [2024-11-16 08:36:55,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 163421 states and 232193 transitions. [2024-11-16 08:36:55,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:36:55,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:36:55,704 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:36:55,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:36:55,705 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:36:55,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:36:55,709 INFO L85 PathProgramCache]: Analyzing trace with hash 468272694, now seen corresponding path program 1 times [2024-11-16 08:36:55,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:36:55,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700848108] [2024-11-16 08:36:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:36:55,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:36:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:36:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:36:55,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:36:55,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700848108] [2024-11-16 08:36:55,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700848108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:36:55,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:36:55,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:36:55,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838196490] [2024-11-16 08:36:55,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:36:55,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:36:55,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:36:55,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:36:55,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:36:55,851 INFO L87 Difference]: Start difference. First operand 163421 states and 232193 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:36:57,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:36:57,531 INFO L93 Difference]: Finished difference Result 394320 states and 558087 transitions. [2024-11-16 08:36:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:36:57,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:36:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:36:57,952 INFO L225 Difference]: With dead ends: 394320 [2024-11-16 08:36:57,952 INFO L226 Difference]: Without dead ends: 260783 [2024-11-16 08:36:58,031 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 08:36:58,032 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 117 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:36:58,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 421 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:36:58,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260783 states. [2024-11-16 08:37:01,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260783 to 253749. [2024-11-16 08:37:01,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253749 states, 253748 states have (on average 1.4046022037612118) internal successors, (356415), 253748 states have internal predecessors, (356415), 0 states have call successors, (0), 0 states 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 08:37:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253749 states to 253749 states and 356415 transitions. [2024-11-16 08:37:01,708 INFO L78 Accepts]: Start accepts. Automaton has 253749 states and 356415 transitions. Word has length 99 [2024-11-16 08:37:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:01,708 INFO L471 AbstractCegarLoop]: Abstraction has 253749 states and 356415 transitions. [2024-11-16 08:37:01,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 253749 states and 356415 transitions. [2024-11-16 08:37:01,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:37:01,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:01,725 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:01,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:37:01,726 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:01,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1714243830, now seen corresponding path program 1 times [2024-11-16 08:37:01,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:01,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800056819] [2024-11-16 08:37:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:01,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:01,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:01,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800056819] [2024-11-16 08:37:01,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800056819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:01,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:01,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:01,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409544779] [2024-11-16 08:37:01,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:01,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:01,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:01,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:01,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:01,797 INFO L87 Difference]: Start difference. First operand 253749 states and 356415 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:04,179 INFO L93 Difference]: Finished difference Result 552622 states and 772201 transitions. [2024-11-16 08:37:04,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:04,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:37:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:05,605 INFO L225 Difference]: With dead ends: 552622 [2024-11-16 08:37:05,605 INFO L226 Difference]: Without dead ends: 371691 [2024-11-16 08:37:05,747 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 08:37:05,748 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 118 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:05,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 450 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371691 states. [2024-11-16 08:37:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371691 to 358229. [2024-11-16 08:37:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358229 states, 358228 states have (on average 1.3864438290697545) internal successors, (496663), 358228 states have internal predecessors, (496663), 0 states have call successors, (0), 0 states 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 08:37:11,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358229 states to 358229 states and 496663 transitions. [2024-11-16 08:37:11,841 INFO L78 Accepts]: Start accepts. Automaton has 358229 states and 496663 transitions. Word has length 99 [2024-11-16 08:37:11,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:11,841 INFO L471 AbstractCegarLoop]: Abstraction has 358229 states and 496663 transitions. [2024-11-16 08:37:11,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:11,842 INFO L276 IsEmpty]: Start isEmpty. Operand 358229 states and 496663 transitions. [2024-11-16 08:37:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:37:11,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:11,863 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:11,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:37:11,864 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:11,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:11,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1839158346, now seen corresponding path program 1 times [2024-11-16 08:37:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:11,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576255727] [2024-11-16 08:37:11,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:11,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:37:12,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:12,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576255727] [2024-11-16 08:37:12,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576255727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:12,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:12,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:37:12,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576610664] [2024-11-16 08:37:12,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:12,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:37:12,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:37:12,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:37:12,026 INFO L87 Difference]: Start difference. First operand 358229 states and 496663 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:16,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:16,085 INFO L93 Difference]: Finished difference Result 1014423 states and 1414211 transitions. [2024-11-16 08:37:16,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:37:16,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:37:16,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:17,789 INFO L225 Difference]: With dead ends: 1014423 [2024-11-16 08:37:17,790 INFO L226 Difference]: Without dead ends: 915477 [2024-11-16 08:37:17,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:37:17,975 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 1602 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:17,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 1425 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:37:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915477 states.