./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59df1758127560236621fddca0cfb7b951a4ad9d8bd949539c1385f0c08fd544 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:44:14,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:44:14,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:44:14,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:44:14,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:44:15,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:44:15,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:44:15,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:44:15,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:44:15,002 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:44:15,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:44:15,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:44:15,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:44:15,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:44:15,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:44:15,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:44:15,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:44:15,005 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:44:15,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:44:15,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:44:15,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:44:15,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:44:15,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:44:15,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:44:15,009 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:44:15,010 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:44:15,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:44:15,010 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:44:15,010 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:44:15,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:44:15,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:44:15,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:44:15,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:44:15,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:44:15,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:44:15,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:44:15,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:44:15,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:44:15,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:44:15,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:44:15,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:44:15,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:44:15,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59df1758127560236621fddca0cfb7b951a4ad9d8bd949539c1385f0c08fd544 [2024-11-16 08:44:15,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:44:15,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:44:15,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:44:15,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:44:15,241 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:44:15,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-11-16 08:44:16,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:44:16,789 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:44:16,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-11-16 08:44:16,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7792d94/a170c81b24a34b2da2e5567e7ca8983d/FLAG874c735e7 [2024-11-16 08:44:17,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb7792d94/a170c81b24a34b2da2e5567e7ca8983d [2024-11-16 08:44:17,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:44:17,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:44:17,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:44:17,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:44:17,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:44:17,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f1319a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17, skipping insertion in model container [2024-11-16 08:44:17,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:44:17,477 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.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10527,10540] [2024-11-16 08:44:17,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:44:17,539 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:44:17,615 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.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c[10527,10540] [2024-11-16 08:44:17,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:44:17,668 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:44:17,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17 WrapperNode [2024-11-16 08:44:17,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:44:17,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:44:17,670 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:44:17,670 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:44:17,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,726 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 919 [2024-11-16 08:44:17,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:44:17,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:44:17,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:44:17,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:44:17,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,765 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:44:17,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,773 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:44:17,781 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:44:17,781 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:44:17,781 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:44:17,782 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (1/1) ... [2024-11-16 08:44:17,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:44:17,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:44:17,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:44:17,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:44:17,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:44:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:44:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:44:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:44:17,965 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:44:17,967 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:44:18,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L631: havoc main_~node5__m5~2#1; [2024-11-16 08:44:18,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L863: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:18,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L616: havoc main_~node4__m4~2#1; [2024-11-16 08:44:18,635 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L996: havoc main_~node7____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L683: havoc main_~node6____CPAchecker_TMP_0~1#1;havoc main_~node6__m6~2#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L601: havoc main_~node3__m3~2#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L586: havoc main_~node2__m2~2#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L570: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L818: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L773: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L510: havoc main_~node7__m7~1#1;havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1;havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node7____CPAchecker_TMP_0~0#1;havoc main_~node7__m7~0#1;havoc main_~node6____CPAchecker_TMP_0~0#1;havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1;havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:44:18,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L909: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:18,637 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L728: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:18,676 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-16 08:44:18,676 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:44:18,694 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:44:18,694 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:44:18,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:44:18 BoogieIcfgContainer [2024-11-16 08:44:18,694 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:44:18,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:44:18,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:44:18,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:44:18,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:44:17" (1/3) ... [2024-11-16 08:44:18,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cd50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:44:18, skipping insertion in model container [2024-11-16 08:44:18,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:17" (2/3) ... [2024-11-16 08:44:18,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cd50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:44:18, skipping insertion in model container [2024-11-16 08:44:18,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:44:18" (3/3) ... [2024-11-16 08:44:18,704 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+nlh-reducer.c [2024-11-16 08:44:18,717 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:44:18,717 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:44:18,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:44:18,780 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;@43147875, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:44:18,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:44:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.75) internal successors, (357), 205 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 08:44:18,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:18,793 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] [2024-11-16 08:44:18,794 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:18,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1128665491, now seen corresponding path program 1 times [2024-11-16 08:44:18,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:18,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324912250] [2024-11-16 08:44:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:18,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:19,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:19,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324912250] [2024-11-16 08:44:19,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324912250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:19,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:19,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:19,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724914462] [2024-11-16 08:44:19,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:19,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:19,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:19,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:19,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:19,536 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.75) internal successors, (357), 205 states have internal predecessors, (357), 0 states have call successors, (0), 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 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:20,232 INFO L93 Difference]: Finished difference Result 1505 states and 2388 transitions. [2024-11-16 08:44:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:20,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-16 08:44:20,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:20,257 INFO L225 Difference]: With dead ends: 1505 [2024-11-16 08:44:20,257 INFO L226 Difference]: Without dead ends: 1375 [2024-11-16 08:44:20,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:44:20,271 INFO L432 NwaCegarLoop]: 1075 mSDtfsCounter, 2486 mSDsluCounter, 6937 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 8012 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:20,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2486 Valid, 8012 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:20,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-16 08:44:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 310. [2024-11-16 08:44:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.4336569579288025) internal successors, (443), 309 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 443 transitions. [2024-11-16 08:44:20,345 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 443 transitions. Word has length 108 [2024-11-16 08:44:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:20,350 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 443 transitions. [2024-11-16 08:44:20,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:20,350 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 443 transitions. [2024-11-16 08:44:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:20,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:20,352 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] [2024-11-16 08:44:20,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:44:20,357 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:20,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:20,357 INFO L85 PathProgramCache]: Analyzing trace with hash 471700631, now seen corresponding path program 1 times [2024-11-16 08:44:20,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:20,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695464202] [2024-11-16 08:44:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:20,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:20,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:20,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695464202] [2024-11-16 08:44:20,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695464202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:20,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:20,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:20,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443960680] [2024-11-16 08:44:20,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:20,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:20,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:20,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:20,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:20,706 INFO L87 Difference]: Start difference. First operand 310 states and 443 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:20,991 INFO L93 Difference]: Finished difference Result 1611 states and 2470 transitions. [2024-11-16 08:44:20,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:20,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:20,996 INFO L225 Difference]: With dead ends: 1611 [2024-11-16 08:44:20,997 INFO L226 Difference]: Without dead ends: 1445 [2024-11-16 08:44:20,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:20,999 INFO L432 NwaCegarLoop]: 1039 mSDtfsCounter, 1752 mSDsluCounter, 3229 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:20,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 4268 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-16 08:44:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 495. [2024-11-16 08:44:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.4838056680161944) internal successors, (733), 494 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:21,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 733 transitions. [2024-11-16 08:44:21,023 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 733 transitions. Word has length 110 [2024-11-16 08:44:21,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:21,024 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 733 transitions. [2024-11-16 08:44:21,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 733 transitions. [2024-11-16 08:44:21,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:21,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:21,026 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] [2024-11-16 08:44:21,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:44:21,026 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:21,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:21,026 INFO L85 PathProgramCache]: Analyzing trace with hash -507162481, now seen corresponding path program 1 times [2024-11-16 08:44:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:21,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581873030] [2024-11-16 08:44:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:21,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:21,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:21,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581873030] [2024-11-16 08:44:21,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581873030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:21,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:21,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:21,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147045342] [2024-11-16 08:44:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:21,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:21,250 INFO L87 Difference]: Start difference. First operand 495 states and 733 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:21,577 INFO L93 Difference]: Finished difference Result 1796 states and 2760 transitions. [2024-11-16 08:44:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:21,585 INFO L225 Difference]: With dead ends: 1796 [2024-11-16 08:44:21,586 INFO L226 Difference]: Without dead ends: 1630 [2024-11-16 08:44:21,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:21,587 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 1743 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:21,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 4212 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:21,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-11-16 08:44:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 762. [2024-11-16 08:44:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 761 states have (on average 1.5124835742444152) internal successors, (1151), 761 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1151 transitions. [2024-11-16 08:44:21,604 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1151 transitions. Word has length 110 [2024-11-16 08:44:21,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:21,605 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1151 transitions. [2024-11-16 08:44:21,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1151 transitions. [2024-11-16 08:44:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:21,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:21,609 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] [2024-11-16 08:44:21,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:44:21,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:21,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:21,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1354770537, now seen corresponding path program 1 times [2024-11-16 08:44:21,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:21,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620841639] [2024-11-16 08:44:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:21,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:21,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:21,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620841639] [2024-11-16 08:44:21,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620841639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:21,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:21,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:21,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505072888] [2024-11-16 08:44:21,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:21,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:21,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:21,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:21,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:21,826 INFO L87 Difference]: Start difference. First operand 762 states and 1151 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:22,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:22,106 INFO L93 Difference]: Finished difference Result 1976 states and 3042 transitions. [2024-11-16 08:44:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:22,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:22,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:22,112 INFO L225 Difference]: With dead ends: 1976 [2024-11-16 08:44:22,112 INFO L226 Difference]: Without dead ends: 1810 [2024-11-16 08:44:22,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:22,114 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 1848 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:22,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 3756 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:22,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2024-11-16 08:44:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 942. [2024-11-16 08:44:22,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 941 states have (on average 1.5228480340063761) internal successors, (1433), 941 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:22,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1433 transitions. [2024-11-16 08:44:22,145 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1433 transitions. Word has length 110 [2024-11-16 08:44:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:22,145 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1433 transitions. [2024-11-16 08:44:22,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1433 transitions. [2024-11-16 08:44:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:22,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:22,147 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] [2024-11-16 08:44:22,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:44:22,148 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:22,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:22,148 INFO L85 PathProgramCache]: Analyzing trace with hash -863900273, now seen corresponding path program 1 times [2024-11-16 08:44:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:22,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750347638] [2024-11-16 08:44:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:22,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:22,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:22,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750347638] [2024-11-16 08:44:22,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750347638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:22,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:22,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:22,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054680718] [2024-11-16 08:44:22,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:22,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:22,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:22,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:22,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:22,396 INFO L87 Difference]: Start difference. First operand 942 states and 1433 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:22,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:22,642 INFO L93 Difference]: Finished difference Result 2151 states and 3316 transitions. [2024-11-16 08:44:22,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:22,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:22,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:22,651 INFO L225 Difference]: With dead ends: 2151 [2024-11-16 08:44:22,651 INFO L226 Difference]: Without dead ends: 1985 [2024-11-16 08:44:22,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:22,654 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 1954 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1954 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:22,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1954 Valid, 3182 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:22,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2024-11-16 08:44:22,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1117. [2024-11-16 08:44:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1116 states have (on average 1.5295698924731183) internal successors, (1707), 1116 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:22,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1707 transitions. [2024-11-16 08:44:22,677 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1707 transitions. Word has length 110 [2024-11-16 08:44:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:22,677 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1707 transitions. [2024-11-16 08:44:22,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:22,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1707 transitions. [2024-11-16 08:44:22,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:22,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:22,678 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] [2024-11-16 08:44:22,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:44:22,679 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:22,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:22,679 INFO L85 PathProgramCache]: Analyzing trace with hash -837789033, now seen corresponding path program 1 times [2024-11-16 08:44:22,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:22,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185886100] [2024-11-16 08:44:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:22,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185886100] [2024-11-16 08:44:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185886100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:22,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:22,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403764776] [2024-11-16 08:44:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:22,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:22,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:22,854 INFO L87 Difference]: Start difference. First operand 1117 states and 1707 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:23,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:23,071 INFO L93 Difference]: Finished difference Result 2321 states and 3582 transitions. [2024-11-16 08:44:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:23,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:23,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:23,077 INFO L225 Difference]: With dead ends: 2321 [2024-11-16 08:44:23,078 INFO L226 Difference]: Without dead ends: 2155 [2024-11-16 08:44:23,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:23,079 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 2057 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:23,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 3192 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2024-11-16 08:44:23,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 1287. [2024-11-16 08:44:23,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1286 states have (on average 1.5342146189735615) internal successors, (1973), 1286 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1973 transitions. [2024-11-16 08:44:23,101 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1973 transitions. Word has length 110 [2024-11-16 08:44:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:23,101 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1973 transitions. [2024-11-16 08:44:23,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1973 transitions. [2024-11-16 08:44:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:23,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:23,103 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] [2024-11-16 08:44:23,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:44:23,103 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:23,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash 876104335, now seen corresponding path program 1 times [2024-11-16 08:44:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:23,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596308925] [2024-11-16 08:44:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:23,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:23,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:23,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596308925] [2024-11-16 08:44:23,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596308925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:23,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:23,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:23,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581010333] [2024-11-16 08:44:23,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:23,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:23,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:23,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:23,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:23,278 INFO L87 Difference]: Start difference. First operand 1287 states and 1973 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:23,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:23,511 INFO L93 Difference]: Finished difference Result 2486 states and 3840 transitions. [2024-11-16 08:44:23,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:23,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:23,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:23,517 INFO L225 Difference]: With dead ends: 2486 [2024-11-16 08:44:23,518 INFO L226 Difference]: Without dead ends: 2320 [2024-11-16 08:44:23,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:23,519 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 2157 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:23,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 3498 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2024-11-16 08:44:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 1452. [2024-11-16 08:44:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 1.5375603032391454) internal successors, (2231), 1451 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:23,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 2231 transitions. [2024-11-16 08:44:23,544 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 2231 transitions. Word has length 110 [2024-11-16 08:44:23,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:23,544 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 2231 transitions. [2024-11-16 08:44:23,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:23,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 2231 transitions. [2024-11-16 08:44:23,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:23,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:23,546 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] [2024-11-16 08:44:23,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:44:23,546 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:23,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:23,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1083948591, now seen corresponding path program 1 times [2024-11-16 08:44:23,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:23,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470113886] [2024-11-16 08:44:23,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:23,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:23,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:23,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470113886] [2024-11-16 08:44:23,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470113886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:23,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:23,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978843235] [2024-11-16 08:44:23,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:23,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:23,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:23,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:23,759 INFO L87 Difference]: Start difference. First operand 1452 states and 2231 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:23,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:23,975 INFO L93 Difference]: Finished difference Result 2650 states and 4097 transitions. [2024-11-16 08:44:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:23,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:23,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:23,982 INFO L225 Difference]: With dead ends: 2650 [2024-11-16 08:44:23,982 INFO L226 Difference]: Without dead ends: 2484 [2024-11-16 08:44:23,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:23,985 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 2253 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:23,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 3757 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:23,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2024-11-16 08:44:24,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 1616. [2024-11-16 08:44:24,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1615 states have (on average 1.5405572755417956) internal successors, (2488), 1615 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2488 transitions. [2024-11-16 08:44:24,014 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2488 transitions. Word has length 110 [2024-11-16 08:44:24,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:24,015 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2488 transitions. [2024-11-16 08:44:24,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2488 transitions. [2024-11-16 08:44:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:44:24,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:24,016 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] [2024-11-16 08:44:24,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:44:24,016 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:24,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 109401988, now seen corresponding path program 1 times [2024-11-16 08:44:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:24,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26176901] [2024-11-16 08:44:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:24,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:24,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:24,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26176901] [2024-11-16 08:44:24,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26176901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:24,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:24,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:24,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093324720] [2024-11-16 08:44:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:24,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:24,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:24,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:24,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:24,404 INFO L87 Difference]: Start difference. First operand 1616 states and 2488 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:24,679 INFO L93 Difference]: Finished difference Result 3014 states and 4675 transitions. [2024-11-16 08:44:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-16 08:44:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:24,684 INFO L225 Difference]: With dead ends: 3014 [2024-11-16 08:44:24,684 INFO L226 Difference]: Without dead ends: 1618 [2024-11-16 08:44:24,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:24,686 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 668 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:24,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1349 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:24,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-11-16 08:44:24,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1616. [2024-11-16 08:44:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1615 states have (on average 1.534984520123839) internal successors, (2479), 1615 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2479 transitions. [2024-11-16 08:44:24,705 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2479 transitions. Word has length 111 [2024-11-16 08:44:24,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:24,706 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2479 transitions. [2024-11-16 08:44:24,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:24,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2479 transitions. [2024-11-16 08:44:24,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 08:44:24,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:24,707 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] [2024-11-16 08:44:24,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:44:24,707 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:24,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:24,708 INFO L85 PathProgramCache]: Analyzing trace with hash -490200429, now seen corresponding path program 1 times [2024-11-16 08:44:24,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:24,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817418491] [2024-11-16 08:44:24,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:24,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:24,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:24,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817418491] [2024-11-16 08:44:24,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817418491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:24,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:24,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487444232] [2024-11-16 08:44:24,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:24,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:24,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:24,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:24,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:24,818 INFO L87 Difference]: Start difference. First operand 1616 states and 2479 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:25,010 INFO L93 Difference]: Finished difference Result 4668 states and 7228 transitions. [2024-11-16 08:44:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-16 08:44:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:25,018 INFO L225 Difference]: With dead ends: 4668 [2024-11-16 08:44:25,019 INFO L226 Difference]: Without dead ends: 3109 [2024-11-16 08:44:25,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:44:25,037 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 1093 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:25,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 243 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:25,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2024-11-16 08:44:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3107. [2024-11-16 08:44:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.5415325177076626) internal successors, (4788), 3106 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4788 transitions. [2024-11-16 08:44:25,078 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4788 transitions. Word has length 112 [2024-11-16 08:44:25,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:25,078 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4788 transitions. [2024-11-16 08:44:25,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4788 transitions. [2024-11-16 08:44:25,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 08:44:25,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:25,080 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] [2024-11-16 08:44:25,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:44:25,080 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:25,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:25,081 INFO L85 PathProgramCache]: Analyzing trace with hash 27371026, now seen corresponding path program 1 times [2024-11-16 08:44:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:25,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094422646] [2024-11-16 08:44:25,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:25,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:25,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:25,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094422646] [2024-11-16 08:44:25,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094422646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:25,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:25,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:25,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217382194] [2024-11-16 08:44:25,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:25,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:25,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:25,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:25,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:25,188 INFO L87 Difference]: Start difference. First operand 3107 states and 4788 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:25,315 INFO L93 Difference]: Finished difference Result 6145 states and 9504 transitions. [2024-11-16 08:44:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:25,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-16 08:44:25,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:25,323 INFO L225 Difference]: With dead ends: 6145 [2024-11-16 08:44:25,323 INFO L226 Difference]: Without dead ends: 3107 [2024-11-16 08:44:25,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:44:25,328 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 714 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:25,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 176 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:25,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-16 08:44:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-16 08:44:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.53026400515132) internal successors, (4753), 3106 states have internal predecessors, (4753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4753 transitions. [2024-11-16 08:44:25,369 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4753 transitions. Word has length 113 [2024-11-16 08:44:25,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:25,369 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4753 transitions. [2024-11-16 08:44:25,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4753 transitions. [2024-11-16 08:44:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:44:25,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:25,371 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] [2024-11-16 08:44:25,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:44:25,371 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:25,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:25,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1262257431, now seen corresponding path program 1 times [2024-11-16 08:44:25,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:25,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328100556] [2024-11-16 08:44:25,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:25,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:25,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328100556] [2024-11-16 08:44:25,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328100556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:25,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:25,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:25,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759429687] [2024-11-16 08:44:25,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:25,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:25,469 INFO L87 Difference]: Start difference. First operand 3107 states and 4753 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:25,605 INFO L93 Difference]: Finished difference Result 6133 states and 9420 transitions. [2024-11-16 08:44:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:25,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-16 08:44:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:25,615 INFO L225 Difference]: With dead ends: 6133 [2024-11-16 08:44:25,615 INFO L226 Difference]: Without dead ends: 3107 [2024-11-16 08:44:25,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:44:25,620 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 675 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:25,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 204 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:25,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-16 08:44:25,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-16 08:44:25,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.5189954925949776) internal successors, (4718), 3106 states have internal predecessors, (4718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4718 transitions. [2024-11-16 08:44:25,660 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4718 transitions. Word has length 114 [2024-11-16 08:44:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:25,661 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4718 transitions. [2024-11-16 08:44:25,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4718 transitions. [2024-11-16 08:44:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:44:25,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:25,662 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] [2024-11-16 08:44:25,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:44:25,663 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:25,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1726788722, now seen corresponding path program 1 times [2024-11-16 08:44:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:25,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819158536] [2024-11-16 08:44:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:25,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:25,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:25,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819158536] [2024-11-16 08:44:25,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819158536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:25,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:25,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:25,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122540108] [2024-11-16 08:44:25,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:25,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:25,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:25,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:25,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:25,751 INFO L87 Difference]: Start difference. First operand 3107 states and 4718 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:25,877 INFO L93 Difference]: Finished difference Result 6141 states and 9360 transitions. [2024-11-16 08:44:25,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:25,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-16 08:44:25,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:25,886 INFO L225 Difference]: With dead ends: 6141 [2024-11-16 08:44:25,887 INFO L226 Difference]: Without dead ends: 3107 [2024-11-16 08:44:25,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:44:25,890 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 690 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:25,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 184 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:25,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-16 08:44:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-16 08:44:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.5077269800386348) internal successors, (4683), 3106 states have internal predecessors, (4683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4683 transitions. [2024-11-16 08:44:25,925 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4683 transitions. Word has length 115 [2024-11-16 08:44:25,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:25,925 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4683 transitions. [2024-11-16 08:44:25,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4683 transitions. [2024-11-16 08:44:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:44:25,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:25,927 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] [2024-11-16 08:44:25,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:44:25,927 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:25,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:25,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1311279497, now seen corresponding path program 1 times [2024-11-16 08:44:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:25,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046153440] [2024-11-16 08:44:25,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:25,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:26,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:26,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046153440] [2024-11-16 08:44:26,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046153440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:26,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:26,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:26,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969201787] [2024-11-16 08:44:26,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:26,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:26,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:26,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:26,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:26,015 INFO L87 Difference]: Start difference. First operand 3107 states and 4683 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:26,149 INFO L93 Difference]: Finished difference Result 6153 states and 9304 transitions. [2024-11-16 08:44:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:26,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-16 08:44:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:26,153 INFO L225 Difference]: With dead ends: 6153 [2024-11-16 08:44:26,153 INFO L226 Difference]: Without dead ends: 3107 [2024-11-16 08:44:26,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:44:26,157 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 718 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:26,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 160 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:26,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-16 08:44:26,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-16 08:44:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4964584674822923) internal successors, (4648), 3106 states have internal predecessors, (4648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4648 transitions. [2024-11-16 08:44:26,190 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4648 transitions. Word has length 116 [2024-11-16 08:44:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:26,190 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4648 transitions. [2024-11-16 08:44:26,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4648 transitions. [2024-11-16 08:44:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 08:44:26,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:26,192 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] [2024-11-16 08:44:26,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:44:26,192 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:26,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:26,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1730530002, now seen corresponding path program 1 times [2024-11-16 08:44:26,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:26,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196425383] [2024-11-16 08:44:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:26,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:26,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:26,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196425383] [2024-11-16 08:44:26,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196425383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:26,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:26,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:26,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576770410] [2024-11-16 08:44:26,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:26,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:26,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:26,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:26,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:26,277 INFO L87 Difference]: Start difference. First operand 3107 states and 4648 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:26,391 INFO L93 Difference]: Finished difference Result 6149 states and 9230 transitions. [2024-11-16 08:44:26,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:26,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-16 08:44:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:26,396 INFO L225 Difference]: With dead ends: 6149 [2024-11-16 08:44:26,397 INFO L226 Difference]: Without dead ends: 3107 [2024-11-16 08:44:26,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:44:26,400 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 700 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:26,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 168 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-16 08:44:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-16 08:44:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4851899549259497) internal successors, (4613), 3106 states have internal predecessors, (4613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4613 transitions. [2024-11-16 08:44:26,433 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4613 transitions. Word has length 117 [2024-11-16 08:44:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:26,434 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4613 transitions. [2024-11-16 08:44:26,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4613 transitions. [2024-11-16 08:44:26,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 08:44:26,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:26,435 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] [2024-11-16 08:44:26,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:44:26,435 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:26,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:26,436 INFO L85 PathProgramCache]: Analyzing trace with hash -341993733, now seen corresponding path program 1 times [2024-11-16 08:44:26,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:26,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734873031] [2024-11-16 08:44:26,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:26,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:26,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:26,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734873031] [2024-11-16 08:44:26,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734873031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:26,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:26,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:26,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565373090] [2024-11-16 08:44:26,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:26,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:26,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:26,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:26,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:26,525 INFO L87 Difference]: Start difference. First operand 3107 states and 4613 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:26,669 INFO L93 Difference]: Finished difference Result 6137 states and 9148 transitions. [2024-11-16 08:44:26,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:26,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-16 08:44:26,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:26,674 INFO L225 Difference]: With dead ends: 6137 [2024-11-16 08:44:26,674 INFO L226 Difference]: Without dead ends: 3107 [2024-11-16 08:44:26,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:44:26,678 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 658 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:26,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 192 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:26,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-16 08:44:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-16 08:44:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4739214423696072) internal successors, (4578), 3106 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4578 transitions. [2024-11-16 08:44:26,720 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4578 transitions. Word has length 118 [2024-11-16 08:44:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:26,720 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4578 transitions. [2024-11-16 08:44:26,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4578 transitions. [2024-11-16 08:44:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:44:26,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:26,722 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] [2024-11-16 08:44:26,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:44:26,722 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:26,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 830788102, now seen corresponding path program 1 times [2024-11-16 08:44:26,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:26,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003256143] [2024-11-16 08:44:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:26,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:27,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:27,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003256143] [2024-11-16 08:44:27,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003256143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:27,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:27,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408624798] [2024-11-16 08:44:27,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:27,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:27,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:27,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:27,015 INFO L87 Difference]: Start difference. First operand 3107 states and 4578 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:27,427 INFO L93 Difference]: Finished difference Result 8936 states and 13184 transitions. [2024-11-16 08:44:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:27,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-16 08:44:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:27,436 INFO L225 Difference]: With dead ends: 8936 [2024-11-16 08:44:27,436 INFO L226 Difference]: Without dead ends: 6078 [2024-11-16 08:44:27,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:44:27,471 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 698 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:27,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 702 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:44:27,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2024-11-16 08:44:27,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 3107. [2024-11-16 08:44:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4703799098518995) internal successors, (4567), 3106 states have internal predecessors, (4567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4567 transitions. [2024-11-16 08:44:27,515 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4567 transitions. Word has length 119 [2024-11-16 08:44:27,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:27,515 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4567 transitions. [2024-11-16 08:44:27,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4567 transitions. [2024-11-16 08:44:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:44:27,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:27,516 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] [2024-11-16 08:44:27,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:44:27,517 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:27,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:27,517 INFO L85 PathProgramCache]: Analyzing trace with hash 500161550, now seen corresponding path program 1 times [2024-11-16 08:44:27,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:27,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219115120] [2024-11-16 08:44:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:27,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:27,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:27,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219115120] [2024-11-16 08:44:27,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219115120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:27,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:27,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:44:27,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52076192] [2024-11-16 08:44:27,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:27,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:44:27,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:44:27,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:27,935 INFO L87 Difference]: Start difference. First operand 3107 states and 4567 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:28,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:28,559 INFO L93 Difference]: Finished difference Result 9086 states and 13328 transitions. [2024-11-16 08:44:28,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:44:28,560 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-16 08:44:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:28,569 INFO L225 Difference]: With dead ends: 9086 [2024-11-16 08:44:28,569 INFO L226 Difference]: Without dead ends: 6285 [2024-11-16 08:44:28,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:44:28,574 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1010 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:28,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 990 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6285 states. [2024-11-16 08:44:28,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 3230. [2024-11-16 08:44:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3230 states, 3229 states have (on average 1.4663982657169403) internal successors, (4735), 3229 states have internal predecessors, (4735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3230 states to 3230 states and 4735 transitions. [2024-11-16 08:44:28,620 INFO L78 Accepts]: Start accepts. Automaton has 3230 states and 4735 transitions. Word has length 119 [2024-11-16 08:44:28,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:28,620 INFO L471 AbstractCegarLoop]: Abstraction has 3230 states and 4735 transitions. [2024-11-16 08:44:28,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:28,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3230 states and 4735 transitions. [2024-11-16 08:44:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:44:28,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:28,622 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] [2024-11-16 08:44:28,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:44:28,622 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:28,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:28,622 INFO L85 PathProgramCache]: Analyzing trace with hash 410548742, now seen corresponding path program 1 times [2024-11-16 08:44:28,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:28,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097051573] [2024-11-16 08:44:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:28,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:29,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:29,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097051573] [2024-11-16 08:44:29,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097051573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:29,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:29,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:44:29,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025050783] [2024-11-16 08:44:29,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:29,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:44:29,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:29,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:44:29,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:44:29,019 INFO L87 Difference]: Start difference. First operand 3230 states and 4735 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:29,623 INFO L93 Difference]: Finished difference Result 8986 states and 13208 transitions. [2024-11-16 08:44:29,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:29,623 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-16 08:44:29,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:29,632 INFO L225 Difference]: With dead ends: 8986 [2024-11-16 08:44:29,632 INFO L226 Difference]: Without dead ends: 6183 [2024-11-16 08:44:29,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:44:29,637 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1137 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:29,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1023 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6183 states. [2024-11-16 08:44:29,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6183 to 3107. [2024-11-16 08:44:29,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4661944623309724) internal successors, (4554), 3106 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4554 transitions. [2024-11-16 08:44:29,685 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4554 transitions. Word has length 119 [2024-11-16 08:44:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:29,685 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4554 transitions. [2024-11-16 08:44:29,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4554 transitions. [2024-11-16 08:44:29,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:44:29,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:29,686 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] [2024-11-16 08:44:29,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:44:29,687 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:29,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2075061754, now seen corresponding path program 1 times [2024-11-16 08:44:29,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:29,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822826280] [2024-11-16 08:44:29,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:29,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:30,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:30,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:30,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822826280] [2024-11-16 08:44:30,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822826280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:30,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:30,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:44:30,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821265706] [2024-11-16 08:44:30,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:30,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:44:30,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:30,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:44:30,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:44:30,152 INFO L87 Difference]: Start difference. First operand 3107 states and 4554 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:30,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:30,723 INFO L93 Difference]: Finished difference Result 9056 states and 13312 transitions. [2024-11-16 08:44:30,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:30,724 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-16 08:44:30,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:30,732 INFO L225 Difference]: With dead ends: 9056 [2024-11-16 08:44:30,733 INFO L226 Difference]: Without dead ends: 6123 [2024-11-16 08:44:30,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:44:30,738 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 776 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:30,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 880 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:30,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states. [2024-11-16 08:44:30,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6123 to 3107. [2024-11-16 08:44:30,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4642627173213136) internal successors, (4548), 3106 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4548 transitions. [2024-11-16 08:44:30,782 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4548 transitions. Word has length 119 [2024-11-16 08:44:30,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:30,782 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4548 transitions. [2024-11-16 08:44:30,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:30,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4548 transitions. [2024-11-16 08:44:30,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 08:44:30,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:30,784 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] [2024-11-16 08:44:30,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:44:30,784 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:30,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:30,784 INFO L85 PathProgramCache]: Analyzing trace with hash 55800642, now seen corresponding path program 1 times [2024-11-16 08:44:30,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:30,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095946062] [2024-11-16 08:44:30,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:30,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095946062] [2024-11-16 08:44:31,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095946062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:31,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:31,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:44:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095072293] [2024-11-16 08:44:31,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:31,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:44:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:31,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:44:31,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:44:31,141 INFO L87 Difference]: Start difference. First operand 3107 states and 4548 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:31,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:31,856 INFO L93 Difference]: Finished difference Result 9011 states and 13234 transitions. [2024-11-16 08:44:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:31,856 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-16 08:44:31,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:31,863 INFO L225 Difference]: With dead ends: 9011 [2024-11-16 08:44:31,864 INFO L226 Difference]: Without dead ends: 6108 [2024-11-16 08:44:31,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:44:31,868 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 855 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:31,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1424 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:44:31,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2024-11-16 08:44:31,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 3107. [2024-11-16 08:44:31,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4613650998068255) internal successors, (4539), 3106 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4539 transitions. [2024-11-16 08:44:31,911 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4539 transitions. Word has length 120 [2024-11-16 08:44:31,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:31,911 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4539 transitions. [2024-11-16 08:44:31,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:31,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4539 transitions. [2024-11-16 08:44:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:44:31,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:31,913 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] [2024-11-16 08:44:31,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:44:31,913 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:31,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:31,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1379037534, now seen corresponding path program 1 times [2024-11-16 08:44:31,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:31,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959825987] [2024-11-16 08:44:31,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:31,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:32,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:32,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959825987] [2024-11-16 08:44:32,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959825987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:32,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:32,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:44:32,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347028049] [2024-11-16 08:44:32,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:32,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:32,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:32,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:32,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:32,231 INFO L87 Difference]: Start difference. First operand 3107 states and 4539 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:32,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:32,606 INFO L93 Difference]: Finished difference Result 8784 states and 12937 transitions. [2024-11-16 08:44:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:32,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-16 08:44:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:32,617 INFO L225 Difference]: With dead ends: 8784 [2024-11-16 08:44:32,618 INFO L226 Difference]: Without dead ends: 5897 [2024-11-16 08:44:32,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:32,622 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1062 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:32,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 798 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:44:32,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5897 states. [2024-11-16 08:44:32,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5897 to 3107. [2024-11-16 08:44:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4610431423052157) internal successors, (4538), 3106 states have internal predecessors, (4538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4538 transitions. [2024-11-16 08:44:32,664 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4538 transitions. Word has length 121 [2024-11-16 08:44:32,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:32,665 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4538 transitions. [2024-11-16 08:44:32,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4538 transitions. [2024-11-16 08:44:32,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:44:32,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:32,668 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] [2024-11-16 08:44:32,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:44:32,668 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:32,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:32,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1379620834, now seen corresponding path program 1 times [2024-11-16 08:44:32,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:32,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653309821] [2024-11-16 08:44:32,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:32,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:33,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:33,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653309821] [2024-11-16 08:44:33,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653309821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:33,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:33,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:33,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307412405] [2024-11-16 08:44:33,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:33,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:33,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:33,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:33,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:33,041 INFO L87 Difference]: Start difference. First operand 3107 states and 4538 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:33,520 INFO L93 Difference]: Finished difference Result 6456 states and 9449 transitions. [2024-11-16 08:44:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:33,521 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-16 08:44:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:33,526 INFO L225 Difference]: With dead ends: 6456 [2024-11-16 08:44:33,526 INFO L226 Difference]: Without dead ends: 3508 [2024-11-16 08:44:33,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:44:33,530 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1147 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:33,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 1048 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:44:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2024-11-16 08:44:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3107. [2024-11-16 08:44:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 3106 states have (on average 1.4600772698003863) internal successors, (4535), 3106 states have internal predecessors, (4535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4535 transitions. [2024-11-16 08:44:33,563 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4535 transitions. Word has length 122 [2024-11-16 08:44:33,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:33,564 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4535 transitions. [2024-11-16 08:44:33,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4535 transitions. [2024-11-16 08:44:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:44:33,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:33,565 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] [2024-11-16 08:44:33,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:44:33,566 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:33,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:33,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1779226282, now seen corresponding path program 1 times [2024-11-16 08:44:33,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:33,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453523825] [2024-11-16 08:44:33,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:33,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:33,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:33,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453523825] [2024-11-16 08:44:33,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453523825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:33,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:33,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277408562] [2024-11-16 08:44:33,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:33,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:33,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:33,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:33,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:33,867 INFO L87 Difference]: Start difference. First operand 3107 states and 4535 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:34,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:34,378 INFO L93 Difference]: Finished difference Result 8992 states and 13188 transitions. [2024-11-16 08:44:34,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:34,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-16 08:44:34,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:34,387 INFO L225 Difference]: With dead ends: 8992 [2024-11-16 08:44:34,387 INFO L226 Difference]: Without dead ends: 6202 [2024-11-16 08:44:34,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:44:34,392 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1063 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:34,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1035 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:34,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6202 states. [2024-11-16 08:44:34,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6202 to 3152. [2024-11-16 08:44:34,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 3151 states have (on average 1.458267216756585) internal successors, (4595), 3151 states have internal predecessors, (4595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 4595 transitions. [2024-11-16 08:44:34,452 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 4595 transitions. Word has length 123 [2024-11-16 08:44:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:34,453 INFO L471 AbstractCegarLoop]: Abstraction has 3152 states and 4595 transitions. [2024-11-16 08:44:34,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 4595 transitions. [2024-11-16 08:44:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:34,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:34,455 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] [2024-11-16 08:44:34,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:44:34,455 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:34,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1595592350, now seen corresponding path program 1 times [2024-11-16 08:44:34,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:34,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801313815] [2024-11-16 08:44:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:37,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:37,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801313815] [2024-11-16 08:44:37,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801313815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:37,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:37,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2024-11-16 08:44:37,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424779619] [2024-11-16 08:44:37,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:37,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-16 08:44:37,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:37,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-16 08:44:37,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1925, Unknown=0, NotChecked=0, Total=2070 [2024-11-16 08:44:37,861 INFO L87 Difference]: Start difference. First operand 3152 states and 4595 transitions. Second operand has 46 states, 46 states have (on average 2.6956521739130435) internal successors, (124), 46 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:47,916 INFO L93 Difference]: Finished difference Result 5663 states and 8274 transitions. [2024-11-16 08:44:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-16 08:44:47,916 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.6956521739130435) internal successors, (124), 46 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:47,922 INFO L225 Difference]: With dead ends: 5663 [2024-11-16 08:44:47,923 INFO L226 Difference]: Without dead ends: 5333 [2024-11-16 08:44:47,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1116, Invalid=6366, Unknown=0, NotChecked=0, Total=7482 [2024-11-16 08:44:47,926 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 2327 mSDsluCounter, 17311 mSDsCounter, 0 mSdLazyCounter, 12462 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 18053 SdHoareTripleChecker+Invalid, 12494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 12462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:47,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 18053 Invalid, 12494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 12462 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-16 08:44:47,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2024-11-16 08:44:47,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 3199. [2024-11-16 08:44:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3198 states have (on average 1.4571607254534085) internal successors, (4660), 3198 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 4660 transitions. [2024-11-16 08:44:47,966 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 4660 transitions. Word has length 124 [2024-11-16 08:44:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:47,966 INFO L471 AbstractCegarLoop]: Abstraction has 3199 states and 4660 transitions. [2024-11-16 08:44:47,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.6956521739130435) internal successors, (124), 46 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:47,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 4660 transitions. [2024-11-16 08:44:47,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:47,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:47,968 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] [2024-11-16 08:44:47,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:44:47,969 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:47,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1831094153, now seen corresponding path program 1 times [2024-11-16 08:44:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:47,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116776415] [2024-11-16 08:44:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:47,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:48,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:48,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116776415] [2024-11-16 08:44:48,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116776415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:48,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:48,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:44:48,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843763066] [2024-11-16 08:44:48,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:48,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:44:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:48,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:44:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:44:48,062 INFO L87 Difference]: Start difference. First operand 3199 states and 4660 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:48,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:48,089 INFO L93 Difference]: Finished difference Result 8643 states and 12754 transitions. [2024-11-16 08:44:48,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:44:48,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:48,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:48,096 INFO L225 Difference]: With dead ends: 8643 [2024-11-16 08:44:48,096 INFO L226 Difference]: Without dead ends: 5853 [2024-11-16 08:44:48,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:44:48,101 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 133 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:48,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 563 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:44:48,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5853 states. [2024-11-16 08:44:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5853 to 5715. [2024-11-16 08:44:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5715 states, 5714 states have (on average 1.4581729086454323) internal successors, (8332), 5714 states have internal predecessors, (8332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:48,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5715 states to 5715 states and 8332 transitions. [2024-11-16 08:44:48,190 INFO L78 Accepts]: Start accepts. Automaton has 5715 states and 8332 transitions. Word has length 124 [2024-11-16 08:44:48,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:48,191 INFO L471 AbstractCegarLoop]: Abstraction has 5715 states and 8332 transitions. [2024-11-16 08:44:48,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5715 states and 8332 transitions. [2024-11-16 08:44:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:48,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:48,192 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] [2024-11-16 08:44:48,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:44:48,193 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:48,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash -144833673, now seen corresponding path program 1 times [2024-11-16 08:44:48,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:48,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616115277] [2024-11-16 08:44:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:48,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:48,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:48,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616115277] [2024-11-16 08:44:48,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616115277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:48,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:48,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:44:48,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020036513] [2024-11-16 08:44:48,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:48,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:44:48,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:44:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:44:48,671 INFO L87 Difference]: Start difference. First operand 5715 states and 8332 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:49,002 INFO L93 Difference]: Finished difference Result 12290 states and 18023 transitions. [2024-11-16 08:44:49,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:49,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:49,013 INFO L225 Difference]: With dead ends: 12290 [2024-11-16 08:44:49,013 INFO L226 Difference]: Without dead ends: 10940 [2024-11-16 08:44:49,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:44:49,019 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 888 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:49,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1481 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:49,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10940 states. [2024-11-16 08:44:49,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10940 to 5634. [2024-11-16 08:44:49,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 5633 states have (on average 1.4596129948517664) internal successors, (8222), 5633 states have internal predecessors, (8222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 8222 transitions. [2024-11-16 08:44:49,106 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 8222 transitions. Word has length 124 [2024-11-16 08:44:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:49,107 INFO L471 AbstractCegarLoop]: Abstraction has 5634 states and 8222 transitions. [2024-11-16 08:44:49,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 12 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 8222 transitions. [2024-11-16 08:44:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:49,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:49,108 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] [2024-11-16 08:44:49,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:44:49,109 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:49,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1815787306, now seen corresponding path program 1 times [2024-11-16 08:44:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:49,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266413073] [2024-11-16 08:44:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:49,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:49,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:49,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:49,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266413073] [2024-11-16 08:44:49,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266413073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:49,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:49,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:44:49,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724158532] [2024-11-16 08:44:49,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:49,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:44:49,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:44:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:49,701 INFO L87 Difference]: Start difference. First operand 5634 states and 8222 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:50,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:50,314 INFO L93 Difference]: Finished difference Result 22902 states and 33682 transitions. [2024-11-16 08:44:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:44:50,314 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:50,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:50,336 INFO L225 Difference]: With dead ends: 22902 [2024-11-16 08:44:50,336 INFO L226 Difference]: Without dead ends: 21652 [2024-11-16 08:44:50,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:44:50,345 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 1547 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:50,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 2817 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:50,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21652 states. [2024-11-16 08:44:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21652 to 5662. [2024-11-16 08:44:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5662 states, 5661 states have (on average 1.4598127539304009) internal successors, (8264), 5661 states have internal predecessors, (8264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5662 states to 5662 states and 8264 transitions. [2024-11-16 08:44:50,520 INFO L78 Accepts]: Start accepts. Automaton has 5662 states and 8264 transitions. Word has length 124 [2024-11-16 08:44:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:50,520 INFO L471 AbstractCegarLoop]: Abstraction has 5662 states and 8264 transitions. [2024-11-16 08:44:50,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:50,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5662 states and 8264 transitions. [2024-11-16 08:44:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:50,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:50,521 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] [2024-11-16 08:44:50,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:44:50,521 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:50,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1405198313, now seen corresponding path program 1 times [2024-11-16 08:44:50,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:50,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550476895] [2024-11-16 08:44:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:51,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:51,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550476895] [2024-11-16 08:44:51,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550476895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:51,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:51,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:44:51,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116444489] [2024-11-16 08:44:51,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:51,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:44:51,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:44:51,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:51,057 INFO L87 Difference]: Start difference. First operand 5662 states and 8264 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:51,617 INFO L93 Difference]: Finished difference Result 23214 states and 34062 transitions. [2024-11-16 08:44:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:44:51,618 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:51,679 INFO L225 Difference]: With dead ends: 23214 [2024-11-16 08:44:51,679 INFO L226 Difference]: Without dead ends: 21920 [2024-11-16 08:44:51,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:44:51,684 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 1330 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 3767 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:51,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 3767 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21920 states. [2024-11-16 08:44:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21920 to 5640. [2024-11-16 08:44:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5640 states, 5639 states have (on average 1.458769285334279) internal successors, (8226), 5639 states have internal predecessors, (8226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:51,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 8226 transitions. [2024-11-16 08:44:51,852 INFO L78 Accepts]: Start accepts. Automaton has 5640 states and 8226 transitions. Word has length 124 [2024-11-16 08:44:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:51,852 INFO L471 AbstractCegarLoop]: Abstraction has 5640 states and 8226 transitions. [2024-11-16 08:44:51,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5640 states and 8226 transitions. [2024-11-16 08:44:51,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:51,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:51,854 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] [2024-11-16 08:44:51,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:44:51,854 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:51,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:51,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1806562577, now seen corresponding path program 1 times [2024-11-16 08:44:51,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:51,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535450612] [2024-11-16 08:44:51,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:51,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:52,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:52,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535450612] [2024-11-16 08:44:52,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535450612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:52,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:52,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:44:52,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141226008] [2024-11-16 08:44:52,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:52,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:44:52,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:52,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:44:52,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:44:52,444 INFO L87 Difference]: Start difference. First operand 5640 states and 8226 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:53,002 INFO L93 Difference]: Finished difference Result 12336 states and 18068 transitions. [2024-11-16 08:44:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:53,002 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:53,013 INFO L225 Difference]: With dead ends: 12336 [2024-11-16 08:44:53,013 INFO L226 Difference]: Without dead ends: 11022 [2024-11-16 08:44:53,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:44:53,018 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1307 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:53,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1966 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2024-11-16 08:44:53,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5608. [2024-11-16 08:44:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5608 states, 5607 states have (on average 1.458533975387908) internal successors, (8178), 5607 states have internal predecessors, (8178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:53,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 8178 transitions. [2024-11-16 08:44:53,095 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 8178 transitions. Word has length 124 [2024-11-16 08:44:53,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:53,095 INFO L471 AbstractCegarLoop]: Abstraction has 5608 states and 8178 transitions. [2024-11-16 08:44:53,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 8178 transitions. [2024-11-16 08:44:53,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:53,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:53,096 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] [2024-11-16 08:44:53,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:44:53,097 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:53,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:53,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1570469433, now seen corresponding path program 1 times [2024-11-16 08:44:53,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:53,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800258594] [2024-11-16 08:44:53,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:53,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:53,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:53,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800258594] [2024-11-16 08:44:53,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800258594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:53,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:53,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:44:53,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889915082] [2024-11-16 08:44:53,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:53,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:44:53,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:53,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:44:53,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:44:53,598 INFO L87 Difference]: Start difference. First operand 5608 states and 8178 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:54,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:54,038 INFO L93 Difference]: Finished difference Result 12240 states and 17938 transitions. [2024-11-16 08:44:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:54,039 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:54,049 INFO L225 Difference]: With dead ends: 12240 [2024-11-16 08:44:54,050 INFO L226 Difference]: Without dead ends: 10906 [2024-11-16 08:44:54,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:44:54,054 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 1319 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:54,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1760 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2024-11-16 08:44:54,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 5536. [2024-11-16 08:44:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5536 states, 5535 states have (on average 1.4605239385727191) internal successors, (8084), 5535 states have internal predecessors, (8084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5536 states to 5536 states and 8084 transitions. [2024-11-16 08:44:54,128 INFO L78 Accepts]: Start accepts. Automaton has 5536 states and 8084 transitions. Word has length 124 [2024-11-16 08:44:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:54,128 INFO L471 AbstractCegarLoop]: Abstraction has 5536 states and 8084 transitions. [2024-11-16 08:44:54,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5536 states and 8084 transitions. [2024-11-16 08:44:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:44:54,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:54,130 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] [2024-11-16 08:44:54,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 08:44:54,130 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:54,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:54,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1391189151, now seen corresponding path program 1 times [2024-11-16 08:44:54,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:54,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867017943] [2024-11-16 08:44:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:54,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:54,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:54,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:54,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867017943] [2024-11-16 08:44:54,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867017943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:54,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:54,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:44:54,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031680496] [2024-11-16 08:44:54,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:54,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:44:54,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:54,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:44:54,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:54,639 INFO L87 Difference]: Start difference. First operand 5536 states and 8084 transitions. Second operand has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:55,068 INFO L93 Difference]: Finished difference Result 12156 states and 17828 transitions. [2024-11-16 08:44:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:55,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 08:44:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:55,080 INFO L225 Difference]: With dead ends: 12156 [2024-11-16 08:44:55,080 INFO L226 Difference]: Without dead ends: 10842 [2024-11-16 08:44:55,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:44:55,085 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 726 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:55,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 2946 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:55,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10842 states. [2024-11-16 08:44:55,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10842 to 5472. [2024-11-16 08:44:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5472 states, 5471 states have (on average 1.4629866569182965) internal successors, (8004), 5471 states have internal predecessors, (8004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5472 states to 5472 states and 8004 transitions. [2024-11-16 08:44:55,161 INFO L78 Accepts]: Start accepts. Automaton has 5472 states and 8004 transitions. Word has length 124 [2024-11-16 08:44:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:55,161 INFO L471 AbstractCegarLoop]: Abstraction has 5472 states and 8004 transitions. [2024-11-16 08:44:55,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.857142857142858) internal successors, (124), 14 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states and 8004 transitions. [2024-11-16 08:44:55,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:44:55,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:55,162 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] [2024-11-16 08:44:55,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 08:44:55,163 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:55,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:55,163 INFO L85 PathProgramCache]: Analyzing trace with hash -238906600, now seen corresponding path program 1 times [2024-11-16 08:44:55,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:55,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828415027] [2024-11-16 08:44:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:55,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:58,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:58,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828415027] [2024-11-16 08:44:58,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828415027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:58,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:58,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2024-11-16 08:44:58,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420912270] [2024-11-16 08:44:58,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:58,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-16 08:44:58,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:58,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-16 08:44:58,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1686, Unknown=0, NotChecked=0, Total=1806 [2024-11-16 08:44:58,001 INFO L87 Difference]: Start difference. First operand 5472 states and 8004 transitions. Second operand has 43 states, 43 states have (on average 2.9302325581395348) internal successors, (126), 43 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:03,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:03,354 INFO L93 Difference]: Finished difference Result 10810 states and 15864 transitions. [2024-11-16 08:45:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-16 08:45:03,355 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.9302325581395348) internal successors, (126), 43 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 08:45:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:03,359 INFO L225 Difference]: With dead ends: 10810 [2024-11-16 08:45:03,359 INFO L226 Difference]: Without dead ends: 5504 [2024-11-16 08:45:03,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=899, Invalid=5743, Unknown=0, NotChecked=0, Total=6642 [2024-11-16 08:45:03,365 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 869 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 4063 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 4660 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:03,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 4660 Invalid, 4084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4063 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 08:45:03,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5504 states. [2024-11-16 08:45:03,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5504 to 5499. [2024-11-16 08:45:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 1.4616224081484177) internal successors, (8036), 5498 states have internal predecessors, (8036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 8036 transitions. [2024-11-16 08:45:03,412 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 8036 transitions. Word has length 126 [2024-11-16 08:45:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:03,412 INFO L471 AbstractCegarLoop]: Abstraction has 5499 states and 8036 transitions. [2024-11-16 08:45:03,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.9302325581395348) internal successors, (126), 43 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 8036 transitions. [2024-11-16 08:45:03,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:45:03,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:03,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:03,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 08:45:03,413 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:03,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:03,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1652433954, now seen corresponding path program 1 times [2024-11-16 08:45:03,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:03,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456526914] [2024-11-16 08:45:03,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:03,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:03,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:03,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456526914] [2024-11-16 08:45:03,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456526914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:03,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:03,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:45:03,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080121100] [2024-11-16 08:45:03,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:03,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:45:03,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:03,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:45:03,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:03,936 INFO L87 Difference]: Start difference. First operand 5499 states and 8036 transitions. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:04,394 INFO L93 Difference]: Finished difference Result 12077 states and 17730 transitions. [2024-11-16 08:45:04,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:45:04,395 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-16 08:45:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:04,402 INFO L225 Difference]: With dead ends: 12077 [2024-11-16 08:45:04,402 INFO L226 Difference]: Without dead ends: 10810 [2024-11-16 08:45:04,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:45:04,404 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 1043 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:04,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 2513 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:04,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2024-11-16 08:45:04,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 5481. [2024-11-16 08:45:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5481 states, 5480 states have (on average 1.4622262773722627) internal successors, (8013), 5480 states have internal predecessors, (8013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5481 states to 5481 states and 8013 transitions. [2024-11-16 08:45:04,468 INFO L78 Accepts]: Start accepts. Automaton has 5481 states and 8013 transitions. Word has length 127 [2024-11-16 08:45:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:04,468 INFO L471 AbstractCegarLoop]: Abstraction has 5481 states and 8013 transitions. [2024-11-16 08:45:04,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5481 states and 8013 transitions. [2024-11-16 08:45:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 08:45:04,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:04,469 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] [2024-11-16 08:45:04,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 08:45:04,469 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:04,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash 966930319, now seen corresponding path program 1 times [2024-11-16 08:45:04,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:04,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269334461] [2024-11-16 08:45:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:04,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:04,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:04,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269334461] [2024-11-16 08:45:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269334461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:04,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:04,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:45:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008044985] [2024-11-16 08:45:04,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:04,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:45:04,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:04,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:45:04,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:45:04,525 INFO L87 Difference]: Start difference. First operand 5481 states and 8013 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:04,563 INFO L93 Difference]: Finished difference Result 15589 states and 22851 transitions. [2024-11-16 08:45:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:45:04,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-16 08:45:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:04,572 INFO L225 Difference]: With dead ends: 15589 [2024-11-16 08:45:04,572 INFO L226 Difference]: Without dead ends: 10283 [2024-11-16 08:45:04,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:45:04,578 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 111 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:04,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 577 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:45:04,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2024-11-16 08:45:04,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10281. [2024-11-16 08:45:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10281 states, 10280 states have (on average 1.4487354085603112) internal successors, (14893), 10280 states have internal predecessors, (14893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10281 states to 10281 states and 14893 transitions. [2024-11-16 08:45:04,673 INFO L78 Accepts]: Start accepts. Automaton has 10281 states and 14893 transitions. Word has length 128 [2024-11-16 08:45:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:04,674 INFO L471 AbstractCegarLoop]: Abstraction has 10281 states and 14893 transitions. [2024-11-16 08:45:04,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 10281 states and 14893 transitions. [2024-11-16 08:45:04,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 08:45:04,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:04,675 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] [2024-11-16 08:45:04,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 08:45:04,675 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:04,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:04,675 INFO L85 PathProgramCache]: Analyzing trace with hash 196725707, now seen corresponding path program 1 times [2024-11-16 08:45:04,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:04,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185543265] [2024-11-16 08:45:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:04,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:04,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:04,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185543265] [2024-11-16 08:45:04,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185543265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:04,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:04,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:45:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111750117] [2024-11-16 08:45:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:04,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:45:04,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:04,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:45:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:45:04,801 INFO L87 Difference]: Start difference. First operand 10281 states and 14893 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:04,855 INFO L93 Difference]: Finished difference Result 24685 states and 35875 transitions. [2024-11-16 08:45:04,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:45:04,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-16 08:45:04,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:04,870 INFO L225 Difference]: With dead ends: 24685 [2024-11-16 08:45:04,870 INFO L226 Difference]: Without dead ends: 14579 [2024-11-16 08:45:04,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:45:04,880 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 117 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:04,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 690 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:45:04,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14579 states. [2024-11-16 08:45:04,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14579 to 14577. [2024-11-16 08:45:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14577 states, 14576 states have (on average 1.446281558726674) internal successors, (21081), 14576 states have internal predecessors, (21081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14577 states to 14577 states and 21081 transitions. [2024-11-16 08:45:05,018 INFO L78 Accepts]: Start accepts. Automaton has 14577 states and 21081 transitions. Word has length 129 [2024-11-16 08:45:05,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:05,018 INFO L471 AbstractCegarLoop]: Abstraction has 14577 states and 21081 transitions. [2024-11-16 08:45:05,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand 14577 states and 21081 transitions. [2024-11-16 08:45:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 08:45:05,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:05,019 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] [2024-11-16 08:45:05,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 08:45:05,019 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:05,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:05,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1838532365, now seen corresponding path program 1 times [2024-11-16 08:45:05,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:05,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203038548] [2024-11-16 08:45:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:05,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:05,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:05,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203038548] [2024-11-16 08:45:05,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203038548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:05,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:05,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:45:05,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839774451] [2024-11-16 08:45:05,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:05,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:45:05,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:05,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:45:05,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:45:05,198 INFO L87 Difference]: Start difference. First operand 14577 states and 21081 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:05,240 INFO L93 Difference]: Finished difference Result 14707 states and 21242 transitions. [2024-11-16 08:45:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:45:05,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-16 08:45:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:05,255 INFO L225 Difference]: With dead ends: 14707 [2024-11-16 08:45:05,256 INFO L226 Difference]: Without dead ends: 14705 [2024-11-16 08:45:05,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:45:05,261 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:05,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 969 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:45:05,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14705 states. [2024-11-16 08:45:05,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14705 to 14705. [2024-11-16 08:45:05,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14705 states, 14704 states have (on average 1.437772034820457) internal successors, (21141), 14704 states have internal predecessors, (21141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14705 states to 14705 states and 21141 transitions. [2024-11-16 08:45:05,423 INFO L78 Accepts]: Start accepts. Automaton has 14705 states and 21141 transitions. Word has length 129 [2024-11-16 08:45:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:05,424 INFO L471 AbstractCegarLoop]: Abstraction has 14705 states and 21141 transitions. [2024-11-16 08:45:05,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,424 INFO L276 IsEmpty]: Start isEmpty. Operand 14705 states and 21141 transitions. [2024-11-16 08:45:05,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:45:05,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:05,427 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:05,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 08:45:05,427 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:05,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:05,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1475175523, now seen corresponding path program 1 times [2024-11-16 08:45:05,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:05,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287082372] [2024-11-16 08:45:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:05,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:05,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:05,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287082372] [2024-11-16 08:45:05,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287082372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:05,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:05,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:05,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83485109] [2024-11-16 08:45:05,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:05,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:05,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:05,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:05,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:05,550 INFO L87 Difference]: Start difference. First operand 14705 states and 21141 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:05,784 INFO L93 Difference]: Finished difference Result 27233 states and 39371 transitions. [2024-11-16 08:45:05,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:45:05,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:45:05,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:05,801 INFO L225 Difference]: With dead ends: 27233 [2024-11-16 08:45:05,802 INFO L226 Difference]: Without dead ends: 16999 [2024-11-16 08:45:05,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:45:05,811 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1095 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:05,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 437 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:05,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16999 states. [2024-11-16 08:45:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16999 to 14671. [2024-11-16 08:45:05,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14671 states, 14670 states have (on average 1.4341513292433539) internal successors, (21039), 14670 states have internal predecessors, (21039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14671 states to 14671 states and 21039 transitions. [2024-11-16 08:45:05,946 INFO L78 Accepts]: Start accepts. Automaton has 14671 states and 21039 transitions. Word has length 166 [2024-11-16 08:45:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:05,946 INFO L471 AbstractCegarLoop]: Abstraction has 14671 states and 21039 transitions. [2024-11-16 08:45:05,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand 14671 states and 21039 transitions. [2024-11-16 08:45:05,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:45:05,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:05,949 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:05,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 08:45:05,949 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:05,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:05,950 INFO L85 PathProgramCache]: Analyzing trace with hash -634039203, now seen corresponding path program 1 times [2024-11-16 08:45:05,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:05,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624810103] [2024-11-16 08:45:05,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:05,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:06,066 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:06,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:06,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624810103] [2024-11-16 08:45:06,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624810103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:06,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:06,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:06,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741309089] [2024-11-16 08:45:06,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:06,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:06,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:06,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:06,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:06,068 INFO L87 Difference]: Start difference. First operand 14671 states and 21039 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:06,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:06,351 INFO L93 Difference]: Finished difference Result 49847 states and 72158 transitions. [2024-11-16 08:45:06,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:06,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:45:06,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:06,389 INFO L225 Difference]: With dead ends: 49847 [2024-11-16 08:45:06,390 INFO L226 Difference]: Without dead ends: 35351 [2024-11-16 08:45:06,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:06,410 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1527 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:06,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 497 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:06,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35351 states. [2024-11-16 08:45:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35351 to 21853. [2024-11-16 08:45:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21853 states, 21852 states have (on average 1.4303496247483067) internal successors, (31256), 21852 states have internal predecessors, (31256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21853 states to 21853 states and 31256 transitions. [2024-11-16 08:45:06,720 INFO L78 Accepts]: Start accepts. Automaton has 21853 states and 31256 transitions. Word has length 166 [2024-11-16 08:45:06,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:06,720 INFO L471 AbstractCegarLoop]: Abstraction has 21853 states and 31256 transitions. [2024-11-16 08:45:06,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 21853 states and 31256 transitions. [2024-11-16 08:45:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:45:06,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:06,723 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:06,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 08:45:06,723 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:06,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash -435000035, now seen corresponding path program 1 times [2024-11-16 08:45:06,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:06,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791059985] [2024-11-16 08:45:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:06,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:06,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:06,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791059985] [2024-11-16 08:45:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791059985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427544509] [2024-11-16 08:45:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:06,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:06,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:06,839 INFO L87 Difference]: Start difference. First operand 21853 states and 31256 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:07,224 INFO L93 Difference]: Finished difference Result 89937 states and 129974 transitions. [2024-11-16 08:45:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:07,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:45:07,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:07,304 INFO L225 Difference]: With dead ends: 89937 [2024-11-16 08:45:07,304 INFO L226 Difference]: Without dead ends: 68303 [2024-11-16 08:45:07,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:07,333 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1442 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:07,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 495 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:07,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68303 states. [2024-11-16 08:45:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68303 to 46125. [2024-11-16 08:45:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46125 states, 46124 states have (on average 1.4301014656144306) internal successors, (65962), 46124 states have internal predecessors, (65962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46125 states to 46125 states and 65962 transitions. [2024-11-16 08:45:07,991 INFO L78 Accepts]: Start accepts. Automaton has 46125 states and 65962 transitions. Word has length 166 [2024-11-16 08:45:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:07,991 INFO L471 AbstractCegarLoop]: Abstraction has 46125 states and 65962 transitions. [2024-11-16 08:45:07,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:07,991 INFO L276 IsEmpty]: Start isEmpty. Operand 46125 states and 65962 transitions. [2024-11-16 08:45:07,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:45:07,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:07,994 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:07,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-16 08:45:07,994 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:07,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:07,995 INFO L85 PathProgramCache]: Analyzing trace with hash -2015762979, now seen corresponding path program 1 times [2024-11-16 08:45:07,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:07,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140959516] [2024-11-16 08:45:07,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:07,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:08,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:08,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140959516] [2024-11-16 08:45:08,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140959516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:08,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:08,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:08,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4607384] [2024-11-16 08:45:08,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:08,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:08,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:08,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:08,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:08,122 INFO L87 Difference]: Start difference. First operand 46125 states and 65962 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:08,652 INFO L93 Difference]: Finished difference Result 177009 states and 254948 transitions. [2024-11-16 08:45:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:08,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:45:08,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:08,814 INFO L225 Difference]: With dead ends: 177009 [2024-11-16 08:45:08,814 INFO L226 Difference]: Without dead ends: 131103 [2024-11-16 08:45:08,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:08,867 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1357 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:08,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 493 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131103 states. [2024-11-16 08:45:10,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131103 to 97309. [2024-11-16 08:45:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97309 states, 97308 states have (on average 1.4291733464874419) internal successors, (139070), 97308 states have internal predecessors, (139070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:10,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97309 states to 97309 states and 139070 transitions. [2024-11-16 08:45:10,787 INFO L78 Accepts]: Start accepts. Automaton has 97309 states and 139070 transitions. Word has length 166 [2024-11-16 08:45:10,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:10,787 INFO L471 AbstractCegarLoop]: Abstraction has 97309 states and 139070 transitions. [2024-11-16 08:45:10,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 97309 states and 139070 transitions. [2024-11-16 08:45:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:45:10,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:10,791 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:10,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-16 08:45:10,792 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:10,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:10,792 INFO L85 PathProgramCache]: Analyzing trace with hash -670922051, now seen corresponding path program 1 times [2024-11-16 08:45:10,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:10,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419948303] [2024-11-16 08:45:10,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:10,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419948303] [2024-11-16 08:45:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419948303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:11,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:11,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101796285] [2024-11-16 08:45:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:11,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:11,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:11,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:11,023 INFO L87 Difference]: Start difference. First operand 97309 states and 139070 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:12,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:12,170 INFO L93 Difference]: Finished difference Result 348513 states and 500144 transitions. [2024-11-16 08:45:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:12,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:45:12,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:12,472 INFO L225 Difference]: With dead ends: 348513 [2024-11-16 08:45:12,472 INFO L226 Difference]: Without dead ends: 251423 [2024-11-16 08:45:12,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:12,533 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1272 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:12,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 491 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251423 states. [2024-11-16 08:45:14,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251423 to 204957. [2024-11-16 08:45:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204957 states, 204956 states have (on average 1.428004059407873) internal successors, (292678), 204956 states have internal predecessors, (292678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204957 states to 204957 states and 292678 transitions. [2024-11-16 08:45:15,660 INFO L78 Accepts]: Start accepts. Automaton has 204957 states and 292678 transitions. Word has length 166 [2024-11-16 08:45:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:15,660 INFO L471 AbstractCegarLoop]: Abstraction has 204957 states and 292678 transitions. [2024-11-16 08:45:15,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 204957 states and 292678 transitions. [2024-11-16 08:45:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 08:45:15,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:15,666 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:15,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-16 08:45:15,666 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:15,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -100702347, now seen corresponding path program 1 times [2024-11-16 08:45:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:15,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128133591] [2024-11-16 08:45:15,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:15,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:15,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128133591] [2024-11-16 08:45:15,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128133591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:15,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:15,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:15,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000493766] [2024-11-16 08:45:15,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:15,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:15,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:15,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:15,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:15,822 INFO L87 Difference]: Start difference. First operand 204957 states and 292678 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:18,112 INFO L93 Difference]: Finished difference Result 686241 states and 981032 transitions. [2024-11-16 08:45:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-16 08:45:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:18,879 INFO L225 Difference]: With dead ends: 686241 [2024-11-16 08:45:18,879 INFO L226 Difference]: Without dead ends: 481503 [2024-11-16 08:45:19,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:19,003 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1187 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:19,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 489 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:19,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481503 states. [2024-11-16 08:45:24,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481503 to 430813. [2024-11-16 08:45:24,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430813 states, 430812 states have (on average 1.4267894116227031) internal successors, (614678), 430812 states have internal predecessors, (614678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430813 states to 430813 states and 614678 transitions. [2024-11-16 08:45:25,742 INFO L78 Accepts]: Start accepts. Automaton has 430813 states and 614678 transitions. Word has length 166 [2024-11-16 08:45:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:25,742 INFO L471 AbstractCegarLoop]: Abstraction has 430813 states and 614678 transitions. [2024-11-16 08:45:25,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 430813 states and 614678 transitions. [2024-11-16 08:45:25,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 08:45:25,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:25,747 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:25,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-16 08:45:25,748 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:25,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:25,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1742531526, now seen corresponding path program 1 times [2024-11-16 08:45:25,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:25,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144390986] [2024-11-16 08:45:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:25,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:26,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:26,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144390986] [2024-11-16 08:45:26,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144390986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:45:26,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431376151] [2024-11-16 08:45:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:26,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:45:26,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:45:26,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:45:26,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:45:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:26,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 08:45:26,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:45:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:27,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:45:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:27,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431376151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:45:27,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:45:27,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-16 08:45:27,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901464951] [2024-11-16 08:45:27,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:45:27,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 08:45:27,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:27,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 08:45:27,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:45:27,239 INFO L87 Difference]: Start difference. First operand 430813 states and 614678 transitions. Second operand has 11 states, 11 states have (on average 27.09090909090909) internal successors, (298), 10 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)