./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash afd688b49db4d2cf9e7e2109162780e9655a2ed2ed733e9c6c0c10bb8df3342c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:52:17,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:52:17,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:52:17,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:52:17,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:52:17,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:52:17,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:52:17,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:52:17,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:52:17,590 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:52:17,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:52:17,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:52:17,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:52:17,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:52:17,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:52:17,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:52:17,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:52:17,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:52:17,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:52:17,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:52:17,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:52:17,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:52:17,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:52:17,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:52:17,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:52:17,600 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:52:17,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:52:17,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:52:17,601 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:52:17,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:52:17,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:52:17,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:52:17,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:52:17,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:52:17,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:52:17,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:52:17,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:52:17,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:52:17,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:52:17,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:52:17,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:52:17,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:52:17,609 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afd688b49db4d2cf9e7e2109162780e9655a2ed2ed733e9c6c0c10bb8df3342c [2024-11-09 23:52:17,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:52:17,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:52:17,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:52:17,926 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:52:17,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:52:17,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-09 23:52:19,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:52:19,660 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:52:19,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-09 23:52:19,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384511a18/49e644fec6224afb9e54a79b8ed62eb4/FLAG248f5e74e [2024-11-09 23:52:19,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384511a18/49e644fec6224afb9e54a79b8ed62eb4 [2024-11-09 23:52:19,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:52:19,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:52:19,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:52:19,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:52:19,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:52:19,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:52:19" (1/1) ... [2024-11-09 23:52:19,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a14118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:19, skipping insertion in model container [2024-11-09 23:52:19,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:52:19" (1/1) ... [2024-11-09 23:52:19,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:52:20,127 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.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[12887,12900] [2024-11-09 23:52:20,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:52:20,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:52:20,414 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.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[12887,12900] [2024-11-09 23:52:20,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:52:20,490 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:52:20,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20 WrapperNode [2024-11-09 23:52:20,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:52:20,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:52:20,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:52:20,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:52:20,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,582 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1463 [2024-11-09 23:52:20,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:52:20,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:52:20,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:52:20,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:52:20,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,607 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,653 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:52:20,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,676 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:52:20,709 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:52:20,710 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:52:20,710 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:52:20,711 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (1/1) ... [2024-11-09 23:52:20,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:52:20,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:52:20,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:52:20,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:52:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:52:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:52:20,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:52:20,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:52:20,956 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:52:20,958 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:52:22,149 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L895: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1556: havoc main_~node4____CPAchecker_TMP_1~2#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L567: havoc main_~node4__m4~3#1;havoc main_~node3__m3~3#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L567: havoc main_~node4__m4~3#1;havoc main_~node3__m3~3#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L567: havoc main_~node4__m4~3#1;havoc main_~node3__m3~3#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L567: havoc main_~node4__m4~3#1;havoc main_~node3__m3~3#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L507: havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L507: havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L507: havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-09 23:52:22,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2160: havoc main_~node1____CPAchecker_TMP_0~3#1; [2024-11-09 23:52:22,151 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L641: havoc main_~node2__m2~4#1;havoc main_~node1__m1~4#1; [2024-11-09 23:52:22,151 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L641: havoc main_~node2__m2~4#1;havoc main_~node1__m1~4#1; [2024-11-09 23:52:22,151 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L641: havoc main_~node2__m2~4#1;havoc main_~node1__m1~4#1; [2024-11-09 23:52:22,151 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L641: havoc main_~node2__m2~4#1;havoc main_~node1__m1~4#1; [2024-11-09 23:52:22,151 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2360: havoc main_~node3____CPAchecker_TMP_0~4#1; [2024-11-09 23:52:22,151 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L246: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:52:22,152 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L246: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:52:22,152 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L246: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:52:22,153 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L246: havoc main_~node4__m4~0#1;havoc main_~node3__m3~0#1; [2024-11-09 23:52:22,153 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1700: havoc main_~node2____CPAchecker_TMP_0~2#1; [2024-11-09 23:52:22,153 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1040: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:52:22,153 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2561: havoc main_~node1____CPAchecker_TMP_1~4#1; [2024-11-09 23:52:22,153 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1901: havoc main_~node4____CPAchecker_TMP_0~3#1; [2024-11-09 23:52:22,153 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1241: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-09 23:52:22,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L317: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:52:22,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L317: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:52:22,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L317: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:52:22,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L317: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:52:22,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2101: havoc main_~node2____CPAchecker_TMP_1~3#1; [2024-11-09 23:52:22,154 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L781: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:52:22,155 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1442: havoc main_~node1____CPAchecker_TMP_1~1#1; [2024-11-09 23:52:22,155 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2302: havoc main_~node4____CPAchecker_TMP_1~4#1; [2024-11-09 23:52:22,155 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L981: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:52:22,155 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1642: havoc main_~node3____CPAchecker_TMP_1~2#1; [2024-11-09 23:52:22,155 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1183: havoc main_~node4____CPAchecker_TMP_1~1#1; [2024-11-09 23:52:22,155 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L460: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:52:22,155 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L460: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:52:22,156 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L460: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:52:22,156 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L460: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:52:22,156 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: havoc main_~main____CPAchecker_TMP_0~4#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2024-11-09 23:52:22,157 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: havoc main_~main____CPAchecker_TMP_0~4#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2024-11-09 23:52:22,157 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: havoc main_~main____CPAchecker_TMP_0~4#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2024-11-09 23:52:22,157 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2446: havoc main_~node2____CPAchecker_TMP_0~4#1; [2024-11-09 23:52:22,158 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L531: havoc main_~node2__m2~3#1;havoc main_~node1__m1~3#1; [2024-11-09 23:52:22,158 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L531: havoc main_~node2__m2~3#1;havoc main_~node1__m1~3#1; [2024-11-09 23:52:22,158 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L531: havoc main_~node2__m2~3#1;havoc main_~node1__m1~3#1; [2024-11-09 23:52:22,158 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L531: havoc main_~node2__m2~3#1;havoc main_~node1__m1~3#1; [2024-11-09 23:52:22,158 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1787: havoc main_~node1____CPAchecker_TMP_0~2#1; [2024-11-09 23:52:22,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L400: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:52:22,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L400: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:52:22,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L400: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:52:22,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1987: havoc main_~node3____CPAchecker_TMP_0~3#1; [2024-11-09 23:52:22,160 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1327: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-09 23:52:22,160 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2188: havoc main_~node1____CPAchecker_TMP_1~3#1; [2024-11-09 23:52:22,160 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L867: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:52:22,164 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1528: havoc main_~node4____CPAchecker_TMP_0~2#1; [2024-11-09 23:52:22,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2388: havoc main_~node3____CPAchecker_TMP_1~4#1; [2024-11-09 23:52:22,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1728: havoc main_~node2____CPAchecker_TMP_1~2#1; [2024-11-09 23:52:22,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1068: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-09 23:52:22,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:52:22,165 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:52:22,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:52:22,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: havoc main_~node2__m2~0#1;havoc main_~node1__m1~0#1; [2024-11-09 23:52:22,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1929: havoc main_~node4____CPAchecker_TMP_1~3#1; [2024-11-09 23:52:22,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1269: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-09 23:52:22,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L809: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:52:22,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L677: havoc main_~node4__m4~4#1;havoc main_~node3__m3~4#1; [2024-11-09 23:52:22,166 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L677: havoc main_~node4__m4~4#1;havoc main_~node3__m3~4#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L677: havoc main_~node4__m4~4#1;havoc main_~node3__m3~4#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L677: havoc main_~node4__m4~4#1;havoc main_~node3__m3~4#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L614: havoc main_~main____CPAchecker_TMP_0~3#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L614: havoc main_~main____CPAchecker_TMP_0~3#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L614: havoc main_~main____CPAchecker_TMP_0~3#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2533: havoc main_~node1____CPAchecker_TMP_0~4#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L353: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:52:22,167 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L353: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L353: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L353: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2073: havoc main_~node2____CPAchecker_TMP_0~3#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1414: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L424: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L424: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L424: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L424: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2274: havoc main_~node4____CPAchecker_TMP_0~4#1; [2024-11-09 23:52:22,168 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:52:22,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1614: havoc main_~node3____CPAchecker_TMP_0~2#1; [2024-11-09 23:52:22,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:52:22,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:52:22,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:52:22,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2474: havoc main_~node2____CPAchecker_TMP_1~4#1; [2024-11-09 23:52:22,169 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1815: havoc main_~node1____CPAchecker_TMP_1~2#1; [2024-11-09 23:52:22,170 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1155: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-09 23:52:22,170 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2015: havoc main_~node3____CPAchecker_TMP_1~3#1; [2024-11-09 23:52:22,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1355: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-09 23:52:22,171 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L101: havoc main_~init__tmp~0#1; [2024-11-09 23:52:22,252 INFO L? ?]: Removed 201 outVars from TransFormulas that were not future-live. [2024-11-09 23:52:22,253 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:52:22,275 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:52:22,275 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:52:22,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:52:22 BoogieIcfgContainer [2024-11-09 23:52:22,276 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:52:22,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:52:22,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:52:22,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:52:22,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:52:19" (1/3) ... [2024-11-09 23:52:22,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c57c85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:52:22, skipping insertion in model container [2024-11-09 23:52:22,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:52:20" (2/3) ... [2024-11-09 23:52:22,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c57c85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:52:22, skipping insertion in model container [2024-11-09 23:52:22,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:52:22" (3/3) ... [2024-11-09 23:52:22,285 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-09 23:52:22,300 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:52:22,300 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:52:22,374 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:52:22,385 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;@194b4c28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:52:22,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:52:22,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 473 states, 471 states have (on average 1.575371549893843) internal successors, (742), 472 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 23:52:22,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:22,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:22,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:22,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1021018461, now seen corresponding path program 1 times [2024-11-09 23:52:22,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:22,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885047104] [2024-11-09 23:52:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:22,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:23,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:23,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885047104] [2024-11-09 23:52:23,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885047104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:23,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:23,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:52:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145336135] [2024-11-09 23:52:23,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:23,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:52:23,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:23,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:52:23,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:52:23,068 INFO L87 Difference]: Start difference. First operand has 473 states, 471 states have (on average 1.575371549893843) internal successors, (742), 472 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:23,248 INFO L93 Difference]: Finished difference Result 920 states and 1434 transitions. [2024-11-09 23:52:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:52:23,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-09 23:52:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:23,265 INFO L225 Difference]: With dead ends: 920 [2024-11-09 23:52:23,265 INFO L226 Difference]: Without dead ends: 469 [2024-11-09 23:52:23,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:52:23,273 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 153 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:23,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2037 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:52:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-09 23:52:23,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2024-11-09 23:52:23,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.5042735042735043) internal successors, (704), 468 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 704 transitions. [2024-11-09 23:52:23,331 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 704 transitions. Word has length 107 [2024-11-09 23:52:23,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:23,331 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 704 transitions. [2024-11-09 23:52:23,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 704 transitions. [2024-11-09 23:52:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 23:52:23,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:23,336 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:23,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:52:23,337 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:23,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:23,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1687962191, now seen corresponding path program 1 times [2024-11-09 23:52:23,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:23,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172165725] [2024-11-09 23:52:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:23,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:23,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:23,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172165725] [2024-11-09 23:52:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172165725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:23,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780736891] [2024-11-09 23:52:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:23,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:23,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:23,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:23,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:23,557 INFO L87 Difference]: Start difference. First operand 469 states and 704 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:23,615 INFO L93 Difference]: Finished difference Result 1133 states and 1739 transitions. [2024-11-09 23:52:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:23,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-09 23:52:23,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:23,621 INFO L225 Difference]: With dead ends: 1133 [2024-11-09 23:52:23,621 INFO L226 Difference]: Without dead ends: 728 [2024-11-09 23:52:23,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:23,624 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 489 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:23,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1441 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:52:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-09 23:52:23,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 726. [2024-11-09 23:52:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 1.5186206896551724) internal successors, (1101), 725 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1101 transitions. [2024-11-09 23:52:23,647 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1101 transitions. Word has length 153 [2024-11-09 23:52:23,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:23,647 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1101 transitions. [2024-11-09 23:52:23,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1101 transitions. [2024-11-09 23:52:23,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 23:52:23,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:23,650 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:23,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:52:23,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:23,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash -166585199, now seen corresponding path program 1 times [2024-11-09 23:52:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879756061] [2024-11-09 23:52:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:23,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:23,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879756061] [2024-11-09 23:52:23,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879756061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:23,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:23,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:23,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049405364] [2024-11-09 23:52:23,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:23,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:23,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:23,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:23,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:23,796 INFO L87 Difference]: Start difference. First operand 726 states and 1101 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:23,853 INFO L93 Difference]: Finished difference Result 1808 states and 2781 transitions. [2024-11-09 23:52:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:23,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2024-11-09 23:52:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:23,858 INFO L225 Difference]: With dead ends: 1808 [2024-11-09 23:52:23,858 INFO L226 Difference]: Without dead ends: 1159 [2024-11-09 23:52:23,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:23,861 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 473 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:23,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1374 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:52:23,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-09 23:52:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2024-11-09 23:52:23,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.5242214532871972) internal successors, (1762), 1156 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1762 transitions. [2024-11-09 23:52:23,889 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1762 transitions. Word has length 156 [2024-11-09 23:52:23,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:23,891 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1762 transitions. [2024-11-09 23:52:23,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1762 transitions. [2024-11-09 23:52:23,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-09 23:52:23,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:23,896 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:23,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:52:23,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:23,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash -683172041, now seen corresponding path program 1 times [2024-11-09 23:52:23,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:23,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760051529] [2024-11-09 23:52:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:24,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:24,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760051529] [2024-11-09 23:52:24,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760051529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:24,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:24,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:24,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451085265] [2024-11-09 23:52:24,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:24,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:24,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:24,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:24,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:24,037 INFO L87 Difference]: Start difference. First operand 1157 states and 1762 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:24,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:24,102 INFO L93 Difference]: Finished difference Result 2916 states and 4474 transitions. [2024-11-09 23:52:24,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:24,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-11-09 23:52:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:24,110 INFO L225 Difference]: With dead ends: 2916 [2024-11-09 23:52:24,113 INFO L226 Difference]: Without dead ends: 1849 [2024-11-09 23:52:24,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:24,116 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 458 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:24,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1163 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:52:24,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2024-11-09 23:52:24,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1847. [2024-11-09 23:52:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1846 states have (on average 1.5205850487540629) internal successors, (2807), 1846 states have internal predecessors, (2807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2807 transitions. [2024-11-09 23:52:24,155 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2807 transitions. Word has length 159 [2024-11-09 23:52:24,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:24,157 INFO L471 AbstractCegarLoop]: Abstraction has 1847 states and 2807 transitions. [2024-11-09 23:52:24,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:24,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2807 transitions. [2024-11-09 23:52:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 23:52:24,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:24,163 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:24,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:52:24,164 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:24,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:24,165 INFO L85 PathProgramCache]: Analyzing trace with hash -833699532, now seen corresponding path program 1 times [2024-11-09 23:52:24,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:24,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844213887] [2024-11-09 23:52:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:24,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:24,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:24,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844213887] [2024-11-09 23:52:24,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844213887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:24,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:24,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:24,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179415507] [2024-11-09 23:52:24,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:24,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:24,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:24,275 INFO L87 Difference]: Start difference. First operand 1847 states and 2807 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:24,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:24,340 INFO L93 Difference]: Finished difference Result 4623 states and 7037 transitions. [2024-11-09 23:52:24,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:24,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-09 23:52:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:24,351 INFO L225 Difference]: With dead ends: 4623 [2024-11-09 23:52:24,351 INFO L226 Difference]: Without dead ends: 2879 [2024-11-09 23:52:24,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:24,355 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 442 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:24,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1126 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:52:24,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2024-11-09 23:52:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2877. [2024-11-09 23:52:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2876 states have (on average 1.506258692628651) internal successors, (4332), 2876 states have internal predecessors, (4332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:24,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4332 transitions. [2024-11-09 23:52:24,411 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4332 transitions. Word has length 162 [2024-11-09 23:52:24,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:24,411 INFO L471 AbstractCegarLoop]: Abstraction has 2877 states and 4332 transitions. [2024-11-09 23:52:24,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:24,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4332 transitions. [2024-11-09 23:52:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 23:52:24,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:24,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:24,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:52:24,449 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:24,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:24,451 INFO L85 PathProgramCache]: Analyzing trace with hash -899829783, now seen corresponding path program 1 times [2024-11-09 23:52:24,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:24,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415861576] [2024-11-09 23:52:24,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:24,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:24,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:24,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415861576] [2024-11-09 23:52:24,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415861576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:24,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:24,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:52:24,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084458991] [2024-11-09 23:52:24,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:24,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:52:24,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:24,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:52:24,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:52:24,664 INFO L87 Difference]: Start difference. First operand 2877 states and 4332 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:25,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:25,023 INFO L93 Difference]: Finished difference Result 15008 states and 22610 transitions. [2024-11-09 23:52:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:52:25,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2024-11-09 23:52:25,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:25,064 INFO L225 Difference]: With dead ends: 15008 [2024-11-09 23:52:25,064 INFO L226 Difference]: Without dead ends: 12238 [2024-11-09 23:52:25,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:52:25,074 INFO L432 NwaCegarLoop]: 1439 mSDtfsCounter, 3310 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3310 SdHoareTripleChecker+Valid, 5604 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:25,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3310 Valid, 5604 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:52:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12238 states. [2024-11-09 23:52:25,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12238 to 5561. [2024-11-09 23:52:25,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5561 states, 5560 states have (on average 1.4861510791366908) internal successors, (8263), 5560 states have internal predecessors, (8263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5561 states to 5561 states and 8263 transitions. [2024-11-09 23:52:25,314 INFO L78 Accepts]: Start accepts. Automaton has 5561 states and 8263 transitions. Word has length 165 [2024-11-09 23:52:25,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:25,314 INFO L471 AbstractCegarLoop]: Abstraction has 5561 states and 8263 transitions. [2024-11-09 23:52:25,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:25,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5561 states and 8263 transitions. [2024-11-09 23:52:25,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 23:52:25,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:25,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:25,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:52:25,327 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:25,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:25,327 INFO L85 PathProgramCache]: Analyzing trace with hash -266822543, now seen corresponding path program 1 times [2024-11-09 23:52:25,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:25,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78826043] [2024-11-09 23:52:25,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:25,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:25,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:25,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78826043] [2024-11-09 23:52:25,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78826043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:25,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:25,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:25,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091548737] [2024-11-09 23:52:25,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:25,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:25,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:25,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:25,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:25,416 INFO L87 Difference]: Start difference. First operand 5561 states and 8263 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:25,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:25,553 INFO L93 Difference]: Finished difference Result 15844 states and 23529 transitions. [2024-11-09 23:52:25,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:25,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-09 23:52:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:25,592 INFO L225 Difference]: With dead ends: 15844 [2024-11-09 23:52:25,593 INFO L226 Difference]: Without dead ends: 10403 [2024-11-09 23:52:25,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:25,602 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 519 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:25,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1247 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:52:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10403 states. [2024-11-09 23:52:25,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10403 to 10401. [2024-11-09 23:52:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10401 states, 10400 states have (on average 1.4731730769230769) internal successors, (15321), 10400 states have internal predecessors, (15321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10401 states to 10401 states and 15321 transitions. [2024-11-09 23:52:25,803 INFO L78 Accepts]: Start accepts. Automaton has 10401 states and 15321 transitions. Word has length 171 [2024-11-09 23:52:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:25,804 INFO L471 AbstractCegarLoop]: Abstraction has 10401 states and 15321 transitions. [2024-11-09 23:52:25,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 10401 states and 15321 transitions. [2024-11-09 23:52:25,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 23:52:25,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:25,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:25,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:52:25,822 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:25,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:25,823 INFO L85 PathProgramCache]: Analyzing trace with hash 79414544, now seen corresponding path program 1 times [2024-11-09 23:52:25,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:25,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998047300] [2024-11-09 23:52:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:25,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:25,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:25,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998047300] [2024-11-09 23:52:25,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998047300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:25,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:25,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:25,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608483993] [2024-11-09 23:52:25,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:25,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:25,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:25,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:25,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:25,953 INFO L87 Difference]: Start difference. First operand 10401 states and 15321 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:26,125 INFO L93 Difference]: Finished difference Result 29516 states and 43373 transitions. [2024-11-09 23:52:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-09 23:52:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:26,167 INFO L225 Difference]: With dead ends: 29516 [2024-11-09 23:52:26,168 INFO L226 Difference]: Without dead ends: 19350 [2024-11-09 23:52:26,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:26,187 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 501 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:26,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1247 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:52:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2024-11-09 23:52:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 19348. [2024-11-09 23:52:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19348 states, 19347 states have (on average 1.456453196878069) internal successors, (28178), 19347 states have internal predecessors, (28178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19348 states to 19348 states and 28178 transitions. [2024-11-09 23:52:26,613 INFO L78 Accepts]: Start accepts. Automaton has 19348 states and 28178 transitions. Word has length 171 [2024-11-09 23:52:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:26,614 INFO L471 AbstractCegarLoop]: Abstraction has 19348 states and 28178 transitions. [2024-11-09 23:52:26,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand 19348 states and 28178 transitions. [2024-11-09 23:52:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 23:52:26,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:26,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:26,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:52:26,647 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:26,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1154176205, now seen corresponding path program 1 times [2024-11-09 23:52:26,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:26,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619185602] [2024-11-09 23:52:26,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:26,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:26,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619185602] [2024-11-09 23:52:26,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619185602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:26,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:26,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:26,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572765686] [2024-11-09 23:52:26,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:26,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:26,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:26,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:26,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:26,727 INFO L87 Difference]: Start difference. First operand 19348 states and 28178 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:27,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:27,103 INFO L93 Difference]: Finished difference Result 53322 states and 77158 transitions. [2024-11-09 23:52:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:27,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-09 23:52:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:27,236 INFO L225 Difference]: With dead ends: 53322 [2024-11-09 23:52:27,236 INFO L226 Difference]: Without dead ends: 35396 [2024-11-09 23:52:27,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:27,260 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 464 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:27,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1247 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:52:27,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35396 states. [2024-11-09 23:52:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35396 to 35394. [2024-11-09 23:52:27,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35394 states, 35393 states have (on average 1.4326561749498488) internal successors, (50706), 35393 states have internal predecessors, (50706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:28,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35394 states to 35394 states and 50706 transitions. [2024-11-09 23:52:28,045 INFO L78 Accepts]: Start accepts. Automaton has 35394 states and 50706 transitions. Word has length 171 [2024-11-09 23:52:28,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:28,045 INFO L471 AbstractCegarLoop]: Abstraction has 35394 states and 50706 transitions. [2024-11-09 23:52:28,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:28,046 INFO L276 IsEmpty]: Start isEmpty. Operand 35394 states and 50706 transitions. [2024-11-09 23:52:28,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 23:52:28,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:28,099 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:28,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:52:28,100 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:28,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1619846384, now seen corresponding path program 1 times [2024-11-09 23:52:28,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:28,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116658504] [2024-11-09 23:52:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:28,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:28,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:28,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116658504] [2024-11-09 23:52:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116658504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:28,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:28,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:28,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110616203] [2024-11-09 23:52:28,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:28,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:28,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:28,307 INFO L87 Difference]: Start difference. First operand 35394 states and 50706 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:28,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:28,875 INFO L93 Difference]: Finished difference Result 99142 states and 141159 transitions. [2024-11-09 23:52:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:28,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-09 23:52:28,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:29,006 INFO L225 Difference]: With dead ends: 99142 [2024-11-09 23:52:29,007 INFO L226 Difference]: Without dead ends: 64849 [2024-11-09 23:52:29,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:29,057 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 483 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:29,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1247 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:52:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64849 states. [2024-11-09 23:52:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64849 to 64847. [2024-11-09 23:52:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64847 states, 64846 states have (on average 1.4075964593035808) internal successors, (91277), 64846 states have internal predecessors, (91277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:30,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64847 states to 64847 states and 91277 transitions. [2024-11-09 23:52:30,544 INFO L78 Accepts]: Start accepts. Automaton has 64847 states and 91277 transitions. Word has length 171 [2024-11-09 23:52:30,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:30,544 INFO L471 AbstractCegarLoop]: Abstraction has 64847 states and 91277 transitions. [2024-11-09 23:52:30,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:30,544 INFO L276 IsEmpty]: Start isEmpty. Operand 64847 states and 91277 transitions. [2024-11-09 23:52:30,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 23:52:30,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:30,830 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:30,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:52:30,831 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:30,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1875828815, now seen corresponding path program 1 times [2024-11-09 23:52:30,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:30,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255990451] [2024-11-09 23:52:30,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:30,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:31,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:31,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255990451] [2024-11-09 23:52:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255990451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:31,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:31,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:52:31,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936904544] [2024-11-09 23:52:31,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:31,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:52:31,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:31,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:52:31,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:52:31,119 INFO L87 Difference]: Start difference. First operand 64847 states and 91277 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:32,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:32,016 INFO L93 Difference]: Finished difference Result 153289 states and 218457 transitions. [2024-11-09 23:52:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:52:32,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-09 23:52:32,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:32,189 INFO L225 Difference]: With dead ends: 153289 [2024-11-09 23:52:32,190 INFO L226 Difference]: Without dead ends: 132167 [2024-11-09 23:52:32,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:52:32,224 INFO L432 NwaCegarLoop]: 1095 mSDtfsCounter, 3379 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:32,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 3228 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:52:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132167 states. [2024-11-09 23:52:34,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132167 to 86395. [2024-11-09 23:52:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86395 states, 86394 states have (on average 1.406000416695604) internal successors, (121470), 86394 states have internal predecessors, (121470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86395 states to 86395 states and 121470 transitions. [2024-11-09 23:52:34,251 INFO L78 Accepts]: Start accepts. Automaton has 86395 states and 121470 transitions. Word has length 173 [2024-11-09 23:52:34,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:34,252 INFO L471 AbstractCegarLoop]: Abstraction has 86395 states and 121470 transitions. [2024-11-09 23:52:34,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:34,252 INFO L276 IsEmpty]: Start isEmpty. Operand 86395 states and 121470 transitions. [2024-11-09 23:52:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 23:52:34,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:34,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:34,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:52:34,330 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:34,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:34,331 INFO L85 PathProgramCache]: Analyzing trace with hash 645987950, now seen corresponding path program 1 times [2024-11-09 23:52:34,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:34,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652363704] [2024-11-09 23:52:34,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:34,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:34,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:34,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652363704] [2024-11-09 23:52:34,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652363704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:34,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:34,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:52:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960524279] [2024-11-09 23:52:34,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:34,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:52:34,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:52:34,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:52:34,541 INFO L87 Difference]: Start difference. First operand 86395 states and 121470 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:35,535 INFO L93 Difference]: Finished difference Result 173481 states and 246777 transitions. [2024-11-09 23:52:35,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:52:35,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-09 23:52:35,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:35,740 INFO L225 Difference]: With dead ends: 173481 [2024-11-09 23:52:35,741 INFO L226 Difference]: Without dead ends: 151399 [2024-11-09 23:52:35,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:52:35,798 INFO L432 NwaCegarLoop]: 1106 mSDtfsCounter, 3054 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:35,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 3564 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:52:35,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151399 states. [2024-11-09 23:52:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151399 to 105637. [2024-11-09 23:52:38,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105637 states, 105636 states have (on average 1.406395546972623) internal successors, (148566), 105636 states have internal predecessors, (148566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:38,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105637 states to 105637 states and 148566 transitions. [2024-11-09 23:52:38,257 INFO L78 Accepts]: Start accepts. Automaton has 105637 states and 148566 transitions. Word has length 173 [2024-11-09 23:52:38,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:38,257 INFO L471 AbstractCegarLoop]: Abstraction has 105637 states and 148566 transitions. [2024-11-09 23:52:38,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:38,257 INFO L276 IsEmpty]: Start isEmpty. Operand 105637 states and 148566 transitions. [2024-11-09 23:52:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 23:52:38,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:38,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:38,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:52:38,333 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:38,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:38,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1623672430, now seen corresponding path program 1 times [2024-11-09 23:52:38,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:38,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653520662] [2024-11-09 23:52:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:38,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:38,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:38,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653520662] [2024-11-09 23:52:38,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653520662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:38,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:38,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:52:38,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794741738] [2024-11-09 23:52:38,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:38,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:52:38,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:38,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:52:38,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:52:38,538 INFO L87 Difference]: Start difference. First operand 105637 states and 148566 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:39,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:39,594 INFO L93 Difference]: Finished difference Result 197265 states and 280205 transitions. [2024-11-09 23:52:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:52:39,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-09 23:52:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:39,780 INFO L225 Difference]: With dead ends: 197265 [2024-11-09 23:52:39,780 INFO L226 Difference]: Without dead ends: 174223 [2024-11-09 23:52:39,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:52:39,841 INFO L432 NwaCegarLoop]: 1117 mSDtfsCounter, 3400 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3400 SdHoareTripleChecker+Valid, 3892 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:39,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3400 Valid, 3892 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:52:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174223 states. [2024-11-09 23:52:42,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174223 to 123553. [2024-11-09 23:52:42,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123553 states, 123552 states have (on average 1.407059375809376) internal successors, (173845), 123552 states have internal predecessors, (173845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123553 states to 123553 states and 173845 transitions. [2024-11-09 23:52:42,865 INFO L78 Accepts]: Start accepts. Automaton has 123553 states and 173845 transitions. Word has length 173 [2024-11-09 23:52:42,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:42,865 INFO L471 AbstractCegarLoop]: Abstraction has 123553 states and 173845 transitions. [2024-11-09 23:52:42,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:42,865 INFO L276 IsEmpty]: Start isEmpty. Operand 123553 states and 173845 transitions. [2024-11-09 23:52:42,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 23:52:42,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:42,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:42,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:52:42,982 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:42,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:42,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1888959025, now seen corresponding path program 1 times [2024-11-09 23:52:42,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:42,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649290844] [2024-11-09 23:52:42,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:42,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:43,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:43,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649290844] [2024-11-09 23:52:43,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649290844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:43,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:43,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:52:43,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525663445] [2024-11-09 23:52:43,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:43,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:52:43,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:52:43,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:52:43,169 INFO L87 Difference]: Start difference. First operand 123553 states and 173845 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:44,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:44,526 INFO L93 Difference]: Finished difference Result 223481 states and 317120 transitions. [2024-11-09 23:52:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:52:44,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-09 23:52:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:44,741 INFO L225 Difference]: With dead ends: 223481 [2024-11-09 23:52:44,742 INFO L226 Difference]: Without dead ends: 199479 [2024-11-09 23:52:44,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:52:44,798 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 3422 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:44,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 3178 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 23:52:44,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199479 states. [2024-11-09 23:52:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199479 to 140398. [2024-11-09 23:52:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140398 states, 140397 states have (on average 1.4075799340441748) internal successors, (197620), 140397 states have internal predecessors, (197620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:48,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140398 states to 140398 states and 197620 transitions. [2024-11-09 23:52:48,368 INFO L78 Accepts]: Start accepts. Automaton has 140398 states and 197620 transitions. Word has length 173 [2024-11-09 23:52:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:48,369 INFO L471 AbstractCegarLoop]: Abstraction has 140398 states and 197620 transitions. [2024-11-09 23:52:48,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:48,369 INFO L276 IsEmpty]: Start isEmpty. Operand 140398 states and 197620 transitions. [2024-11-09 23:52:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-09 23:52:48,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:48,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:48,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:52:48,493 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:48,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:48,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1072952183, now seen corresponding path program 1 times [2024-11-09 23:52:48,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:48,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630884059] [2024-11-09 23:52:48,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:48,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:48,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:48,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630884059] [2024-11-09 23:52:48,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630884059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:48,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:48,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:52:48,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133678364] [2024-11-09 23:52:48,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:48,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:52:48,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:52:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:52:48,763 INFO L87 Difference]: Start difference. First operand 140398 states and 197620 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:49,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:49,523 INFO L93 Difference]: Finished difference Result 214162 states and 299464 transitions. [2024-11-09 23:52:49,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:52:49,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2024-11-09 23:52:49,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:50,479 INFO L225 Difference]: With dead ends: 214162 [2024-11-09 23:52:50,479 INFO L226 Difference]: Without dead ends: 135523 [2024-11-09 23:52:50,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:52:50,529 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 2223 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:50,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 2164 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:52:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135523 states. [2024-11-09 23:52:52,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135523 to 132385. [2024-11-09 23:52:52,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132385 states, 132384 states have (on average 1.384487551365724) internal successors, (183284), 132384 states have internal predecessors, (183284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132385 states to 132385 states and 183284 transitions. [2024-11-09 23:52:52,955 INFO L78 Accepts]: Start accepts. Automaton has 132385 states and 183284 transitions. Word has length 175 [2024-11-09 23:52:52,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:52,956 INFO L471 AbstractCegarLoop]: Abstraction has 132385 states and 183284 transitions. [2024-11-09 23:52:52,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:52,956 INFO L276 IsEmpty]: Start isEmpty. Operand 132385 states and 183284 transitions. [2024-11-09 23:52:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-09 23:52:53,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:53,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:53,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:52:53,120 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:53,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash -903814917, now seen corresponding path program 1 times [2024-11-09 23:52:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469847196] [2024-11-09 23:52:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:53,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:53,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:53,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469847196] [2024-11-09 23:52:53,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469847196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:53,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:53,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:53,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007380566] [2024-11-09 23:52:53,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:53,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:53,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:53,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:53,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:53,245 INFO L87 Difference]: Start difference. First operand 132385 states and 183284 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:53,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:53,889 INFO L93 Difference]: Finished difference Result 183138 states and 252834 transitions. [2024-11-09 23:52:53,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:53,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-11-09 23:52:53,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:54,042 INFO L225 Difference]: With dead ends: 183138 [2024-11-09 23:52:54,042 INFO L226 Difference]: Without dead ends: 123858 [2024-11-09 23:52:54,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:54,107 INFO L432 NwaCegarLoop]: 1147 mSDtfsCounter, 504 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:54,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1734 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:52:54,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123858 states. [2024-11-09 23:52:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123858 to 123762. [2024-11-09 23:52:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123762 states, 123761 states have (on average 1.3714013299827894) internal successors, (169726), 123761 states have internal predecessors, (169726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123762 states to 123762 states and 169726 transitions. [2024-11-09 23:52:56,635 INFO L78 Accepts]: Start accepts. Automaton has 123762 states and 169726 transitions. Word has length 177 [2024-11-09 23:52:56,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:52:56,636 INFO L471 AbstractCegarLoop]: Abstraction has 123762 states and 169726 transitions. [2024-11-09 23:52:56,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:56,636 INFO L276 IsEmpty]: Start isEmpty. Operand 123762 states and 169726 transitions. [2024-11-09 23:52:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-09 23:52:56,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:52:56,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:52:56,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:52:56,749 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:52:56,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:52:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash 827664090, now seen corresponding path program 1 times [2024-11-09 23:52:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:52:56,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969504390] [2024-11-09 23:52:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:52:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:52:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:52:56,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:52:56,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:52:56,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969504390] [2024-11-09 23:52:56,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969504390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:52:56,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:52:56,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:52:56,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349963074] [2024-11-09 23:52:56,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:52:56,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:52:56,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:52:56,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:52:56,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:56,892 INFO L87 Difference]: Start difference. First operand 123762 states and 169726 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:52:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:52:57,981 INFO L93 Difference]: Finished difference Result 154979 states and 212235 transitions. [2024-11-09 23:52:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:52:57,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-09 23:52:57,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:52:58,199 INFO L225 Difference]: With dead ends: 154979 [2024-11-09 23:52:58,199 INFO L226 Difference]: Without dead ends: 120840 [2024-11-09 23:52:58,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:52:58,222 INFO L432 NwaCegarLoop]: 1067 mSDtfsCounter, 416 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:52:58,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1654 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:52:58,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120840 states. [2024-11-09 23:52:59,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120840 to 120838. [2024-11-09 23:53:00,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120838 states, 120837 states have (on average 1.3614042056654831) internal successors, (164508), 120837 states have internal predecessors, (164508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120838 states to 120838 states and 164508 transitions. [2024-11-09 23:53:00,215 INFO L78 Accepts]: Start accepts. Automaton has 120838 states and 164508 transitions. Word has length 179 [2024-11-09 23:53:00,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:00,215 INFO L471 AbstractCegarLoop]: Abstraction has 120838 states and 164508 transitions. [2024-11-09 23:53:00,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand 120838 states and 164508 transitions. [2024-11-09 23:53:00,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-09 23:53:00,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:00,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:00,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:53:00,324 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:00,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:00,324 INFO L85 PathProgramCache]: Analyzing trace with hash -710649651, now seen corresponding path program 1 times [2024-11-09 23:53:00,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:00,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723517353] [2024-11-09 23:53:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:00,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:00,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723517353] [2024-11-09 23:53:00,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723517353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:00,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:00,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:00,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735758916] [2024-11-09 23:53:00,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:00,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:00,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:00,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:00,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:00,451 INFO L87 Difference]: Start difference. First operand 120838 states and 164508 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:01,472 INFO L93 Difference]: Finished difference Result 159095 states and 215962 transitions. [2024-11-09 23:53:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:01,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-09 23:53:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:01,590 INFO L225 Difference]: With dead ends: 159095 [2024-11-09 23:53:01,590 INFO L226 Difference]: Without dead ends: 108497 [2024-11-09 23:53:01,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:01,635 INFO L432 NwaCegarLoop]: 1128 mSDtfsCounter, 434 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:01,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1715 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:01,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108497 states. [2024-11-09 23:53:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108497 to 108495. [2024-11-09 23:53:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108495 states, 108494 states have (on average 1.3478441204121887) internal successors, (146233), 108494 states have internal predecessors, (146233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:03,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108495 states to 108495 states and 146233 transitions. [2024-11-09 23:53:03,311 INFO L78 Accepts]: Start accepts. Automaton has 108495 states and 146233 transitions. Word has length 179 [2024-11-09 23:53:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:03,312 INFO L471 AbstractCegarLoop]: Abstraction has 108495 states and 146233 transitions. [2024-11-09 23:53:03,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:03,312 INFO L276 IsEmpty]: Start isEmpty. Operand 108495 states and 146233 transitions. [2024-11-09 23:53:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-09 23:53:03,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:03,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:03,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:53:03,950 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:03,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:03,951 INFO L85 PathProgramCache]: Analyzing trace with hash -446863345, now seen corresponding path program 1 times [2024-11-09 23:53:03,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:03,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635919849] [2024-11-09 23:53:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:03,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:04,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635919849] [2024-11-09 23:53:04,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635919849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:04,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:04,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:04,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167505466] [2024-11-09 23:53:04,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:04,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:04,198 INFO L87 Difference]: Start difference. First operand 108495 states and 146233 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:04,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:04,517 INFO L93 Difference]: Finished difference Result 166643 states and 225331 transitions. [2024-11-09 23:53:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:04,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2024-11-09 23:53:04,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:04,596 INFO L225 Difference]: With dead ends: 166643 [2024-11-09 23:53:04,597 INFO L226 Difference]: Without dead ends: 74207 [2024-11-09 23:53:04,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:04,656 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 301 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:04,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1050 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:04,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74207 states. [2024-11-09 23:53:05,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74207 to 74205. [2024-11-09 23:53:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74205 states, 74204 states have (on average 1.3409654466066518) internal successors, (99505), 74204 states have internal predecessors, (99505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74205 states to 74205 states and 99505 transitions. [2024-11-09 23:53:06,068 INFO L78 Accepts]: Start accepts. Automaton has 74205 states and 99505 transitions. Word has length 181 [2024-11-09 23:53:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:53:06,068 INFO L471 AbstractCegarLoop]: Abstraction has 74205 states and 99505 transitions. [2024-11-09 23:53:06,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 74205 states and 99505 transitions. [2024-11-09 23:53:06,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-09 23:53:06,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:53:06,119 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:53:06,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:53:06,120 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:53:06,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:53:06,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1074855272, now seen corresponding path program 1 times [2024-11-09 23:53:06,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:53:06,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817973929] [2024-11-09 23:53:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:53:06,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:53:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:53:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:53:06,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:53:06,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817973929] [2024-11-09 23:53:06,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817973929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:53:06,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:53:06,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:53:06,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53347631] [2024-11-09 23:53:06,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:53:06,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:53:06,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:53:06,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:53:06,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:06,251 INFO L87 Difference]: Start difference. First operand 74205 states and 99505 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:53:06,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:53:06,542 INFO L93 Difference]: Finished difference Result 101681 states and 136627 transitions. [2024-11-09 23:53:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:53:06,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2024-11-09 23:53:06,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:53:06,596 INFO L225 Difference]: With dead ends: 101681 [2024-11-09 23:53:06,596 INFO L226 Difference]: Without dead ends: 38899 [2024-11-09 23:53:06,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:53:06,642 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 261 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:53:06,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 971 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:53:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38899 states.