./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.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 ccd47f3526eef69b5bf2f51fee8d66c64e4c81e1dda46c7d333fbe79bb4350dd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:54:23,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:54:23,890 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:54:23,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:54:23,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:54:23,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:54:23,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:54:23,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:54:23,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:54:23,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:54:23,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:54:23,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:54:23,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:54:23,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:54:23,925 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:54:23,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:54:23,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:54:23,926 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:54:23,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:54:23,926 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:54:23,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:54:23,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:54:23,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:54:23,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:54:23,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:54:23,930 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:54:23,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:54:23,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:54:23,930 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:54:23,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:54:23,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:54:23,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:54:23,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:54:23,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:54:23,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:54:23,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:54:23,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:54:23,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:54:23,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:54:23,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:54:23,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:54:23,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:54:23,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccd47f3526eef69b5bf2f51fee8d66c64e4c81e1dda46c7d333fbe79bb4350dd [2024-11-09 23:54:24,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:54:24,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:54:24,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:54:24,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:54:24,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:54:24,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-09 23:54:25,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:54:25,504 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:54:25,505 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-09 23:54:25,516 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed9afe279/384c83c88cc54531a5611429d2675b50/FLAGf9177683e [2024-11-09 23:54:25,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed9afe279/384c83c88cc54531a5611429d2675b50 [2024-11-09 23:54:25,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:54:25,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:54:25,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:54:25,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:54:25,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:54:25,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f41374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25, skipping insertion in model container [2024-11-09 23:54:25,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:54:25,775 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-11-09 23:54:25,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:54:25,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:54:25,864 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-11-09 23:54:25,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:54:25,920 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:54:25,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25 WrapperNode [2024-11-09 23:54:25,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:54:25,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:54:25,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:54:25,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:54:25,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,972 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 881 [2024-11-09 23:54:25,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:54:25,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:54:25,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:54:25,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:54:25,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,997 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:54:25,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:25,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:26,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:26,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:26,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:26,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:26,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:54:26,013 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:54:26,014 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:54:26,014 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:54:26,014 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (1/1) ... [2024-11-09 23:54:26,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:54:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:54:26,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:54:26,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:54:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:54:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:54:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:54:26,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:54:26,178 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:54:26,180 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:54:26,802 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L565: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-09 23:54:26,803 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: 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; [2024-11-09 23:54:26,803 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: 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; [2024-11-09 23:54:26,803 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L765: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:26,803 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1327: havoc main_~node1____CPAchecker_TMP_1~1#1; [2024-11-09 23:54:26,803 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1195: havoc main_~node4____CPAchecker_TMP_1~1#1; [2024-11-09 23:54:26,804 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L370: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-09 23:54:26,804 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L370: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-09 23:54:26,804 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L370: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-09 23:54:26,804 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L370: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L370: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L238: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L238: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L967: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L737: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L407: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L407: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L407: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L407: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L407: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L939: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L280: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L280: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1239: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-09 23:54:26,805 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L679: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L217: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L217: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L517: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L517: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L517: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L517: havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L651: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L290: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L852: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L457: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L457: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:54:26,806 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L457: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L259: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L259: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1283: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1151: havoc main_~node5____CPAchecker_TMP_1~1#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,807 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L196: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:26,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L824: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-09 23:54:26,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L593: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:26,846 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-11-09 23:54:26,846 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:54:26,864 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:54:26,865 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:54:26,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:54:26 BoogieIcfgContainer [2024-11-09 23:54:26,865 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:54:26,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:54:26,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:54:26,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:54:26,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:54:25" (1/3) ... [2024-11-09 23:54:26,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30070f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:54:26, skipping insertion in model container [2024-11-09 23:54:26,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:25" (2/3) ... [2024-11-09 23:54:26,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30070f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:54:26, skipping insertion in model container [2024-11-09 23:54:26,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:54:26" (3/3) ... [2024-11-09 23:54:26,874 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-09 23:54:26,889 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:54:26,889 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:54:26,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:54:26,954 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;@12b2bf15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:54:26,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:54:26,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6844444444444444) internal successors, (379), 226 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:26,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 23:54:26,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:26,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:26,969 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:26,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:26,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1057630974, now seen corresponding path program 1 times [2024-11-09 23:54:26,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:26,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550279664] [2024-11-09 23:54:26,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:26,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:27,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550279664] [2024-11-09 23:54:27,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550279664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:27,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:27,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:27,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447614347] [2024-11-09 23:54:27,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:27,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:27,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:27,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:27,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:27,549 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6844444444444444) internal successors, (379), 226 states have internal predecessors, (379), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:27,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:27,803 INFO L93 Difference]: Finished difference Result 925 states and 1461 transitions. [2024-11-09 23:54:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:27,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-09 23:54:27,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:27,826 INFO L225 Difference]: With dead ends: 925 [2024-11-09 23:54:27,826 INFO L226 Difference]: Without dead ends: 798 [2024-11-09 23:54:27,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:54:27,835 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 2472 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:27,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 3010 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:27,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-09 23:54:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 349. [2024-11-09 23:54:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.471264367816092) internal successors, (512), 348 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 512 transitions. [2024-11-09 23:54:27,895 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 512 transitions. Word has length 81 [2024-11-09 23:54:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:27,895 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 512 transitions. [2024-11-09 23:54:27,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:27,896 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 512 transitions. [2024-11-09 23:54:27,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 23:54:27,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:27,898 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:27,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:54:27,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:27,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:27,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1493124994, now seen corresponding path program 1 times [2024-11-09 23:54:27,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:27,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443147777] [2024-11-09 23:54:27,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:27,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:28,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:28,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443147777] [2024-11-09 23:54:28,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443147777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:28,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:28,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:28,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736466785] [2024-11-09 23:54:28,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:28,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:28,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:28,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:28,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:28,186 INFO L87 Difference]: Start difference. First operand 349 states and 512 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:28,343 INFO L93 Difference]: Finished difference Result 1513 states and 2287 transitions. [2024-11-09 23:54:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:28,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-09 23:54:28,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:28,348 INFO L225 Difference]: With dead ends: 1513 [2024-11-09 23:54:28,348 INFO L226 Difference]: Without dead ends: 1245 [2024-11-09 23:54:28,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:28,350 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 2242 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:28,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 1122 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:28,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-11-09 23:54:28,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1237. [2024-11-09 23:54:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1236 states have (on average 1.5088996763754046) internal successors, (1865), 1236 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1865 transitions. [2024-11-09 23:54:28,390 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1865 transitions. Word has length 83 [2024-11-09 23:54:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:28,391 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 1865 transitions. [2024-11-09 23:54:28,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1865 transitions. [2024-11-09 23:54:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:54:28,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:28,396 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] [2024-11-09 23:54:28,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:54:28,398 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:28,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1540608502, now seen corresponding path program 1 times [2024-11-09 23:54:28,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:28,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345347254] [2024-11-09 23:54:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:28,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:28,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:28,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345347254] [2024-11-09 23:54:28,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345347254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:28,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:28,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:54:28,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045120611] [2024-11-09 23:54:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:28,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:28,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:28,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:28,550 INFO L87 Difference]: Start difference. First operand 1237 states and 1865 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:28,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:28,747 INFO L93 Difference]: Finished difference Result 3170 states and 4844 transitions. [2024-11-09 23:54:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:54:28,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-09 23:54:28,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:28,756 INFO L225 Difference]: With dead ends: 3170 [2024-11-09 23:54:28,756 INFO L226 Difference]: Without dead ends: 2079 [2024-11-09 23:54:28,758 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 [2024-11-09 23:54:28,759 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1167 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:28,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 323 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2024-11-09 23:54:28,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2077. [2024-11-09 23:54:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 2076 states have (on average 1.5202312138728324) internal successors, (3156), 2076 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:28,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 3156 transitions. [2024-11-09 23:54:28,794 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 3156 transitions. Word has length 84 [2024-11-09 23:54:28,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:28,795 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 3156 transitions. [2024-11-09 23:54:28,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:28,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 3156 transitions. [2024-11-09 23:54:28,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:54:28,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:28,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:28,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:54:28,797 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:28,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:28,798 INFO L85 PathProgramCache]: Analyzing trace with hash -742094166, now seen corresponding path program 1 times [2024-11-09 23:54:28,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:28,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020749709] [2024-11-09 23:54:28,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:28,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:28,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:28,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020749709] [2024-11-09 23:54:28,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020749709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:28,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:28,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:54:28,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488496437] [2024-11-09 23:54:28,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:28,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:28,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:28,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:28,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:28,925 INFO L87 Difference]: Start difference. First operand 2077 states and 3156 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:29,134 INFO L93 Difference]: Finished difference Result 5732 states and 8777 transitions. [2024-11-09 23:54:29,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:54:29,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-09 23:54:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:29,145 INFO L225 Difference]: With dead ends: 5732 [2024-11-09 23:54:29,145 INFO L226 Difference]: Without dead ends: 3767 [2024-11-09 23:54:29,148 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 [2024-11-09 23:54:29,149 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1173 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:29,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 312 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:29,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3767 states. [2024-11-09 23:54:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3767 to 3765. [2024-11-09 23:54:29,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 3764 states have (on average 1.5241764080765143) internal successors, (5737), 3764 states have internal predecessors, (5737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 5737 transitions. [2024-11-09 23:54:29,207 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 5737 transitions. Word has length 84 [2024-11-09 23:54:29,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:29,208 INFO L471 AbstractCegarLoop]: Abstraction has 3765 states and 5737 transitions. [2024-11-09 23:54:29,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 5737 transitions. [2024-11-09 23:54:29,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:54:29,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:29,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:29,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:54:29,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:29,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash 928056703, now seen corresponding path program 1 times [2024-11-09 23:54:29,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:29,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984328241] [2024-11-09 23:54:29,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:29,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:29,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:29,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984328241] [2024-11-09 23:54:29,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984328241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:29,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:29,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:54:29,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770135577] [2024-11-09 23:54:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:29,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:29,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:29,319 INFO L87 Difference]: Start difference. First operand 3765 states and 5737 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:29,533 INFO L93 Difference]: Finished difference Result 10868 states and 16634 transitions. [2024-11-09 23:54:29,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:54:29,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-09 23:54:29,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:29,553 INFO L225 Difference]: With dead ends: 10868 [2024-11-09 23:54:29,553 INFO L226 Difference]: Without dead ends: 7185 [2024-11-09 23:54:29,559 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 [2024-11-09 23:54:29,588 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1197 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:29,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 313 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2024-11-09 23:54:29,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 7183. [2024-11-09 23:54:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7183 states, 7182 states have (on average 1.5231133389028126) internal successors, (10939), 7182 states have internal predecessors, (10939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7183 states to 7183 states and 10939 transitions. [2024-11-09 23:54:29,716 INFO L78 Accepts]: Start accepts. Automaton has 7183 states and 10939 transitions. Word has length 84 [2024-11-09 23:54:29,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:29,717 INFO L471 AbstractCegarLoop]: Abstraction has 7183 states and 10939 transitions. [2024-11-09 23:54:29,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7183 states and 10939 transitions. [2024-11-09 23:54:29,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:54:29,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:29,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:29,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:54:29,719 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:29,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1211494956, now seen corresponding path program 1 times [2024-11-09 23:54:29,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:29,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164726812] [2024-11-09 23:54:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:29,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:29,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164726812] [2024-11-09 23:54:29,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164726812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:29,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:29,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:54:29,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526809026] [2024-11-09 23:54:29,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:29,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:29,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:29,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:29,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:29,829 INFO L87 Difference]: Start difference. First operand 7183 states and 10939 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:30,090 INFO L93 Difference]: Finished difference Result 21183 states and 32339 transitions. [2024-11-09 23:54:30,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:54:30,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-09 23:54:30,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:30,121 INFO L225 Difference]: With dead ends: 21183 [2024-11-09 23:54:30,122 INFO L226 Difference]: Without dead ends: 14059 [2024-11-09 23:54:30,127 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 [2024-11-09 23:54:30,128 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1225 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:30,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 312 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:30,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14059 states. [2024-11-09 23:54:30,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14059 to 14057. [2024-11-09 23:54:30,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14057 states, 14056 states have (on average 1.5180705748434833) internal successors, (21338), 14056 states have internal predecessors, (21338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14057 states to 14057 states and 21338 transitions. [2024-11-09 23:54:30,307 INFO L78 Accepts]: Start accepts. Automaton has 14057 states and 21338 transitions. Word has length 84 [2024-11-09 23:54:30,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:30,307 INFO L471 AbstractCegarLoop]: Abstraction has 14057 states and 21338 transitions. [2024-11-09 23:54:30,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 14057 states and 21338 transitions. [2024-11-09 23:54:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 23:54:30,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:30,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:30,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:54:30,311 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:30,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:30,311 INFO L85 PathProgramCache]: Analyzing trace with hash -919805015, now seen corresponding path program 1 times [2024-11-09 23:54:30,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:30,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939998906] [2024-11-09 23:54:30,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:30,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:30,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:30,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939998906] [2024-11-09 23:54:30,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939998906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:30,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:30,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:54:30,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166519106] [2024-11-09 23:54:30,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:30,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:30,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:30,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:30,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:30,440 INFO L87 Difference]: Start difference. First operand 14057 states and 21338 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:30,679 INFO L93 Difference]: Finished difference Result 41831 states and 63570 transitions. [2024-11-09 23:54:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:54:30,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-09 23:54:30,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:30,777 INFO L225 Difference]: With dead ends: 41831 [2024-11-09 23:54:30,778 INFO L226 Difference]: Without dead ends: 27817 [2024-11-09 23:54:30,797 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 [2024-11-09 23:54:30,799 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1253 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:30,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 312 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:54:30,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27817 states. [2024-11-09 23:54:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27817 to 27815. [2024-11-09 23:54:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27815 states, 27814 states have (on average 1.5095994822751133) internal successors, (41988), 27814 states have internal predecessors, (41988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:31,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27815 states to 27815 states and 41988 transitions. [2024-11-09 23:54:31,177 INFO L78 Accepts]: Start accepts. Automaton has 27815 states and 41988 transitions. Word has length 84 [2024-11-09 23:54:31,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:31,177 INFO L471 AbstractCegarLoop]: Abstraction has 27815 states and 41988 transitions. [2024-11-09 23:54:31,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 27815 states and 41988 transitions. [2024-11-09 23:54:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 23:54:31,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:31,183 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] [2024-11-09 23:54:31,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:54:31,183 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:31,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:31,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1883040093, now seen corresponding path program 1 times [2024-11-09 23:54:31,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:31,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509912566] [2024-11-09 23:54:31,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:31,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:31,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509912566] [2024-11-09 23:54:31,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509912566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:31,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:31,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:54:31,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865825308] [2024-11-09 23:54:31,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:31,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:31,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:31,500 INFO L87 Difference]: Start difference. First operand 27815 states and 41988 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:31,573 INFO L93 Difference]: Finished difference Result 28777 states and 43269 transitions. [2024-11-09 23:54:31,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:54:31,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-09 23:54:31,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:31,618 INFO L225 Difference]: With dead ends: 28777 [2024-11-09 23:54:31,618 INFO L226 Difference]: Without dead ends: 28775 [2024-11-09 23:54:31,629 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 [2024-11-09 23:54:31,630 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 0 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1202 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 [2024-11-09 23:54:31,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1202 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:31,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28775 states. [2024-11-09 23:54:31,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28775 to 28775. [2024-11-09 23:54:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28775 states, 28774 states have (on average 1.4925974838395775) internal successors, (42948), 28774 states have internal predecessors, (42948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28775 states to 28775 states and 42948 transitions. [2024-11-09 23:54:32,058 INFO L78 Accepts]: Start accepts. Automaton has 28775 states and 42948 transitions. Word has length 85 [2024-11-09 23:54:32,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:32,059 INFO L471 AbstractCegarLoop]: Abstraction has 28775 states and 42948 transitions. [2024-11-09 23:54:32,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 28775 states and 42948 transitions. [2024-11-09 23:54:32,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 23:54:32,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:32,066 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] [2024-11-09 23:54:32,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:54:32,066 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:32,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1578869079, now seen corresponding path program 1 times [2024-11-09 23:54:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:32,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865354210] [2024-11-09 23:54:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:32,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865354210] [2024-11-09 23:54:32,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865354210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:32,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:32,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:54:32,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156953275] [2024-11-09 23:54:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:32,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:54:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:32,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:54:32,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:54:32,253 INFO L87 Difference]: Start difference. First operand 28775 states and 42948 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:32,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:32,490 INFO L93 Difference]: Finished difference Result 80539 states and 120166 transitions. [2024-11-09 23:54:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:54:32,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-09 23:54:32,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:32,573 INFO L225 Difference]: With dead ends: 80539 [2024-11-09 23:54:32,573 INFO L226 Difference]: Without dead ends: 52697 [2024-11-09 23:54:32,600 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 [2024-11-09 23:54:32,602 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 251 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 747 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 [2024-11-09 23:54:32,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 747 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:32,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52697 states. [2024-11-09 23:54:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52697 to 52695. [2024-11-09 23:54:33,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52695 states, 52694 states have (on average 1.48457129844005) internal successors, (78228), 52694 states have internal predecessors, (78228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52695 states to 52695 states and 78228 transitions. [2024-11-09 23:54:33,274 INFO L78 Accepts]: Start accepts. Automaton has 52695 states and 78228 transitions. Word has length 86 [2024-11-09 23:54:33,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:33,274 INFO L471 AbstractCegarLoop]: Abstraction has 52695 states and 78228 transitions. [2024-11-09 23:54:33,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:33,275 INFO L276 IsEmpty]: Start isEmpty. Operand 52695 states and 78228 transitions. [2024-11-09 23:54:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:54:33,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:33,280 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] [2024-11-09 23:54:33,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:54:33,280 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:33,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:33,281 INFO L85 PathProgramCache]: Analyzing trace with hash 28421188, now seen corresponding path program 1 times [2024-11-09 23:54:33,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:33,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969725871] [2024-11-09 23:54:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:33,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:33,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969725871] [2024-11-09 23:54:33,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969725871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:33,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:33,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:33,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570828642] [2024-11-09 23:54:33,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:33,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:33,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:33,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:33,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:33,331 INFO L87 Difference]: Start difference. First operand 52695 states and 78228 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:33,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:33,820 INFO L93 Difference]: Finished difference Result 136656 states and 202955 transitions. [2024-11-09 23:54:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:33,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-09 23:54:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:34,057 INFO L225 Difference]: With dead ends: 136656 [2024-11-09 23:54:34,057 INFO L226 Difference]: Without dead ends: 91993 [2024-11-09 23:54:34,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:34,105 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 220 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 587 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 [2024-11-09 23:54:34,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 587 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:34,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91993 states. [2024-11-09 23:54:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91993 to 91863. [2024-11-09 23:54:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91863 states, 91862 states have (on average 1.4773899980405392) internal successors, (135716), 91862 states have internal predecessors, (135716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91863 states to 91863 states and 135716 transitions. [2024-11-09 23:54:35,287 INFO L78 Accepts]: Start accepts. Automaton has 91863 states and 135716 transitions. Word has length 87 [2024-11-09 23:54:35,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:35,287 INFO L471 AbstractCegarLoop]: Abstraction has 91863 states and 135716 transitions. [2024-11-09 23:54:35,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 91863 states and 135716 transitions. [2024-11-09 23:54:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:54:35,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:35,296 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] [2024-11-09 23:54:35,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:54:35,296 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:35,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash 406699733, now seen corresponding path program 1 times [2024-11-09 23:54:35,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:35,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695493680] [2024-11-09 23:54:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:35,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:35,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:35,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695493680] [2024-11-09 23:54:35,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695493680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:35,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:35,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:35,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644801146] [2024-11-09 23:54:35,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:35,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:35,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:35,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:35,357 INFO L87 Difference]: Start difference. First operand 91863 states and 135716 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:36,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:36,185 INFO L93 Difference]: Finished difference Result 198653 states and 292959 transitions. [2024-11-09 23:54:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:36,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-09 23:54:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:36,358 INFO L225 Difference]: With dead ends: 198653 [2024-11-09 23:54:36,359 INFO L226 Difference]: Without dead ends: 115439 [2024-11-09 23:54:36,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:36,376 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 209 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 585 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 [2024-11-09 23:54:36,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 585 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115439 states. [2024-11-09 23:54:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115439 to 114772. [2024-11-09 23:54:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114772 states, 114771 states have (on average 1.4580251108729556) internal successors, (167339), 114771 states have internal predecessors, (167339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114772 states to 114772 states and 167339 transitions. [2024-11-09 23:54:37,598 INFO L78 Accepts]: Start accepts. Automaton has 114772 states and 167339 transitions. Word has length 87 [2024-11-09 23:54:37,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:37,598 INFO L471 AbstractCegarLoop]: Abstraction has 114772 states and 167339 transitions. [2024-11-09 23:54:37,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:37,598 INFO L276 IsEmpty]: Start isEmpty. Operand 114772 states and 167339 transitions. [2024-11-09 23:54:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:54:37,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:37,608 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] [2024-11-09 23:54:37,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:54:37,609 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:37,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:37,609 INFO L85 PathProgramCache]: Analyzing trace with hash 466898116, now seen corresponding path program 1 times [2024-11-09 23:54:37,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:37,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138059572] [2024-11-09 23:54:37,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:37,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:37,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:37,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138059572] [2024-11-09 23:54:37,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138059572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:37,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:37,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:37,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942377250] [2024-11-09 23:54:37,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:37,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:37,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:37,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:37,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:37,662 INFO L87 Difference]: Start difference. First operand 114772 states and 167339 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:38,486 INFO L93 Difference]: Finished difference Result 231541 states and 336746 transitions. [2024-11-09 23:54:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:38,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-09 23:54:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:38,673 INFO L225 Difference]: With dead ends: 231541 [2024-11-09 23:54:38,673 INFO L226 Difference]: Without dead ends: 141591 [2024-11-09 23:54:38,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:38,737 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 197 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 583 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 [2024-11-09 23:54:38,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 583 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141591 states. [2024-11-09 23:54:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141591 to 140512. [2024-11-09 23:54:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140512 states, 140511 states have (on average 1.4359658674409832) internal successors, (201769), 140511 states have internal predecessors, (201769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140512 states to 140512 states and 201769 transitions. [2024-11-09 23:54:40,651 INFO L78 Accepts]: Start accepts. Automaton has 140512 states and 201769 transitions. Word has length 87 [2024-11-09 23:54:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:40,651 INFO L471 AbstractCegarLoop]: Abstraction has 140512 states and 201769 transitions. [2024-11-09 23:54:40,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 140512 states and 201769 transitions. [2024-11-09 23:54:40,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:54:40,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:40,663 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] [2024-11-09 23:54:40,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:54:40,663 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:40,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:40,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1053382378, now seen corresponding path program 1 times [2024-11-09 23:54:40,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:40,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28692481] [2024-11-09 23:54:40,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:40,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:40,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28692481] [2024-11-09 23:54:40,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28692481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:40,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:40,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:40,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318799834] [2024-11-09 23:54:40,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:40,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:40,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:40,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:40,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:40,776 INFO L87 Difference]: Start difference. First operand 140512 states and 201769 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:41,916 INFO L93 Difference]: Finished difference Result 325896 states and 469280 transitions. [2024-11-09 23:54:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:41,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-09 23:54:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:42,278 INFO L225 Difference]: With dead ends: 325896 [2024-11-09 23:54:42,278 INFO L226 Difference]: Without dead ends: 303346 [2024-11-09 23:54:42,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:54:42,338 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 2169 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:42,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2169 Valid, 1573 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303346 states. [2024-11-09 23:54:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303346 to 162772. [2024-11-09 23:54:44,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162772 states, 162771 states have (on average 1.4337013350043928) internal successors, (233365), 162771 states have internal predecessors, (233365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162772 states to 162772 states and 233365 transitions. [2024-11-09 23:54:45,602 INFO L78 Accepts]: Start accepts. Automaton has 162772 states and 233365 transitions. Word has length 87 [2024-11-09 23:54:45,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:45,603 INFO L471 AbstractCegarLoop]: Abstraction has 162772 states and 233365 transitions. [2024-11-09 23:54:45,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 162772 states and 233365 transitions. [2024-11-09 23:54:45,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:54:45,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:45,614 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] [2024-11-09 23:54:45,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:54:45,614 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:45,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:45,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1195499541, now seen corresponding path program 1 times [2024-11-09 23:54:45,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:45,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74494459] [2024-11-09 23:54:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:45,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:45,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74494459] [2024-11-09 23:54:45,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74494459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:45,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:45,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:45,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407971906] [2024-11-09 23:54:45,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:45,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:45,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:45,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:45,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:45,664 INFO L87 Difference]: Start difference. First operand 162772 states and 233365 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:46,259 INFO L93 Difference]: Finished difference Result 300695 states and 429268 transitions. [2024-11-09 23:54:46,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:46,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-09 23:54:46,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:46,484 INFO L225 Difference]: With dead ends: 300695 [2024-11-09 23:54:46,484 INFO L226 Difference]: Without dead ends: 192327 [2024-11-09 23:54:46,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:46,590 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 185 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 603 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 [2024-11-09 23:54:46,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 603 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:47,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192327 states. [2024-11-09 23:54:48,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192327 to 190707. [2024-11-09 23:54:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190707 states, 190706 states have (on average 1.4075015993204198) internal successors, (268419), 190706 states have internal predecessors, (268419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:49,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190707 states to 190707 states and 268419 transitions. [2024-11-09 23:54:49,867 INFO L78 Accepts]: Start accepts. Automaton has 190707 states and 268419 transitions. Word has length 87 [2024-11-09 23:54:49,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:49,867 INFO L471 AbstractCegarLoop]: Abstraction has 190707 states and 268419 transitions. [2024-11-09 23:54:49,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:49,867 INFO L276 IsEmpty]: Start isEmpty. Operand 190707 states and 268419 transitions. [2024-11-09 23:54:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:54:49,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:49,880 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] [2024-11-09 23:54:49,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:54:49,880 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:49,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:49,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1771149452, now seen corresponding path program 1 times [2024-11-09 23:54:49,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:49,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895694287] [2024-11-09 23:54:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:49,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:49,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895694287] [2024-11-09 23:54:49,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895694287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:49,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:49,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:49,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960516817] [2024-11-09 23:54:49,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:49,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:49,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:49,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:49,979 INFO L87 Difference]: Start difference. First operand 190707 states and 268419 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:51,489 INFO L93 Difference]: Finished difference Result 418085 states and 591194 transitions. [2024-11-09 23:54:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-09 23:54:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:52,022 INFO L225 Difference]: With dead ends: 418085 [2024-11-09 23:54:52,022 INFO L226 Difference]: Without dead ends: 376875 [2024-11-09 23:54:52,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:54:52,106 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 1946 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:52,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1671 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376875 states. [2024-11-09 23:54:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376875 to 231435. [2024-11-09 23:54:55,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231435 states, 231434 states have (on average 1.4065133040089184) internal successors, (325515), 231434 states have internal predecessors, (325515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231435 states to 231435 states and 325515 transitions. [2024-11-09 23:54:56,097 INFO L78 Accepts]: Start accepts. Automaton has 231435 states and 325515 transitions. Word has length 87 [2024-11-09 23:54:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:56,097 INFO L471 AbstractCegarLoop]: Abstraction has 231435 states and 325515 transitions. [2024-11-09 23:54:56,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:56,097 INFO L276 IsEmpty]: Start isEmpty. Operand 231435 states and 325515 transitions. [2024-11-09 23:54:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:54:56,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:56,112 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] [2024-11-09 23:54:56,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:54:56,112 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:56,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:56,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2119936061, now seen corresponding path program 1 times [2024-11-09 23:54:56,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:56,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008906071] [2024-11-09 23:54:56,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:56,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:56,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:56,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008906071] [2024-11-09 23:54:56,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008906071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:56,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:56,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:56,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259760739] [2024-11-09 23:54:56,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:56,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:56,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:56,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:56,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:56,220 INFO L87 Difference]: Start difference. First operand 231435 states and 325515 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:57,940 INFO L93 Difference]: Finished difference Result 476849 states and 674174 transitions. [2024-11-09 23:54:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:57,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-09 23:54:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:58,549 INFO L225 Difference]: With dead ends: 476849 [2024-11-09 23:54:58,549 INFO L226 Difference]: Without dead ends: 417267 [2024-11-09 23:54:58,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:54:58,687 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1923 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:58,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 1802 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:59,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417267 states. [2024-11-09 23:55:03,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417267 to 277127. [2024-11-09 23:55:03,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277127 states, 277126 states have (on average 1.4079768769440615) internal successors, (390187), 277126 states have internal predecessors, (390187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277127 states to 277127 states and 390187 transitions. [2024-11-09 23:55:03,637 INFO L78 Accepts]: Start accepts. Automaton has 277127 states and 390187 transitions. Word has length 87 [2024-11-09 23:55:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:03,637 INFO L471 AbstractCegarLoop]: Abstraction has 277127 states and 390187 transitions. [2024-11-09 23:55:03,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 277127 states and 390187 transitions. [2024-11-09 23:55:03,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 23:55:03,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:03,651 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] [2024-11-09 23:55:03,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:55:03,651 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:03,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash -905544332, now seen corresponding path program 1 times [2024-11-09 23:55:03,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:03,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506933902] [2024-11-09 23:55:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:03,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:03,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:03,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:03,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506933902] [2024-11-09 23:55:03,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506933902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:03,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:03,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:03,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210754203] [2024-11-09 23:55:03,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:03,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:03,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:03,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:03,752 INFO L87 Difference]: Start difference. First operand 277127 states and 390187 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)