./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+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-var-start-time.6.2.ufo.BOUNDED-12.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 35eb4fe61244b47e62120cf84d8eaed931ae7a7b0a5140717764703691b11b75 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:37:26,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:37:26,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:37:26,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:37:26,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:37:26,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:37:26,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:37:26,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:37:26,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:37:26,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:37:26,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:37:26,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:37:26,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:37:26,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:37:26,829 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:37:26,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:37:26,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:37:26,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:37:26,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:37:26,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:37:26,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:37:26,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:37:26,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:37:26,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:37:26,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:37:26,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:37:26,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:37:26,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:37:26,831 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:37:26,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:37:26,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:37:26,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:37:26,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:37:26,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:37:26,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:37:26,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:37:26,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:37:26,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:37:26,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:37:26,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:37:26,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:37:26,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:37:26,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35eb4fe61244b47e62120cf84d8eaed931ae7a7b0a5140717764703691b11b75 [2024-11-16 08:37:27,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:37:27,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:37:27,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:37:27,075 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:37:27,076 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:37:27,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-16 08:37:28,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:37:28,557 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:37:28,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-16 08:37:28,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c78860e4/8a2d1f61dcb94689b16ac52b5af411f1/FLAGe0e351f4c [2024-11-16 08:37:28,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c78860e4/8a2d1f61dcb94689b16ac52b5af411f1 [2024-11-16 08:37:28,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:37:28,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:37:28,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:37:28,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:37:28,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:37:28,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:28" (1/1) ... [2024-11-16 08:37:28,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462649db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:28, skipping insertion in model container [2024-11-16 08:37:28,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:28" (1/1) ... [2024-11-16 08:37:28,630 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:37:28,841 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2024-11-16 08:37:28,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:37:28,915 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:37:29,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2024-11-16 08:37:29,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:37:29,126 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:37:29,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29 WrapperNode [2024-11-16 08:37:29,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:37:29,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:37:29,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:37:29,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:37:29,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,223 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1021 [2024-11-16 08:37:29,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:37:29,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:37:29,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:37:29,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:37:29,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,277 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:37:29,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,292 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:37:29,306 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:37:29,307 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:37:29,307 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:37:29,307 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (1/1) ... [2024-11-16 08:37:29,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:37:29,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:37:29,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:37:29,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:37:29,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:37:29,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:37:29,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:37:29,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:37:29,503 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:37:29,505 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:37:30,122 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:30,123 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L831: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:30,123 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L272: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:30,123 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L538: 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 08:37:30,123 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1464: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:30,123 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1332: havoc main_~node6____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:30,124 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1003: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:30,124 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L773: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:30,124 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: havoc main_~node3__m3~2#1; [2024-11-16 08:37:30,124 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L611: havoc main_~node5__m5~2#1; [2024-11-16 08:37:30,124 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L314: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:30,124 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:30,124 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: 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_~node6____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:30,125 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L251: 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 08:37:30,125 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L945: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:30,125 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1508: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:30,125 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1376: havoc main_~node5____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:30,125 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L917: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:30,126 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L687: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:30,126 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L557: havoc main_~node2__m2~2#1; [2024-11-16 08:37:30,126 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:30,126 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1119: havoc main_~node6____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:30,127 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:30,127 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L593: havoc main_~node4__m4~2#1; [2024-11-16 08:37:30,127 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1420: havoc main_~node4____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:30,127 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L859: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:30,127 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1091: havoc main_~node6____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:30,194 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-16 08:37:30,198 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:37:30,220 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:37:30,220 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:37:30,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:37:30 BoogieIcfgContainer [2024-11-16 08:37:30,221 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:37:30,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:37:30,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:37:30,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:37:30,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:37:28" (1/3) ... [2024-11-16 08:37:30,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396b1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:37:30, skipping insertion in model container [2024-11-16 08:37:30,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:29" (2/3) ... [2024-11-16 08:37:30,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396b1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:37:30, skipping insertion in model container [2024-11-16 08:37:30,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:37:30" (3/3) ... [2024-11-16 08:37:30,237 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-16 08:37:30,255 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:37:30,255 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:37:30,344 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:37:30,353 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;@2b917124, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:37:30,353 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:37:30,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 263 states, 261 states have (on average 1.6896551724137931) internal successors, (441), 262 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:30,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:37:30,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:30,370 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] [2024-11-16 08:37:30,370 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:30,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:30,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1113027468, now seen corresponding path program 1 times [2024-11-16 08:37:30,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:30,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223137164] [2024-11-16 08:37:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:31,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:31,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223137164] [2024-11-16 08:37:31,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223137164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:31,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:31,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:37:31,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454580788] [2024-11-16 08:37:31,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:31,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:37:31,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:31,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:37:31,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:37:31,035 INFO L87 Difference]: Start difference. First operand has 263 states, 261 states have (on average 1.6896551724137931) internal successors, (441), 262 states have internal predecessors, (441), 0 states have call successors, (0), 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 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:31,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:31,324 INFO L93 Difference]: Finished difference Result 1197 states and 1894 transitions. [2024-11-16 08:37:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:37:31,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-16 08:37:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:31,340 INFO L225 Difference]: With dead ends: 1197 [2024-11-16 08:37:31,340 INFO L226 Difference]: Without dead ends: 1053 [2024-11-16 08:37:31,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:37:31,345 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 3325 mSDsluCounter, 4444 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:31,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 4891 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:37:31,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-16 08:37:31,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 406. [2024-11-16 08:37:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.4691358024691359) internal successors, (595), 405 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 595 transitions. [2024-11-16 08:37:31,391 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 595 transitions. Word has length 96 [2024-11-16 08:37:31,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:31,392 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 595 transitions. [2024-11-16 08:37:31,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 595 transitions. [2024-11-16 08:37:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 08:37:31,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:31,396 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] [2024-11-16 08:37:31,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:37:31,397 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:31,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash -141756940, now seen corresponding path program 1 times [2024-11-16 08:37:31,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:31,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977007513] [2024-11-16 08:37:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:31,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:31,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:31,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977007513] [2024-11-16 08:37:31,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977007513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:31,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:31,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:37:31,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291584572] [2024-11-16 08:37:31,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:31,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:37:31,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:31,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:37:31,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:37:31,802 INFO L87 Difference]: Start difference. First operand 406 states and 595 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:32,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:32,187 INFO L93 Difference]: Finished difference Result 2027 states and 3073 transitions. [2024-11-16 08:37:32,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:37:32,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-16 08:37:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:32,194 INFO L225 Difference]: With dead ends: 2027 [2024-11-16 08:37:32,194 INFO L226 Difference]: Without dead ends: 1717 [2024-11-16 08:37:32,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:37:32,196 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 2542 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2542 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:32,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2542 Valid, 1530 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:37:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2024-11-16 08:37:32,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1707. [2024-11-16 08:37:32,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.514654161781946) internal successors, (2584), 1706 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2584 transitions. [2024-11-16 08:37:32,261 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2584 transitions. Word has length 98 [2024-11-16 08:37:32,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:32,262 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 2584 transitions. [2024-11-16 08:37:32,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:32,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2584 transitions. [2024-11-16 08:37:32,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:37:32,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:32,267 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] [2024-11-16 08:37:32,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:37:32,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:32,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:32,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1820205000, now seen corresponding path program 1 times [2024-11-16 08:37:32,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:32,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842208025] [2024-11-16 08:37:32,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:32,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:32,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:32,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842208025] [2024-11-16 08:37:32,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842208025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:32,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:32,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:32,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735475164] [2024-11-16 08:37:32,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:32,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:32,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:32,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:32,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:32,402 INFO L87 Difference]: Start difference. First operand 1707 states and 2584 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:32,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:32,621 INFO L93 Difference]: Finished difference Result 4365 states and 6692 transitions. [2024-11-16 08:37:32,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:32,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:37:32,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:32,629 INFO L225 Difference]: With dead ends: 4365 [2024-11-16 08:37:32,630 INFO L226 Difference]: Without dead ends: 2853 [2024-11-16 08:37:32,632 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 08:37:32,633 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 1341 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:32,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 378 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:37:32,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2024-11-16 08:37:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2851. [2024-11-16 08:37:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.5256140350877192) internal successors, (4348), 2850 states have internal predecessors, (4348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 4348 transitions. [2024-11-16 08:37:32,703 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 4348 transitions. Word has length 99 [2024-11-16 08:37:32,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:32,704 INFO L471 AbstractCegarLoop]: Abstraction has 2851 states and 4348 transitions. [2024-11-16 08:37:32,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 4348 transitions. [2024-11-16 08:37:32,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:37:32,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:32,707 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] [2024-11-16 08:37:32,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:37:32,708 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:32,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:32,709 INFO L85 PathProgramCache]: Analyzing trace with hash 143406708, now seen corresponding path program 1 times [2024-11-16 08:37:32,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:32,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190286897] [2024-11-16 08:37:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:32,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:32,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:32,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190286897] [2024-11-16 08:37:32,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190286897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:32,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:32,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:32,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641632178] [2024-11-16 08:37:32,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:32,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:32,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:32,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:32,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:32,824 INFO L87 Difference]: Start difference. First operand 2851 states and 4348 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:33,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:33,050 INFO L93 Difference]: Finished difference Result 7848 states and 12057 transitions. [2024-11-16 08:37:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:37:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:33,064 INFO L225 Difference]: With dead ends: 7848 [2024-11-16 08:37:33,064 INFO L226 Difference]: Without dead ends: 5151 [2024-11-16 08:37:33,069 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 08:37:33,070 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 1343 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:33,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 369 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:37:33,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5151 states. [2024-11-16 08:37:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5151 to 5149. [2024-11-16 08:37:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 1.5299145299145298) internal successors, (7876), 5148 states have internal predecessors, (7876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:33,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 7876 transitions. [2024-11-16 08:37:33,212 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 7876 transitions. Word has length 99 [2024-11-16 08:37:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:33,213 INFO L471 AbstractCegarLoop]: Abstraction has 5149 states and 7876 transitions. [2024-11-16 08:37:33,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 7876 transitions. [2024-11-16 08:37:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:37:33,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:33,216 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] [2024-11-16 08:37:33,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:37:33,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:33,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:33,217 INFO L85 PathProgramCache]: Analyzing trace with hash 756487968, now seen corresponding path program 1 times [2024-11-16 08:37:33,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:33,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000355041] [2024-11-16 08:37:33,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:33,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:33,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:33,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000355041] [2024-11-16 08:37:33,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000355041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:33,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:33,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:33,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326619291] [2024-11-16 08:37:33,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:33,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:33,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:33,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:33,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:33,357 INFO L87 Difference]: Start difference. First operand 5149 states and 7876 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:33,618 INFO L93 Difference]: Finished difference Result 14829 states and 22778 transitions. [2024-11-16 08:37:33,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:33,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:37:33,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:33,644 INFO L225 Difference]: With dead ends: 14829 [2024-11-16 08:37:33,644 INFO L226 Difference]: Without dead ends: 9797 [2024-11-16 08:37:33,652 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 08:37:33,654 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 1371 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:33,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 368 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:37:33,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2024-11-16 08:37:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 9795. [2024-11-16 08:37:33,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9795 states, 9794 states have (on average 1.5296099652848683) internal successors, (14981), 9794 states have internal predecessors, (14981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 14981 transitions. [2024-11-16 08:37:33,804 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 14981 transitions. Word has length 99 [2024-11-16 08:37:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:33,805 INFO L471 AbstractCegarLoop]: Abstraction has 9795 states and 14981 transitions. [2024-11-16 08:37:33,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 14981 transitions. [2024-11-16 08:37:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:37:33,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:33,810 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] [2024-11-16 08:37:33,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:37:33,810 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:33,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:33,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1521074636, now seen corresponding path program 1 times [2024-11-16 08:37:33,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:33,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147502097] [2024-11-16 08:37:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:33,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:33,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:33,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147502097] [2024-11-16 08:37:33,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147502097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:33,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:33,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:33,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018417747] [2024-11-16 08:37:33,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:33,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:33,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:33,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:33,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:33,989 INFO L87 Difference]: Start difference. First operand 9795 states and 14981 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:34,289 INFO L93 Difference]: Finished difference Result 28843 states and 44215 transitions. [2024-11-16 08:37:34,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:34,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:37:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:34,338 INFO L225 Difference]: With dead ends: 28843 [2024-11-16 08:37:34,338 INFO L226 Difference]: Without dead ends: 19135 [2024-11-16 08:37:34,353 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 08:37:34,355 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 1399 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:34,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 367 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:37:34,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19135 states. [2024-11-16 08:37:34,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19135 to 19133. [2024-11-16 08:37:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19133 states, 19132 states have (on average 1.525768346226218) internal successors, (29191), 19132 states have internal predecessors, (29191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19133 states to 19133 states and 29191 transitions. [2024-11-16 08:37:34,662 INFO L78 Accepts]: Start accepts. Automaton has 19133 states and 29191 transitions. Word has length 99 [2024-11-16 08:37:34,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:34,662 INFO L471 AbstractCegarLoop]: Abstraction has 19133 states and 29191 transitions. [2024-11-16 08:37:34,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand 19133 states and 29191 transitions. [2024-11-16 08:37:34,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:37:34,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:34,666 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] [2024-11-16 08:37:34,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:37:34,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:34,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:34,667 INFO L85 PathProgramCache]: Analyzing trace with hash -733006216, now seen corresponding path program 1 times [2024-11-16 08:37:34,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:34,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399076505] [2024-11-16 08:37:34,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:34,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:34,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:34,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399076505] [2024-11-16 08:37:34,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399076505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:34,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:34,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:34,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311007245] [2024-11-16 08:37:34,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:34,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:34,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:34,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:34,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:34,777 INFO L87 Difference]: Start difference. First operand 19133 states and 29191 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:35,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:35,344 INFO L93 Difference]: Finished difference Result 56912 states and 86938 transitions. [2024-11-16 08:37:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:35,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 08:37:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:35,403 INFO L225 Difference]: With dead ends: 56912 [2024-11-16 08:37:35,403 INFO L226 Difference]: Without dead ends: 37843 [2024-11-16 08:37:35,422 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 08:37:35,423 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 1427 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:35,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 366 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:37:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37843 states. [2024-11-16 08:37:35,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37843 to 37841. [2024-11-16 08:37:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37841 states, 37840 states have (on average 1.5194503171247358) internal successors, (57496), 37840 states have internal predecessors, (57496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:36,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37841 states to 37841 states and 57496 transitions. [2024-11-16 08:37:36,054 INFO L78 Accepts]: Start accepts. Automaton has 37841 states and 57496 transitions. Word has length 99 [2024-11-16 08:37:36,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:36,054 INFO L471 AbstractCegarLoop]: Abstraction has 37841 states and 57496 transitions. [2024-11-16 08:37:36,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:36,055 INFO L276 IsEmpty]: Start isEmpty. Operand 37841 states and 57496 transitions. [2024-11-16 08:37:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:37:36,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:36,061 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] [2024-11-16 08:37:36,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:37:36,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:36,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:36,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1058674053, now seen corresponding path program 1 times [2024-11-16 08:37:36,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:36,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812379378] [2024-11-16 08:37:36,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:36,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:36,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:36,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:36,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812379378] [2024-11-16 08:37:36,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812379378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:36,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:36,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:36,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764528910] [2024-11-16 08:37:36,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:36,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:36,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:36,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:36,315 INFO L87 Difference]: Start difference. First operand 37841 states and 57496 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:36,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:36,969 INFO L93 Difference]: Finished difference Result 107685 states and 163676 transitions. [2024-11-16 08:37:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:36,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 08:37:36,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:37,055 INFO L225 Difference]: With dead ends: 107685 [2024-11-16 08:37:37,055 INFO L226 Difference]: Without dead ends: 69924 [2024-11-16 08:37:37,176 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 08:37:37,177 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 1462 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:37,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 370 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:37:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69924 states. [2024-11-16 08:37:38,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69924 to 69922. [2024-11-16 08:37:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69922 states, 69921 states have (on average 1.5143376095879635) internal successors, (105884), 69921 states have internal predecessors, (105884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:38,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69922 states to 69922 states and 105884 transitions. [2024-11-16 08:37:38,274 INFO L78 Accepts]: Start accepts. Automaton has 69922 states and 105884 transitions. Word has length 100 [2024-11-16 08:37:38,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:38,274 INFO L471 AbstractCegarLoop]: Abstraction has 69922 states and 105884 transitions. [2024-11-16 08:37:38,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:38,278 INFO L276 IsEmpty]: Start isEmpty. Operand 69922 states and 105884 transitions. [2024-11-16 08:37:38,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:37:38,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:38,290 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] [2024-11-16 08:37:38,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:37:38,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:38,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:38,291 INFO L85 PathProgramCache]: Analyzing trace with hash -890590666, now seen corresponding path program 1 times [2024-11-16 08:37:38,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:38,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493990524] [2024-11-16 08:37:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:38,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:38,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:38,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493990524] [2024-11-16 08:37:38,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493990524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:38,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:38,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:37:38,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794636865] [2024-11-16 08:37:38,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:38,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:37:38,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:38,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:37:38,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:38,977 INFO L87 Difference]: Start difference. First operand 69922 states and 105884 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:39,336 INFO L93 Difference]: Finished difference Result 72036 states and 108701 transitions. [2024-11-16 08:37:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:37:39,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 08:37:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:39,415 INFO L225 Difference]: With dead ends: 72036 [2024-11-16 08:37:39,415 INFO L226 Difference]: Without dead ends: 72034 [2024-11-16 08:37:39,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:37:39,429 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 0 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:39,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1398 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72034 states. [2024-11-16 08:37:40,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72034 to 72034. [2024-11-16 08:37:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72034 states, 72033 states have (on average 1.4992572848555523) internal successors, (107996), 72033 states have internal predecessors, (107996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72034 states to 72034 states and 107996 transitions. [2024-11-16 08:37:40,300 INFO L78 Accepts]: Start accepts. Automaton has 72034 states and 107996 transitions. Word has length 100 [2024-11-16 08:37:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:40,300 INFO L471 AbstractCegarLoop]: Abstraction has 72034 states and 107996 transitions. [2024-11-16 08:37:40,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 72034 states and 107996 transitions. [2024-11-16 08:37:40,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 08:37:40,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:40,316 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] [2024-11-16 08:37:40,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:37:40,316 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:40,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:40,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1690705059, now seen corresponding path program 1 times [2024-11-16 08:37:40,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331951410] [2024-11-16 08:37:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:40,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:40,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:40,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331951410] [2024-11-16 08:37:40,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331951410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:40,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:40,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:37:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094874039] [2024-11-16 08:37:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:40,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:37:40,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:40,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:37:40,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:37:40,662 INFO L87 Difference]: Start difference. First operand 72034 states and 107996 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:41,760 INFO L93 Difference]: Finished difference Result 88095 states and 131263 transitions. [2024-11-16 08:37:41,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:37:41,761 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-16 08:37:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:41,852 INFO L225 Difference]: With dead ends: 88095 [2024-11-16 08:37:41,853 INFO L226 Difference]: Without dead ends: 80516 [2024-11-16 08:37:41,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:37:41,879 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1899 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:41,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 1158 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:37:41,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80516 states. [2024-11-16 08:37:42,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80516 to 72034. [2024-11-16 08:37:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72034 states, 72033 states have (on average 1.4992434023294878) internal successors, (107995), 72033 states have internal predecessors, (107995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:42,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72034 states to 72034 states and 107995 transitions. [2024-11-16 08:37:42,702 INFO L78 Accepts]: Start accepts. Automaton has 72034 states and 107995 transitions. Word has length 101 [2024-11-16 08:37:42,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:42,702 INFO L471 AbstractCegarLoop]: Abstraction has 72034 states and 107995 transitions. [2024-11-16 08:37:42,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 72034 states and 107995 transitions. [2024-11-16 08:37:42,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 08:37:42,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:42,712 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] [2024-11-16 08:37:42,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:37:42,712 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:42,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:42,713 INFO L85 PathProgramCache]: Analyzing trace with hash -214806819, now seen corresponding path program 1 times [2024-11-16 08:37:42,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:42,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019901238] [2024-11-16 08:37:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:42,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:42,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:42,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019901238] [2024-11-16 08:37:42,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019901238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:42,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:42,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403039073] [2024-11-16 08:37:42,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:42,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:37:42,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:42,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:37:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:37:42,855 INFO L87 Difference]: Start difference. First operand 72034 states and 107995 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:43,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:43,703 INFO L93 Difference]: Finished difference Result 203366 states and 304733 transitions. [2024-11-16 08:37:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:37:43,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-16 08:37:43,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:43,883 INFO L225 Difference]: With dead ends: 203366 [2024-11-16 08:37:43,883 INFO L226 Difference]: Without dead ends: 133284 [2024-11-16 08:37:43,946 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 08:37:43,947 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 289 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:43,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 758 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133284 states. [2024-11-16 08:37:45,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133284 to 133282. [2024-11-16 08:37:45,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133282 states, 133281 states have (on average 1.4921481681560012) internal successors, (198875), 133281 states have internal predecessors, (198875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133282 states to 133282 states and 198875 transitions. [2024-11-16 08:37:46,326 INFO L78 Accepts]: Start accepts. Automaton has 133282 states and 198875 transitions. Word has length 101 [2024-11-16 08:37:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:46,326 INFO L471 AbstractCegarLoop]: Abstraction has 133282 states and 198875 transitions. [2024-11-16 08:37:46,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 133282 states and 198875 transitions. [2024-11-16 08:37:46,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:37:46,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:46,344 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] [2024-11-16 08:37:46,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:37:46,345 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:46,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:46,345 INFO L85 PathProgramCache]: Analyzing trace with hash 2089912687, now seen corresponding path program 1 times [2024-11-16 08:37:46,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:46,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097653016] [2024-11-16 08:37:46,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:46,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:46,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:46,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097653016] [2024-11-16 08:37:46,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097653016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:46,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:46,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:46,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20035514] [2024-11-16 08:37:46,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:46,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:46,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:46,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:46,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:46,396 INFO L87 Difference]: Start difference. First operand 133282 states and 198875 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:47,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:47,890 INFO L93 Difference]: Finished difference Result 310628 states and 463578 transitions. [2024-11-16 08:37:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:47,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:37:47,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:48,110 INFO L225 Difference]: With dead ends: 310628 [2024-11-16 08:37:48,110 INFO L226 Difference]: Without dead ends: 188776 [2024-11-16 08:37:48,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:48,149 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 257 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:48,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 696 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188776 states. [2024-11-16 08:37:49,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188776 to 132383. [2024-11-16 08:37:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132383 states, 132382 states have (on average 1.4833436569926426) internal successors, (196368), 132382 states have internal predecessors, (196368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:50,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132383 states to 132383 states and 196368 transitions. [2024-11-16 08:37:50,429 INFO L78 Accepts]: Start accepts. Automaton has 132383 states and 196368 transitions. Word has length 102 [2024-11-16 08:37:50,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:50,430 INFO L471 AbstractCegarLoop]: Abstraction has 132383 states and 196368 transitions. [2024-11-16 08:37:50,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:50,430 INFO L276 IsEmpty]: Start isEmpty. Operand 132383 states and 196368 transitions. [2024-11-16 08:37:50,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:37:50,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:50,445 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] [2024-11-16 08:37:50,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:37:50,445 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:50,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:50,445 INFO L85 PathProgramCache]: Analyzing trace with hash 122318877, now seen corresponding path program 1 times [2024-11-16 08:37:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:50,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613815206] [2024-11-16 08:37:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:50,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:50,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:50,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:50,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613815206] [2024-11-16 08:37:50,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613815206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:50,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:50,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:50,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102721737] [2024-11-16 08:37:50,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:50,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:50,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:50,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:50,521 INFO L87 Difference]: Start difference. First operand 132383 states and 196368 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:51,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:51,448 INFO L93 Difference]: Finished difference Result 292818 states and 433845 transitions. [2024-11-16 08:37:51,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:51,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:37:51,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:51,713 INFO L225 Difference]: With dead ends: 292818 [2024-11-16 08:37:51,713 INFO L226 Difference]: Without dead ends: 171958 [2024-11-16 08:37:51,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:51,839 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 249 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:51,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 681 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:51,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171958 states. [2024-11-16 08:37:53,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171958 to 171123. [2024-11-16 08:37:54,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171123 states, 171122 states have (on average 1.4674618108717756) internal successors, (251115), 171122 states have internal predecessors, (251115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:54,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171123 states to 171123 states and 251115 transitions. [2024-11-16 08:37:54,349 INFO L78 Accepts]: Start accepts. Automaton has 171123 states and 251115 transitions. Word has length 102 [2024-11-16 08:37:54,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:54,350 INFO L471 AbstractCegarLoop]: Abstraction has 171123 states and 251115 transitions. [2024-11-16 08:37:54,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 171123 states and 251115 transitions. [2024-11-16 08:37:54,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:37:54,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:54,362 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] [2024-11-16 08:37:54,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:37:54,366 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:54,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1727491247, now seen corresponding path program 1 times [2024-11-16 08:37:54,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:54,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334198339] [2024-11-16 08:37:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:54,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:54,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:54,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334198339] [2024-11-16 08:37:54,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334198339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:54,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:54,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601909757] [2024-11-16 08:37:54,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:54,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:54,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:54,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:54,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:54,428 INFO L87 Difference]: Start difference. First operand 171123 states and 251115 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:37:55,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:56,000 INFO L93 Difference]: Finished difference Result 358620 states and 525381 transitions. [2024-11-16 08:37:56,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:56,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:37:56,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:56,445 INFO L225 Difference]: With dead ends: 358620 [2024-11-16 08:37:56,445 INFO L226 Difference]: Without dead ends: 218430 [2024-11-16 08:37:56,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:56,589 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 237 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:56,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 679 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:56,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218430 states. [2024-11-16 08:37:59,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218430 to 217145. [2024-11-16 08:37:59,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217145 states, 217144 states have (on average 1.4494805290498471) internal successors, (314746), 217144 states have internal predecessors, (314746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:38:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217145 states to 217145 states and 314746 transitions. [2024-11-16 08:38:00,714 INFO L78 Accepts]: Start accepts. Automaton has 217145 states and 314746 transitions. Word has length 102 [2024-11-16 08:38:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:00,715 INFO L471 AbstractCegarLoop]: Abstraction has 217145 states and 314746 transitions. [2024-11-16 08:38:00,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:38:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 217145 states and 314746 transitions. [2024-11-16 08:38:00,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:38:00,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:00,750 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] [2024-11-16 08:38:00,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:38:00,750 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:00,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:00,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1124338013, now seen corresponding path program 1 times [2024-11-16 08:38:00,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:00,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161671152] [2024-11-16 08:38:00,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:00,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:00,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:38:00,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:00,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161671152] [2024-11-16 08:38:00,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161671152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:00,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:00,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:38:00,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977404153] [2024-11-16 08:38:00,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:00,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:38:00,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:00,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:38:00,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:00,922 INFO L87 Difference]: Start difference. First operand 217145 states and 314746 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:38:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:01,963 INFO L93 Difference]: Finished difference Result 416628 states and 602587 transitions. [2024-11-16 08:38:01,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:01,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:38:01,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:02,394 INFO L225 Difference]: With dead ends: 416628 [2024-11-16 08:38:02,395 INFO L226 Difference]: Without dead ends: 264442 [2024-11-16 08:38:03,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:03,327 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 225 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:03,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 677 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:38:03,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264442 states. [2024-11-16 08:38:06,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264442 to 262670. [2024-11-16 08:38:06,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262670 states, 262669 states have (on average 1.4292208064141563) internal successors, (375412), 262669 states have internal predecessors, (375412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:38:06,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262670 states to 262670 states and 375412 transitions. [2024-11-16 08:38:06,910 INFO L78 Accepts]: Start accepts. Automaton has 262670 states and 375412 transitions. Word has length 102 [2024-11-16 08:38:06,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:06,911 INFO L471 AbstractCegarLoop]: Abstraction has 262670 states and 375412 transitions. [2024-11-16 08:38:06,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:38:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 262670 states and 375412 transitions. [2024-11-16 08:38:06,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:38:06,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:06,932 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] [2024-11-16 08:38:06,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:38:06,932 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:06,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:06,933 INFO L85 PathProgramCache]: Analyzing trace with hash 889609071, now seen corresponding path program 1 times [2024-11-16 08:38:06,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:06,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818927820] [2024-11-16 08:38:06,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:06,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:07,059 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 08:38:07,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:07,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818927820] [2024-11-16 08:38:07,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818927820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:07,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:07,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:38:07,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122966614] [2024-11-16 08:38:07,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:07,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:38:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:38:07,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:38:07,062 INFO L87 Difference]: Start difference. First operand 262670 states and 375412 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:38:10,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:10,581 INFO L93 Difference]: Finished difference Result 758617 states and 1088496 transitions. [2024-11-16 08:38:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:38:10,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:38:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:11,684 INFO L225 Difference]: With dead ends: 758617 [2024-11-16 08:38:11,684 INFO L226 Difference]: Without dead ends: 685391 [2024-11-16 08:38:11,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:38:11,780 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 3423 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:11,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 2108 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:38:12,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685391 states.