./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+cfa-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.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c056d4e57d61d37550728f0e28e1a5e47ebeedfd3e4791c23bdeb0bab1210358 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:00:50,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:00:50,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:00:50,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:00:50,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:00:50,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:00:50,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:00:50,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:00:50,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:00:50,770 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:00:50,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:00:50,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:00:50,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:00:50,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:00:50,773 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:00:50,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:00:50,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:00:50,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:00:50,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:00:50,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:00:50,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:00:50,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:00:50,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:00:50,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:00:50,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:00:50,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:00:50,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:00:50,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:00:50,780 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:00:50,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:00:50,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:00:50,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:00:50,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:00:50,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:00:50,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:00:50,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:00:50,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:00:50,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:00:50,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:00:50,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:00:50,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:00:50,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:00:50,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c056d4e57d61d37550728f0e28e1a5e47ebeedfd3e4791c23bdeb0bab1210358 [2024-11-10 00:00:51,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:00:51,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:00:51,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:00:51,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:00:51,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:00:51,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-10 00:00:52,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:00:52,588 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:00:52,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-10 00:00:52,605 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d89bff0/569beab3d2ad4421bf1f87200efc3fe3/FLAGdc7ff06fc [2024-11-10 00:00:52,618 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37d89bff0/569beab3d2ad4421bf1f87200efc3fe3 [2024-11-10 00:00:52,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:00:52,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:00:52,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:00:52,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:00:52,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:00:52,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:00:52" (1/1) ... [2024-11-10 00:00:52,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a05a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:52, skipping insertion in model container [2024-11-10 00:00:52,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:00:52" (1/1) ... [2024-11-10 00:00:52,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:00:52,883 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.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[5769,5782] [2024-11-10 00:00:52,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:00:52,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:00:52,970 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.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[5769,5782] [2024-11-10 00:00:52,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:00:53,002 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:00:53,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53 WrapperNode [2024-11-10 00:00:53,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:00:53,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:00:53,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:00:53,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:00:53,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,044 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 456 [2024-11-10 00:00:53,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:00:53,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:00:53,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:00:53,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:00:53,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,058 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,071 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]. [2024-11-10 00:00:53,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,077 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:00:53,084 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:00:53,085 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:00:53,085 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:00:53,085 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (1/1) ... [2024-11-10 00:00:53,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:00:53,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:00:53,122 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) [2024-11-10 00:00:53,123 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 [2024-11-10 00:00:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:00:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:00:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:00:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:00:53,301 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:00:53,302 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:00:53,741 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L490: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:53,741 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L400: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:53,741 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L244: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:00:53,741 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L244: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L244: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: 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; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: 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; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: 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; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: 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; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L295: 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; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L535: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L445: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:53,742 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L214: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L214: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L214: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L355: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,743 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,744 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,745 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,746 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,747 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,747 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,747 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L183: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:00:53,770 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-10 00:00:53,772 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:00:53,789 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:00:53,789 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:00:53,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:00:53 BoogieIcfgContainer [2024-11-10 00:00:53,790 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:00:53,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:00:53,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:00:53,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:00:53,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:00:52" (1/3) ... [2024-11-10 00:00:53,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131ab232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:00:53, skipping insertion in model container [2024-11-10 00:00:53,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:00:53" (2/3) ... [2024-11-10 00:00:53,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131ab232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:00:53, skipping insertion in model container [2024-11-10 00:00:53,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:00:53" (3/3) ... [2024-11-10 00:00:53,799 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-10 00:00:53,812 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:00:53,813 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:00:53,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:00:53,878 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;@2cf23f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:00:53,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:00:53,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 100 states have (on average 1.7) internal successors, (170), 101 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:53,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:00:53,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:53,894 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] [2024-11-10 00:00:53,894 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:53,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:53,900 INFO L85 PathProgramCache]: Analyzing trace with hash 65087031, now seen corresponding path program 1 times [2024-11-10 00:00:53,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:53,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112248364] [2024-11-10 00:00:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:53,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:54,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112248364] [2024-11-10 00:00:54,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112248364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:54,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:54,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:54,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062087587] [2024-11-10 00:00:54,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:54,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:54,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:54,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:54,355 INFO L87 Difference]: Start difference. First operand has 102 states, 100 states have (on average 1.7) internal successors, (170), 101 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:54,407 INFO L93 Difference]: Finished difference Result 228 states and 363 transitions. [2024-11-10 00:00:54,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-10 00:00:54,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:54,417 INFO L225 Difference]: With dead ends: 228 [2024-11-10 00:00:54,417 INFO L226 Difference]: Without dead ends: 154 [2024-11-10 00:00:54,420 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 [2024-11-10 00:00:54,423 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 118 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:54,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 352 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:54,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-10 00:00:54,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2024-11-10 00:00:54,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4370860927152318) internal successors, (217), 151 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 217 transitions. [2024-11-10 00:00:54,456 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 217 transitions. Word has length 60 [2024-11-10 00:00:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:54,459 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 217 transitions. [2024-11-10 00:00:54,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,460 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 217 transitions. [2024-11-10 00:00:54,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 00:00:54,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:54,462 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] [2024-11-10 00:00:54,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:00:54,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:54,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:54,463 INFO L85 PathProgramCache]: Analyzing trace with hash -291959792, now seen corresponding path program 1 times [2024-11-10 00:00:54,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:54,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960031472] [2024-11-10 00:00:54,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:54,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:54,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:54,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960031472] [2024-11-10 00:00:54,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960031472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:54,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:54,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:54,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974504796] [2024-11-10 00:00:54,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:54,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:54,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:54,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:54,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:54,623 INFO L87 Difference]: Start difference. First operand 152 states and 217 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:54,653 INFO L93 Difference]: Finished difference Result 372 states and 557 transitions. [2024-11-10 00:00:54,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-10 00:00:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:54,656 INFO L225 Difference]: With dead ends: 372 [2024-11-10 00:00:54,656 INFO L226 Difference]: Without dead ends: 254 [2024-11-10 00:00:54,657 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 [2024-11-10 00:00:54,659 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 83 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:54,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 304 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-10 00:00:54,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 252. [2024-11-10 00:00:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 251 states have (on average 1.4780876494023905) internal successors, (371), 251 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 371 transitions. [2024-11-10 00:00:54,674 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 371 transitions. Word has length 61 [2024-11-10 00:00:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:54,674 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 371 transitions. [2024-11-10 00:00:54,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 371 transitions. [2024-11-10 00:00:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-10 00:00:54,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:54,676 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] [2024-11-10 00:00:54,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:00:54,676 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:54,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1645713502, now seen corresponding path program 1 times [2024-11-10 00:00:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:54,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782290918] [2024-11-10 00:00:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:54,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:54,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782290918] [2024-11-10 00:00:54,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782290918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:54,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:54,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:54,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116014187] [2024-11-10 00:00:54,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:54,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:54,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:54,789 INFO L87 Difference]: Start difference. First operand 252 states and 371 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:54,815 INFO L93 Difference]: Finished difference Result 656 states and 993 transitions. [2024-11-10 00:00:54,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:54,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-10 00:00:54,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:54,817 INFO L225 Difference]: With dead ends: 656 [2024-11-10 00:00:54,817 INFO L226 Difference]: Without dead ends: 438 [2024-11-10 00:00:54,818 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 [2024-11-10 00:00:54,819 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 78 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:54,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 300 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-10 00:00:54,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 436. [2024-11-10 00:00:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.4965517241379311) internal successors, (651), 435 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 651 transitions. [2024-11-10 00:00:54,845 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 651 transitions. Word has length 62 [2024-11-10 00:00:54,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:54,845 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 651 transitions. [2024-11-10 00:00:54,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,846 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 651 transitions. [2024-11-10 00:00:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 00:00:54,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:54,847 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] [2024-11-10 00:00:54,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:00:54,847 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:54,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:54,848 INFO L85 PathProgramCache]: Analyzing trace with hash 273230687, now seen corresponding path program 1 times [2024-11-10 00:00:54,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:54,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189617418] [2024-11-10 00:00:54,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:54,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:54,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:54,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189617418] [2024-11-10 00:00:54,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189617418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:54,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:54,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:54,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88772866] [2024-11-10 00:00:54,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:54,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:54,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:54,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:54,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:54,945 INFO L87 Difference]: Start difference. First operand 436 states and 651 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:54,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:54,969 INFO L93 Difference]: Finished difference Result 1176 states and 1781 transitions. [2024-11-10 00:00:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:54,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-10 00:00:54,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:54,975 INFO L225 Difference]: With dead ends: 1176 [2024-11-10 00:00:54,975 INFO L226 Difference]: Without dead ends: 774 [2024-11-10 00:00:54,978 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 [2024-11-10 00:00:54,979 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 73 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:54,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 296 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:54,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2024-11-10 00:00:54,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 772. [2024-11-10 00:00:54,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 771 states have (on average 1.4980544747081712) internal successors, (1155), 771 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1155 transitions. [2024-11-10 00:00:55,005 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1155 transitions. Word has length 63 [2024-11-10 00:00:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:55,005 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 1155 transitions. [2024-11-10 00:00:55,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,005 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1155 transitions. [2024-11-10 00:00:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-10 00:00:55,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:55,008 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] [2024-11-10 00:00:55,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 00:00:55,008 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:55,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:55,011 INFO L85 PathProgramCache]: Analyzing trace with hash -498651604, now seen corresponding path program 1 times [2024-11-10 00:00:55,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:55,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306027341] [2024-11-10 00:00:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:55,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:55,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:55,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306027341] [2024-11-10 00:00:55,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306027341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:55,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:55,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:55,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902738647] [2024-11-10 00:00:55,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:55,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:55,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:55,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:55,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:55,115 INFO L87 Difference]: Start difference. First operand 772 states and 1155 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:55,139 INFO L93 Difference]: Finished difference Result 2120 states and 3189 transitions. [2024-11-10 00:00:55,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:55,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-10 00:00:55,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:55,144 INFO L225 Difference]: With dead ends: 2120 [2024-11-10 00:00:55,144 INFO L226 Difference]: Without dead ends: 1382 [2024-11-10 00:00:55,146 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 [2024-11-10 00:00:55,147 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 68 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:55,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 292 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-11-10 00:00:55,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2024-11-10 00:00:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4873096446700507) internal successors, (2051), 1379 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2051 transitions. [2024-11-10 00:00:55,178 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2051 transitions. Word has length 64 [2024-11-10 00:00:55,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:55,178 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2051 transitions. [2024-11-10 00:00:55,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2051 transitions. [2024-11-10 00:00:55,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-10 00:00:55,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:55,182 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] [2024-11-10 00:00:55,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 00:00:55,182 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:55,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:55,183 INFO L85 PathProgramCache]: Analyzing trace with hash -787870291, now seen corresponding path program 1 times [2024-11-10 00:00:55,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:55,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440722178] [2024-11-10 00:00:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:55,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:55,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:55,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440722178] [2024-11-10 00:00:55,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440722178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:55,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:55,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422329876] [2024-11-10 00:00:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:55,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:55,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:55,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:55,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:55,350 INFO L87 Difference]: Start difference. First operand 1380 states and 2051 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:55,636 INFO L93 Difference]: Finished difference Result 14840 states and 22221 transitions. [2024-11-10 00:00:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 00:00:55,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-10 00:00:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:55,681 INFO L225 Difference]: With dead ends: 14840 [2024-11-10 00:00:55,681 INFO L226 Difference]: Without dead ends: 13494 [2024-11-10 00:00:55,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:00:55,691 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 1045 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:55,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 2092 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:55,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13494 states. [2024-11-10 00:00:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13494 to 2724. [2024-11-10 00:00:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2723 states have (on average 1.4700697759823724) internal successors, (4003), 2723 states have internal predecessors, (4003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 4003 transitions. [2024-11-10 00:00:55,815 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 4003 transitions. Word has length 65 [2024-11-10 00:00:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:55,816 INFO L471 AbstractCegarLoop]: Abstraction has 2724 states and 4003 transitions. [2024-11-10 00:00:55,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 4003 transitions. [2024-11-10 00:00:55,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-10 00:00:55,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:55,817 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] [2024-11-10 00:00:55,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 00:00:55,818 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:55,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:55,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1970264537, now seen corresponding path program 1 times [2024-11-10 00:00:55,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:55,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85487642] [2024-11-10 00:00:55,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:55,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:56,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:56,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85487642] [2024-11-10 00:00:56,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85487642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:56,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:56,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416835550] [2024-11-10 00:00:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:56,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:56,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:56,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:56,184 INFO L87 Difference]: Start difference. First operand 2724 states and 4003 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:56,408 INFO L93 Difference]: Finished difference Result 5416 states and 7973 transitions. [2024-11-10 00:00:56,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:56,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-10 00:00:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:56,418 INFO L225 Difference]: With dead ends: 5416 [2024-11-10 00:00:56,418 INFO L226 Difference]: Without dead ends: 2726 [2024-11-10 00:00:56,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:00:56,422 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 272 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:56,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 510 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2024-11-10 00:00:56,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2724. [2024-11-10 00:00:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2723 states have (on average 1.458318031582813) internal successors, (3971), 2723 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3971 transitions. [2024-11-10 00:00:56,468 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3971 transitions. Word has length 68 [2024-11-10 00:00:56,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:56,468 INFO L471 AbstractCegarLoop]: Abstraction has 2724 states and 3971 transitions. [2024-11-10 00:00:56,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3971 transitions. [2024-11-10 00:00:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-10 00:00:56,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:56,470 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] [2024-11-10 00:00:56,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:00:56,470 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:56,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash -707510570, now seen corresponding path program 1 times [2024-11-10 00:00:56,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:56,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912101754] [2024-11-10 00:00:56,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:56,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:56,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:56,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912101754] [2024-11-10 00:00:56,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912101754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:56,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:56,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:00:56,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367966464] [2024-11-10 00:00:56,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:56,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:00:56,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:00:56,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:00:56,587 INFO L87 Difference]: Start difference. First operand 2724 states and 3971 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:56,621 INFO L93 Difference]: Finished difference Result 6683 states and 9768 transitions. [2024-11-10 00:00:56,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:00:56,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-10 00:00:56,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:56,632 INFO L225 Difference]: With dead ends: 6683 [2024-11-10 00:00:56,633 INFO L226 Difference]: Without dead ends: 3993 [2024-11-10 00:00:56,638 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 [2024-11-10 00:00:56,639 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:56,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:56,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2024-11-10 00:00:56,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3991. [2024-11-10 00:00:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3990 states have (on average 1.449122807017544) internal successors, (5782), 3990 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 5782 transitions. [2024-11-10 00:00:56,710 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 5782 transitions. Word has length 70 [2024-11-10 00:00:56,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:56,711 INFO L471 AbstractCegarLoop]: Abstraction has 3991 states and 5782 transitions. [2024-11-10 00:00:56,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 5782 transitions. [2024-11-10 00:00:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 00:00:56,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:56,711 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] [2024-11-10 00:00:56,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:00:56,712 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:56,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1049492232, now seen corresponding path program 1 times [2024-11-10 00:00:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:56,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025955852] [2024-11-10 00:00:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:56,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:56,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:56,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:56,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025955852] [2024-11-10 00:00:56,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025955852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:56,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:56,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:00:56,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859624444] [2024-11-10 00:00:56,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:56,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:00:56,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:56,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:00:56,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:00:56,819 INFO L87 Difference]: Start difference. First operand 3991 states and 5782 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:56,904 INFO L93 Difference]: Finished difference Result 7945 states and 11527 transitions. [2024-11-10 00:00:56,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:00:56,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-10 00:00:56,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:56,921 INFO L225 Difference]: With dead ends: 7945 [2024-11-10 00:00:56,921 INFO L226 Difference]: Without dead ends: 3991 [2024-11-10 00:00:56,929 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 [2024-11-10 00:00:56,930 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 324 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:56,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 102 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2024-11-10 00:00:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3991. [2024-11-10 00:00:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3990 states have (on average 1.4370927318295739) internal successors, (5734), 3990 states have internal predecessors, (5734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 5734 transitions. [2024-11-10 00:00:56,985 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 5734 transitions. Word has length 71 [2024-11-10 00:00:56,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:56,985 INFO L471 AbstractCegarLoop]: Abstraction has 3991 states and 5734 transitions. [2024-11-10 00:00:56,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:56,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 5734 transitions. [2024-11-10 00:00:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 00:00:56,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:56,987 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] [2024-11-10 00:00:56,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 00:00:56,987 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:56,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash 822952855, now seen corresponding path program 1 times [2024-11-10 00:00:56,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:56,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841900856] [2024-11-10 00:00:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:56,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:00:57,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:57,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841900856] [2024-11-10 00:00:57,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841900856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:57,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:57,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:00:57,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216133422] [2024-11-10 00:00:57,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:57,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:00:57,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:57,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:00:57,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:00:57,230 INFO L87 Difference]: Start difference. First operand 3991 states and 5734 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:57,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:57,258 INFO L93 Difference]: Finished difference Result 4249 states and 6055 transitions. [2024-11-10 00:00:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:00:57,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-10 00:00:57,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:57,265 INFO L225 Difference]: With dead ends: 4249 [2024-11-10 00:00:57,265 INFO L226 Difference]: Without dead ends: 4247 [2024-11-10 00:00:57,267 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 [2024-11-10 00:00:57,267 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:57,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 504 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:00:57,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2024-11-10 00:00:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4247. [2024-11-10 00:00:57,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4247 states, 4246 states have (on average 1.406971267074894) internal successors, (5974), 4246 states have internal predecessors, (5974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 5974 transitions. [2024-11-10 00:00:57,346 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 5974 transitions. Word has length 71 [2024-11-10 00:00:57,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:57,346 INFO L471 AbstractCegarLoop]: Abstraction has 4247 states and 5974 transitions. [2024-11-10 00:00:57,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:57,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 5974 transitions. [2024-11-10 00:00:57,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:57,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:57,349 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:57,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 00:00:57,349 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:57,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:57,350 INFO L85 PathProgramCache]: Analyzing trace with hash -951377465, now seen corresponding path program 1 times [2024-11-10 00:00:57,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:57,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27208188] [2024-11-10 00:00:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:57,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 00:00:57,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:57,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27208188] [2024-11-10 00:00:57,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27208188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:57,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:57,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:57,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582332750] [2024-11-10 00:00:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:57,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:57,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:57,513 INFO L87 Difference]: Start difference. First operand 4247 states and 5974 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:57,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:57,678 INFO L93 Difference]: Finished difference Result 24899 states and 35028 transitions. [2024-11-10 00:00:57,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:57,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-10 00:00:57,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:57,718 INFO L225 Difference]: With dead ends: 24899 [2024-11-10 00:00:57,718 INFO L226 Difference]: Without dead ends: 21953 [2024-11-10 00:00:57,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:57,732 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 764 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:57,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1221 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21953 states. [2024-11-10 00:00:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21953 to 7847. [2024-11-10 00:00:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7847 states, 7846 states have (on average 1.400713739485088) internal successors, (10990), 7846 states have internal predecessors, (10990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7847 states to 7847 states and 10990 transitions. [2024-11-10 00:00:57,943 INFO L78 Accepts]: Start accepts. Automaton has 7847 states and 10990 transitions. Word has length 98 [2024-11-10 00:00:57,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:57,944 INFO L471 AbstractCegarLoop]: Abstraction has 7847 states and 10990 transitions. [2024-11-10 00:00:57,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7847 states and 10990 transitions. [2024-11-10 00:00:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:57,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:57,946 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:57,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 00:00:57,946 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:57,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash -842219610, now seen corresponding path program 1 times [2024-11-10 00:00:57,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:57,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749302829] [2024-11-10 00:00:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:57,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 00:00:58,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:58,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749302829] [2024-11-10 00:00:58,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749302829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:58,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:58,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:58,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357204104] [2024-11-10 00:00:58,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:58,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:58,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:58,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:58,095 INFO L87 Difference]: Start difference. First operand 7847 states and 10990 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:58,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:58,313 INFO L93 Difference]: Finished difference Result 29107 states and 40932 transitions. [2024-11-10 00:00:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:58,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-10 00:00:58,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:58,355 INFO L225 Difference]: With dead ends: 29107 [2024-11-10 00:00:58,355 INFO L226 Difference]: Without dead ends: 24897 [2024-11-10 00:00:58,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:58,371 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 761 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:58,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1197 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:58,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24897 states. [2024-11-10 00:00:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24897 to 13527. [2024-11-10 00:00:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13527 states, 13526 states have (on average 1.398048203460003) internal successors, (18910), 13526 states have internal predecessors, (18910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13527 states to 13527 states and 18910 transitions. [2024-11-10 00:00:58,659 INFO L78 Accepts]: Start accepts. Automaton has 13527 states and 18910 transitions. Word has length 98 [2024-11-10 00:00:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:58,659 INFO L471 AbstractCegarLoop]: Abstraction has 13527 states and 18910 transitions. [2024-11-10 00:00:58,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 13527 states and 18910 transitions. [2024-11-10 00:00:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:58,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:58,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:58,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 00:00:58,662 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:58,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1211153639, now seen corresponding path program 1 times [2024-11-10 00:00:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:58,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401942371] [2024-11-10 00:00:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 00:00:58,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:58,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401942371] [2024-11-10 00:00:58,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401942371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:58,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:58,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:58,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596072398] [2024-11-10 00:00:58,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:58,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:58,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:58,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:58,878 INFO L87 Difference]: Start difference. First operand 13527 states and 18910 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:59,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:59,070 INFO L93 Difference]: Finished difference Result 33315 states and 46820 transitions. [2024-11-10 00:00:59,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:59,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-10 00:00:59,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:59,119 INFO L225 Difference]: With dead ends: 33315 [2024-11-10 00:00:59,120 INFO L226 Difference]: Without dead ends: 29105 [2024-11-10 00:00:59,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:00:59,138 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 793 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:59,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1146 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:59,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29105 states. [2024-11-10 00:00:59,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29105 to 17735. [2024-11-10 00:00:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17735 states, 17734 states have (on average 1.3983308898161724) internal successors, (24798), 17734 states have internal predecessors, (24798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17735 states to 17735 states and 24798 transitions. [2024-11-10 00:00:59,484 INFO L78 Accepts]: Start accepts. Automaton has 17735 states and 24798 transitions. Word has length 98 [2024-11-10 00:00:59,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:00:59,485 INFO L471 AbstractCegarLoop]: Abstraction has 17735 states and 24798 transitions. [2024-11-10 00:00:59,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:59,486 INFO L276 IsEmpty]: Start isEmpty. Operand 17735 states and 24798 transitions. [2024-11-10 00:00:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:00:59,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:00:59,489 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:00:59,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 00:00:59,490 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:00:59,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:00:59,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1597920826, now seen corresponding path program 1 times [2024-11-10 00:00:59,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:00:59,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364236195] [2024-11-10 00:00:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:00:59,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:00:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:00:59,630 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 00:00:59,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:00:59,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364236195] [2024-11-10 00:00:59,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364236195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:00:59,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:00:59,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:00:59,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207651106] [2024-11-10 00:00:59,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:00:59,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:00:59,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:00:59,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:00:59,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:00:59,632 INFO L87 Difference]: Start difference. First operand 17735 states and 24798 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:00:59,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:00:59,872 INFO L93 Difference]: Finished difference Result 37523 states and 52708 transitions. [2024-11-10 00:00:59,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:00:59,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-10 00:00:59,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:00:59,926 INFO L225 Difference]: With dead ends: 37523 [2024-11-10 00:00:59,926 INFO L226 Difference]: Without dead ends: 33313 [2024-11-10 00:00:59,943 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 [2024-11-10 00:00:59,944 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 850 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:00:59,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1121 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:00:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33313 states. [2024-11-10 00:01:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33313 to 21943. [2024-11-10 00:01:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21943 states, 21942 states have (on average 1.3985051499407528) internal successors, (30686), 21942 states have internal predecessors, (30686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:00,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21943 states to 21943 states and 30686 transitions. [2024-11-10 00:01:00,357 INFO L78 Accepts]: Start accepts. Automaton has 21943 states and 30686 transitions. Word has length 98 [2024-11-10 00:01:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:00,357 INFO L471 AbstractCegarLoop]: Abstraction has 21943 states and 30686 transitions. [2024-11-10 00:01:00,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 21943 states and 30686 transitions. [2024-11-10 00:01:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:01:00,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:00,361 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:00,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 00:01:00,361 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:00,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:00,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1519159289, now seen corresponding path program 1 times [2024-11-10 00:01:00,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:00,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259281425] [2024-11-10 00:01:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:00,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 00:01:00,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:00,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259281425] [2024-11-10 00:01:00,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259281425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:00,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:00,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:00,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123622257] [2024-11-10 00:01:00,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:00,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:00,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:00,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:00,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:00,504 INFO L87 Difference]: Start difference. First operand 21943 states and 30686 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:00,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:00,831 INFO L93 Difference]: Finished difference Result 41731 states and 58596 transitions. [2024-11-10 00:01:00,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:01:00,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-10 00:01:00,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:00,891 INFO L225 Difference]: With dead ends: 41731 [2024-11-10 00:01:00,891 INFO L226 Difference]: Without dead ends: 37521 [2024-11-10 00:01:00,908 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 [2024-11-10 00:01:00,909 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 770 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:00,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 1229 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:00,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37521 states. [2024-11-10 00:01:01,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37521 to 26151. [2024-11-10 00:01:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26151 states, 26150 states have (on average 1.3986233269598471) internal successors, (36574), 26150 states have internal predecessors, (36574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26151 states to 26151 states and 36574 transitions. [2024-11-10 00:01:01,369 INFO L78 Accepts]: Start accepts. Automaton has 26151 states and 36574 transitions. Word has length 98 [2024-11-10 00:01:01,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:01,369 INFO L471 AbstractCegarLoop]: Abstraction has 26151 states and 36574 transitions. [2024-11-10 00:01:01,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:01,369 INFO L276 IsEmpty]: Start isEmpty. Operand 26151 states and 36574 transitions. [2024-11-10 00:01:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-10 00:01:01,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:01,374 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:01,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 00:01:01,375 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:01,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash 3064450, now seen corresponding path program 1 times [2024-11-10 00:01:01,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:01,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347035950] [2024-11-10 00:01:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:01,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:01,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:01,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347035950] [2024-11-10 00:01:01,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347035950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:01:01,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704939985] [2024-11-10 00:01:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:01,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:01:01,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:01:01,769 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:01:01,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 00:01:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:01,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-10 00:01:01,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:01:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:03,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:01:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:03,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704939985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:01:03,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:01:03,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2024-11-10 00:01:03,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135390482] [2024-11-10 00:01:03,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:01:03,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-10 00:01:03,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-10 00:01:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2024-11-10 00:01:03,857 INFO L87 Difference]: Start difference. First operand 26151 states and 36574 transitions. Second operand has 30 states, 30 states have (on average 9.033333333333333) internal successors, (271), 30 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:16,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:16,494 INFO L93 Difference]: Finished difference Result 342930 states and 484855 transitions. [2024-11-10 00:01:16,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2024-11-10 00:01:16,495 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.033333333333333) internal successors, (271), 30 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-10 00:01:16,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:16,969 INFO L225 Difference]: With dead ends: 342930 [2024-11-10 00:01:16,969 INFO L226 Difference]: Without dead ends: 316816 [2024-11-10 00:01:17,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27227 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=8318, Invalid=56452, Unknown=0, NotChecked=0, Total=64770 [2024-11-10 00:01:17,099 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 10287 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 3746 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10287 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 3831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:17,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10287 Valid, 2439 Invalid, 3831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3746 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-10 00:01:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316816 states. [2024-11-10 00:01:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316816 to 151209. [2024-11-10 00:01:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151209 states, 151208 states have (on average 1.3813158033966457) internal successors, (208866), 151208 states have internal predecessors, (208866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151209 states to 151209 states and 208866 transitions. [2024-11-10 00:01:20,863 INFO L78 Accepts]: Start accepts. Automaton has 151209 states and 208866 transitions. Word has length 100 [2024-11-10 00:01:20,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:20,864 INFO L471 AbstractCegarLoop]: Abstraction has 151209 states and 208866 transitions. [2024-11-10 00:01:20,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.033333333333333) internal successors, (271), 30 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 151209 states and 208866 transitions. [2024-11-10 00:01:20,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 00:01:20,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:20,874 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:20,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 00:01:21,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 00:01:21,075 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:21,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash -782184601, now seen corresponding path program 1 times [2024-11-10 00:01:21,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:21,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482035550] [2024-11-10 00:01:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:21,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:21,633 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:21,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:21,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482035550] [2024-11-10 00:01:21,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482035550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:01:21,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557074725] [2024-11-10 00:01:21,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:21,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:01:21,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:01:21,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:01:21,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 00:01:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:21,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 00:01:21,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:01:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:22,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:01:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:23,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557074725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:01:23,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:01:23,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2024-11-10 00:01:23,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271332812] [2024-11-10 00:01:23,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:01:23,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-10 00:01:23,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:23,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-10 00:01:23,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2024-11-10 00:01:23,429 INFO L87 Difference]: Start difference. First operand 151209 states and 208866 transitions. Second operand has 30 states, 30 states have (on average 9.4) internal successors, (282), 30 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:52,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:52,792 INFO L93 Difference]: Finished difference Result 2291467 states and 3183843 transitions. [2024-11-10 00:01:52,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 449 states. [2024-11-10 00:01:52,793 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.4) internal successors, (282), 30 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-10 00:01:52,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:56,995 INFO L225 Difference]: With dead ends: 2291467 [2024-11-10 00:01:56,995 INFO L226 Difference]: Without dead ends: 2140295 [2024-11-10 00:01:57,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 474 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105963 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=26335, Invalid=199765, Unknown=0, NotChecked=0, Total=226100 [2024-11-10 00:01:57,458 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 13603 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 4192 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13603 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 4310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:57,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13603 Valid, 3498 Invalid, 4310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4192 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-10 00:01:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140295 states.