./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.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.6.2.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8dbdfeb1f17d8b6d14f86f0330503f4a2b5f36d22c7b983f35706e613bc02676 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:37:16,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:37:16,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:37:16,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:37:16,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:37:16,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:37:16,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:37:16,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:37:16,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:37:16,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:37:16,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:37:16,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:37:16,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:37:16,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:37:16,126 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:37:16,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:37:16,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:37:16,130 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:37:16,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:37:16,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:37:16,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:37:16,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:37:16,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:37:16,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:37:16,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:37:16,134 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:37:16,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:37:16,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:37:16,135 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:37:16,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:37:16,135 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:37:16,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:37:16,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:37:16,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:37:16,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:37:16,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:37:16,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:37:16,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:37:16,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:37:16,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:37:16,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:37:16,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:37:16,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dbdfeb1f17d8b6d14f86f0330503f4a2b5f36d22c7b983f35706e613bc02676 [2024-11-16 08:37:16,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:37:16,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:37:16,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:37:16,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:37:16,409 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:37:16,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-16 08:37:17,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:37:18,088 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:37:18,089 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-16 08:37:18,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac68395a/75781995959943a189e7b7e07c203444/FLAGc27f2b41e [2024-11-16 08:37:18,115 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac68395a/75781995959943a189e7b7e07c203444 [2024-11-16 08:37:18,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:37:18,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:37:18,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:37:18,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:37:18,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:37:18,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dac8ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18, skipping insertion in model container [2024-11-16 08:37:18,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:37:18,458 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[7365,7378] [2024-11-16 08:37:18,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:37:18,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:37:18,597 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[7365,7378] [2024-11-16 08:37:18,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:37:18,640 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:37:18,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18 WrapperNode [2024-11-16 08:37:18,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:37:18,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:37:18,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:37:18,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:37:18,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,698 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 674 [2024-11-16 08:37:18,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:37:18,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:37:18,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:37:18,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:37:18,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,762 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 08:37:18,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:37:18,798 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:37:18,798 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:37:18,799 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:37:18,800 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (1/1) ... [2024-11-16 08:37:18,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:37:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:37:18,836 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 08:37:18,840 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 08:37:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:37:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:37:18,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:37:18,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:37:19,030 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:37:19,032 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:37:19,631 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,631 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L284: havoc main_~node4__m4~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L599: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L302: havoc main_~node5__m5~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L320: havoc main_~node6__m6~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L799: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L685: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L372: 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 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L455: havoc main_~node6____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L771: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,632 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L541: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,634 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L427: havoc main_~node6____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,634 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:37:19,634 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L857: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L627: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L248: havoc main_~node2__m2~0#1; [2024-11-16 08:37:19,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L513: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc main_~node3__m3~0#1; [2024-11-16 08:37:19,676 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-16 08:37:19,677 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:37:19,696 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:37:19,696 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:37:19,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:37:19 BoogieIcfgContainer [2024-11-16 08:37:19,697 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:37:19,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:37:19,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:37:19,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:37:19,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:37:18" (1/3) ... [2024-11-16 08:37:19,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38821755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:37:19, skipping insertion in model container [2024-11-16 08:37:19,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:18" (2/3) ... [2024-11-16 08:37:19,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38821755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:37:19, skipping insertion in model container [2024-11-16 08:37:19,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:37:19" (3/3) ... [2024-11-16 08:37:19,708 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-16 08:37:19,721 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:37:19,721 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:37:19,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:37:19,793 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;@3d19c764, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:37:19,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:37:19,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 165 states have (on average 1.6727272727272726) internal successors, (276), 166 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 08:37:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:37:19,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:19,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:19,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1939221204, now seen corresponding path program 1 times [2024-11-16 08:37:19,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:19,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686195420] [2024-11-16 08:37:19,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:19,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:20,389 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 08:37:20,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:20,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686195420] [2024-11-16 08:37:20,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686195420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:20,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:20,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:20,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023687558] [2024-11-16 08:37:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:20,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:20,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:20,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:20,449 INFO L87 Difference]: Start difference. First operand has 167 states, 165 states have (on average 1.6727272727272726) internal successors, (276), 166 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:20,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:20,534 INFO L93 Difference]: Finished difference Result 394 states and 627 transitions. [2024-11-16 08:37:20,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:20,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-16 08:37:20,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:20,549 INFO L225 Difference]: With dead ends: 394 [2024-11-16 08:37:20,549 INFO L226 Difference]: Without dead ends: 265 [2024-11-16 08:37:20,553 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 08:37:20,558 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 202 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 593 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 08:37:20,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 593 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:20,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-16 08:37:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2024-11-16 08:37:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.4694656488549618) internal successors, (385), 262 states have internal predecessors, (385), 0 states have call successors, (0), 0 states 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 08:37:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 385 transitions. [2024-11-16 08:37:20,636 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 385 transitions. Word has length 74 [2024-11-16 08:37:20,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:20,636 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 385 transitions. [2024-11-16 08:37:20,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:20,637 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 385 transitions. [2024-11-16 08:37:20,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 08:37:20,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:20,639 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:20,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:37:20,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:20,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:20,641 INFO L85 PathProgramCache]: Analyzing trace with hash -553441054, now seen corresponding path program 1 times [2024-11-16 08:37:20,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:20,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596990896] [2024-11-16 08:37:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:20,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:20,831 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 08:37:20,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:20,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596990896] [2024-11-16 08:37:20,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596990896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:20,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:20,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:20,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61898052] [2024-11-16 08:37:20,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:20,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:20,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:20,838 INFO L87 Difference]: Start difference. First operand 263 states and 385 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:20,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:20,893 INFO L93 Difference]: Finished difference Result 667 states and 1013 transitions. [2024-11-16 08:37:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:20,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-16 08:37:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:20,902 INFO L225 Difference]: With dead ends: 667 [2024-11-16 08:37:20,902 INFO L226 Difference]: Without dead ends: 448 [2024-11-16 08:37:20,903 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 08:37:20,904 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 162 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 519 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 08:37:20,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 519 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-16 08:37:20,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2024-11-16 08:37:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.503370786516854) internal successors, (669), 445 states have internal predecessors, (669), 0 states have call successors, (0), 0 states 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 08:37:20,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 669 transitions. [2024-11-16 08:37:20,939 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 669 transitions. Word has length 75 [2024-11-16 08:37:20,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:20,940 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 669 transitions. [2024-11-16 08:37:20,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:20,940 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 669 transitions. [2024-11-16 08:37:20,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 08:37:20,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:20,942 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:20,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:37:20,943 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:20,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:20,944 INFO L85 PathProgramCache]: Analyzing trace with hash 64161197, now seen corresponding path program 1 times [2024-11-16 08:37:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:20,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771369812] [2024-11-16 08:37:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:20,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,093 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 08:37:21,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771369812] [2024-11-16 08:37:21,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771369812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:21,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520365767] [2024-11-16 08:37:21,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:21,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:21,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:21,100 INFO L87 Difference]: Start difference. First operand 446 states and 669 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:21,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:21,135 INFO L93 Difference]: Finished difference Result 1182 states and 1811 transitions. [2024-11-16 08:37:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:21,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-16 08:37:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:21,141 INFO L225 Difference]: With dead ends: 1182 [2024-11-16 08:37:21,142 INFO L226 Difference]: Without dead ends: 780 [2024-11-16 08:37:21,143 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 08:37:21,147 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 157 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 504 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 08:37:21,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 504 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:21,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-16 08:37:21,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 778. [2024-11-16 08:37:21,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 777 states have (on average 1.5199485199485199) internal successors, (1181), 777 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states 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 08:37:21,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1181 transitions. [2024-11-16 08:37:21,183 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1181 transitions. Word has length 76 [2024-11-16 08:37:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:21,184 INFO L471 AbstractCegarLoop]: Abstraction has 778 states and 1181 transitions. [2024-11-16 08:37:21,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1181 transitions. [2024-11-16 08:37:21,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 08:37:21,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:21,187 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:21,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:37:21,188 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:21,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:21,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1203654619, now seen corresponding path program 1 times [2024-11-16 08:37:21,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:21,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006382092] [2024-11-16 08:37:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:21,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,320 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 08:37:21,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006382092] [2024-11-16 08:37:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006382092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:21,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111707564] [2024-11-16 08:37:21,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:21,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:21,323 INFO L87 Difference]: Start difference. First operand 778 states and 1181 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:21,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:21,370 INFO L93 Difference]: Finished difference Result 2110 states and 3239 transitions. [2024-11-16 08:37:21,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:21,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 08:37:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:21,377 INFO L225 Difference]: With dead ends: 2110 [2024-11-16 08:37:21,377 INFO L226 Difference]: Without dead ends: 1376 [2024-11-16 08:37:21,381 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 08:37:21,382 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 152 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 489 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 08:37:21,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 489 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:21,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2024-11-16 08:37:21,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1374. [2024-11-16 08:37:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1373 states have (on average 1.5243991260014567) internal successors, (2093), 1373 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states 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 08:37:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 2093 transitions. [2024-11-16 08:37:21,418 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 2093 transitions. Word has length 77 [2024-11-16 08:37:21,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:21,419 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 2093 transitions. [2024-11-16 08:37:21,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:21,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 2093 transitions. [2024-11-16 08:37:21,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 08:37:21,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:21,421 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:21,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:37:21,422 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:21,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash -728986234, now seen corresponding path program 1 times [2024-11-16 08:37:21,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:21,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701431238] [2024-11-16 08:37:21,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:21,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,559 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 08:37:21,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701431238] [2024-11-16 08:37:21,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701431238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:21,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177830657] [2024-11-16 08:37:21,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:21,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:21,563 INFO L87 Difference]: Start difference. First operand 1374 states and 2093 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:21,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:21,616 INFO L93 Difference]: Finished difference Result 3762 states and 5759 transitions. [2024-11-16 08:37:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:21,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-16 08:37:21,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:21,626 INFO L225 Difference]: With dead ends: 3762 [2024-11-16 08:37:21,626 INFO L226 Difference]: Without dead ends: 2432 [2024-11-16 08:37:21,629 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 08:37:21,630 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 147 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 474 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 08:37:21,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 474 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:21,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-11-16 08:37:21,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2430. [2024-11-16 08:37:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2429 states have (on average 1.5203787566899958) internal successors, (3693), 2429 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states 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 08:37:21,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3693 transitions. [2024-11-16 08:37:21,685 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3693 transitions. Word has length 78 [2024-11-16 08:37:21,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:21,686 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3693 transitions. [2024-11-16 08:37:21,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3693 transitions. [2024-11-16 08:37:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:37:21,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:21,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:21,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:37:21,688 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:21,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:21,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2097857580, now seen corresponding path program 1 times [2024-11-16 08:37:21,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:21,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979950434] [2024-11-16 08:37:21,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:21,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,953 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 08:37:21,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979950434] [2024-11-16 08:37:21,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979950434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:37:21,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195934229] [2024-11-16 08:37:21,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:37:21,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:37:21,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:37:21,960 INFO L87 Difference]: Start difference. First operand 2430 states and 3693 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:22,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:22,304 INFO L93 Difference]: Finished difference Result 19132 states and 29236 transitions. [2024-11-16 08:37:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:37:22,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-16 08:37:22,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:22,363 INFO L225 Difference]: With dead ends: 19132 [2024-11-16 08:37:22,364 INFO L226 Difference]: Without dead ends: 16746 [2024-11-16 08:37:22,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:37:22,374 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 2137 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:22,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 3885 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:37:22,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16746 states. [2024-11-16 08:37:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16746 to 4814. [2024-11-16 08:37:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4814 states, 4813 states have (on average 1.5119468107209642) internal successors, (7277), 4813 states have internal predecessors, (7277), 0 states have call successors, (0), 0 states 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 08:37:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 7277 transitions. [2024-11-16 08:37:22,604 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 7277 transitions. Word has length 79 [2024-11-16 08:37:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:22,605 INFO L471 AbstractCegarLoop]: Abstraction has 4814 states and 7277 transitions. [2024-11-16 08:37:22,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 7277 transitions. [2024-11-16 08:37:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:37:22,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:22,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:22,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:37:22,607 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:22,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:22,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1670900684, now seen corresponding path program 1 times [2024-11-16 08:37:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:22,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158413981] [2024-11-16 08:37:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:22,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:22,945 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 08:37:22,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:22,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158413981] [2024-11-16 08:37:22,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158413981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:22,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:22,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:37:22,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891791810] [2024-11-16 08:37:22,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:22,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:37:22,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:22,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:37:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:37:22,948 INFO L87 Difference]: Start difference. First operand 4814 states and 7277 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 08:37:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:23,229 INFO L93 Difference]: Finished difference Result 29274 states and 44115 transitions. [2024-11-16 08:37:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:37:23,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-16 08:37:23,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:23,298 INFO L225 Difference]: With dead ends: 29274 [2024-11-16 08:37:23,299 INFO L226 Difference]: Without dead ends: 24504 [2024-11-16 08:37:23,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:37:23,316 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 1177 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:23,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1304 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:37:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24504 states. [2024-11-16 08:37:23,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24504 to 24494. [2024-11-16 08:37:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24494 states, 24493 states have (on average 1.503000857387825) internal successors, (36813), 24493 states have internal predecessors, (36813), 0 states have call successors, (0), 0 states 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 08:37:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24494 states to 24494 states and 36813 transitions. [2024-11-16 08:37:23,795 INFO L78 Accepts]: Start accepts. Automaton has 24494 states and 36813 transitions. Word has length 81 [2024-11-16 08:37:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:23,795 INFO L471 AbstractCegarLoop]: Abstraction has 24494 states and 36813 transitions. [2024-11-16 08:37:23,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 08:37:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 24494 states and 36813 transitions. [2024-11-16 08:37:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:37:23,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:23,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:23,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:37:23,798 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:23,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1518019069, now seen corresponding path program 1 times [2024-11-16 08:37:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:23,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153051065] [2024-11-16 08:37:23,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:23,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:23,878 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 08:37:23,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:23,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153051065] [2024-11-16 08:37:23,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153051065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:23,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:23,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:23,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302406503] [2024-11-16 08:37:23,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:23,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:23,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:23,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:23,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:23,881 INFO L87 Difference]: Start difference. First operand 24494 states and 36813 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 08:37:24,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:24,189 INFO L93 Difference]: Finished difference Result 68786 states and 103055 transitions. [2024-11-16 08:37:24,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:24,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-16 08:37:24,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:24,284 INFO L225 Difference]: With dead ends: 68786 [2024-11-16 08:37:24,285 INFO L226 Difference]: Without dead ends: 44336 [2024-11-16 08:37:24,330 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 08:37:24,332 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 171 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 568 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 08:37:24,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 568 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44336 states. [2024-11-16 08:37:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44336 to 44334. [2024-11-16 08:37:25,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44334 states, 44333 states have (on average 1.4864998984954774) internal successors, (65901), 44333 states have internal predecessors, (65901), 0 states have call successors, (0), 0 states 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 08:37:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44334 states to 44334 states and 65901 transitions. [2024-11-16 08:37:25,780 INFO L78 Accepts]: Start accepts. Automaton has 44334 states and 65901 transitions. Word has length 81 [2024-11-16 08:37:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:25,780 INFO L471 AbstractCegarLoop]: Abstraction has 44334 states and 65901 transitions. [2024-11-16 08:37:25,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 08:37:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 44334 states and 65901 transitions. [2024-11-16 08:37:25,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:37:25,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:25,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:25,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:37:25,782 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:25,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:25,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1103151918, now seen corresponding path program 1 times [2024-11-16 08:37:25,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:25,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164672868] [2024-11-16 08:37:25,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:25,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:26,396 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 08:37:26,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164672868] [2024-11-16 08:37:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164672868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:26,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:26,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:37:26,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928201590] [2024-11-16 08:37:26,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:26,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:26,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:26,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:26,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:26,398 INFO L87 Difference]: Start difference. First operand 44334 states and 65901 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 08:37:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:26,551 INFO L93 Difference]: Finished difference Result 46640 states and 68974 transitions. [2024-11-16 08:37:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:26,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 08:37:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:26,751 INFO L225 Difference]: With dead ends: 46640 [2024-11-16 08:37:26,752 INFO L226 Difference]: Without dead ends: 46638 [2024-11-16 08:37:26,765 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 08:37:26,767 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 893 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 08:37:26,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 893 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46638 states. [2024-11-16 08:37:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46638 to 46638. [2024-11-16 08:37:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46638 states, 46637 states have (on average 1.4624654244483994) internal successors, (68205), 46637 states have internal predecessors, (68205), 0 states have call successors, (0), 0 states 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 08:37:27,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46638 states to 46638 states and 68205 transitions. [2024-11-16 08:37:27,687 INFO L78 Accepts]: Start accepts. Automaton has 46638 states and 68205 transitions. Word has length 83 [2024-11-16 08:37:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:27,687 INFO L471 AbstractCegarLoop]: Abstraction has 46638 states and 68205 transitions. [2024-11-16 08:37:27,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 08:37:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 46638 states and 68205 transitions. [2024-11-16 08:37:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 08:37:27,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:27,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:27,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:37:27,694 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:27,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:27,695 INFO L85 PathProgramCache]: Analyzing trace with hash 309824120, now seen corresponding path program 1 times [2024-11-16 08:37:27,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:27,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513858141] [2024-11-16 08:37:27,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:27,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:27,783 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 08:37:27,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:27,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513858141] [2024-11-16 08:37:27,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513858141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:27,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:27,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:27,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52010530] [2024-11-16 08:37:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:27,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:27,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:27,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:27,786 INFO L87 Difference]: Start difference. First operand 46638 states and 68205 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:28,240 INFO L93 Difference]: Finished difference Result 113717 states and 166466 transitions. [2024-11-16 08:37:28,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:28,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-16 08:37:28,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:28,604 INFO L225 Difference]: With dead ends: 113717 [2024-11-16 08:37:28,604 INFO L226 Difference]: Without dead ends: 67123 [2024-11-16 08:37:28,689 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 08:37:28,690 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 137 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 411 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 08:37:28,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 411 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:28,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67123 states. [2024-11-16 08:37:29,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67123 to 67121. [2024-11-16 08:37:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67121 states, 67120 states have (on average 1.4593563766388558) internal successors, (97952), 67120 states have internal predecessors, (97952), 0 states have call successors, (0), 0 states 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 08:37:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67121 states to 67121 states and 97952 transitions. [2024-11-16 08:37:29,839 INFO L78 Accepts]: Start accepts. Automaton has 67121 states and 97952 transitions. Word has length 84 [2024-11-16 08:37:29,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:29,839 INFO L471 AbstractCegarLoop]: Abstraction has 67121 states and 97952 transitions. [2024-11-16 08:37:29,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:29,839 INFO L276 IsEmpty]: Start isEmpty. Operand 67121 states and 97952 transitions. [2024-11-16 08:37:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:37:29,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:29,868 INFO L215 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:29,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:37:29,868 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:29,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:29,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1265973684, now seen corresponding path program 1 times [2024-11-16 08:37:29,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:29,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518727777] [2024-11-16 08:37:29,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:29,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:30,130 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:37:30,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:30,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518727777] [2024-11-16 08:37:30,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518727777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:37:30,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727624748] [2024-11-16 08:37:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:30,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:37:30,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:37:30,133 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 08:37:30,134 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 08:37:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:30,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-16 08:37:30,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:37:31,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:31,414 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:37:32,659 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:32,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727624748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:37:32,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:37:32,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 7] total 15 [2024-11-16 08:37:32,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550647051] [2024-11-16 08:37:32,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:37:32,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 08:37:32,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 08:37:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:37:32,662 INFO L87 Difference]: Start difference. First operand 67121 states and 97952 transitions. Second operand has 15 states, 15 states have (on average 20.333333333333332) internal successors, (305), 15 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 08:37:34,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:34,192 INFO L93 Difference]: Finished difference Result 231825 states and 337139 transitions. [2024-11-16 08:37:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 08:37:34,193 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 20.333333333333332) internal successors, (305), 15 states have internal predecessors, (305), 0 states have call successors, (0), 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 115 [2024-11-16 08:37:34,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:34,771 INFO L225 Difference]: With dead ends: 231825 [2024-11-16 08:37:34,771 INFO L226 Difference]: Without dead ends: 164751 [2024-11-16 08:37:34,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=276, Invalid=594, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:37:34,847 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 3834 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3834 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:34,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3834 Valid, 3341 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:37:34,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164751 states. [2024-11-16 08:37:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164751 to 134325. [2024-11-16 08:37:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134325 states, 134324 states have (on average 1.4467630505345284) internal successors, (194335), 134324 states have internal predecessors, (194335), 0 states have call successors, (0), 0 states 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 08:37:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134325 states to 134325 states and 194335 transitions. [2024-11-16 08:37:36,823 INFO L78 Accepts]: Start accepts. Automaton has 134325 states and 194335 transitions. Word has length 115 [2024-11-16 08:37:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:36,824 INFO L471 AbstractCegarLoop]: Abstraction has 134325 states and 194335 transitions. [2024-11-16 08:37:36,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 20.333333333333332) internal successors, (305), 15 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 08:37:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 134325 states and 194335 transitions. [2024-11-16 08:37:36,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:37:36,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:36,841 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:36,859 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 08:37:37,041 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,SelfDestructingSolverStorable10 [2024-11-16 08:37:37,042 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:37,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:37,043 INFO L85 PathProgramCache]: Analyzing trace with hash 912846103, now seen corresponding path program 1 times [2024-11-16 08:37:37,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:37,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344349898] [2024-11-16 08:37:37,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:37,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:37,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:37,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344349898] [2024-11-16 08:37:37,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344349898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:37,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:37,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:37,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310264331] [2024-11-16 08:37:37,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:37,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:37,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:37,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:37,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:37,138 INFO L87 Difference]: Start difference. First operand 134325 states and 194335 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 08:37:38,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:38,673 INFO L93 Difference]: Finished difference Result 367925 states and 531927 transitions. [2024-11-16 08:37:38,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:38,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-16 08:37:38,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:39,212 INFO L225 Difference]: With dead ends: 367925 [2024-11-16 08:37:39,212 INFO L226 Difference]: Without dead ends: 247805 [2024-11-16 08:37:39,355 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 08:37:39,356 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 133 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 453 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 08:37:39,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 453 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:39,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247805 states. [2024-11-16 08:37:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247805 to 247803. [2024-11-16 08:37:43,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247803 states, 247802 states have (on average 1.4379544959282007) internal successors, (356328), 247802 states have internal predecessors, (356328), 0 states have call successors, (0), 0 states 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 08:37:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247803 states to 247803 states and 356328 transitions. [2024-11-16 08:37:43,717 INFO L78 Accepts]: Start accepts. Automaton has 247803 states and 356328 transitions. Word has length 116 [2024-11-16 08:37:43,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:43,718 INFO L471 AbstractCegarLoop]: Abstraction has 247803 states and 356328 transitions. [2024-11-16 08:37:43,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 08:37:43,718 INFO L276 IsEmpty]: Start isEmpty. Operand 247803 states and 356328 transitions. [2024-11-16 08:37:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:37:43,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:43,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:43,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:37:43,742 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:43,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:43,743 INFO L85 PathProgramCache]: Analyzing trace with hash 587124695, now seen corresponding path program 1 times [2024-11-16 08:37:43,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:43,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072093061] [2024-11-16 08:37:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:43,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:43,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:43,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072093061] [2024-11-16 08:37:43,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072093061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:43,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:43,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:43,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372497390] [2024-11-16 08:37:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:43,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:43,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:43,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:43,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:43,862 INFO L87 Difference]: Start difference. First operand 247803 states and 356328 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 08:37:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:47,443 INFO L93 Difference]: Finished difference Result 676772 states and 970750 transitions. [2024-11-16 08:37:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:47,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-16 08:37:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:48,181 INFO L225 Difference]: With dead ends: 676772 [2024-11-16 08:37:48,181 INFO L226 Difference]: Without dead ends: 443514 [2024-11-16 08:37:48,306 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 08:37:48,307 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 133 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 456 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 08:37:48,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 456 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443514 states. [2024-11-16 08:37:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443514 to 438484. [2024-11-16 08:37:55,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438484 states, 438483 states have (on average 1.426107739638709) internal successors, (625324), 438483 states have internal predecessors, (625324), 0 states have call successors, (0), 0 states 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 08:37:55,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438484 states to 438484 states and 625324 transitions. [2024-11-16 08:37:55,873 INFO L78 Accepts]: Start accepts. Automaton has 438484 states and 625324 transitions. Word has length 116 [2024-11-16 08:37:55,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:55,873 INFO L471 AbstractCegarLoop]: Abstraction has 438484 states and 625324 transitions. [2024-11-16 08:37:55,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 08:37:55,873 INFO L276 IsEmpty]: Start isEmpty. Operand 438484 states and 625324 transitions. [2024-11-16 08:37:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:37:56,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:56,856 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:56,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:37:56,856 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:56,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:56,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1519119721, now seen corresponding path program 1 times [2024-11-16 08:37:56,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:56,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152401236] [2024-11-16 08:37:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:56,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:57,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:57,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152401236] [2024-11-16 08:37:57,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152401236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:57,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:57,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008058374] [2024-11-16 08:37:57,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:57,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:57,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:57,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:57,032 INFO L87 Difference]: Start difference. First operand 438484 states and 625324 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 08:38:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:01,021 INFO L93 Difference]: Finished difference Result 1162313 states and 1652950 transitions. [2024-11-16 08:38:01,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:01,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-16 08:38:01,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:03,517 INFO L225 Difference]: With dead ends: 1162313 [2024-11-16 08:38:03,517 INFO L226 Difference]: Without dead ends: 767749 [2024-11-16 08:38:03,809 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 08:38:03,809 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 134 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 475 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 08:38:03,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 475 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:38:04,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767749 states.