./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.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-var-start-time.5.ufo.UNBOUNDED.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 8d970a6b46f522cdb24394c622109e56254d5436a464b2c277d963fe4612a422 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:55:40,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:55:40,747 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:55:40,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:55:40,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:55:40,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:55:40,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:55:40,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:55:40,781 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:55:40,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:55:40,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:55:40,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:55:40,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:55:40,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:55:40,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:55:40,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:55:40,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:55:40,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:55:40,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:55:40,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:55:40,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:55:40,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:55:40,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:55:40,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:55:40,790 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:55:40,791 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:55:40,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:55:40,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:55:40,791 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:55:40,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:55:40,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:55:40,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:55:40,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:55:40,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:55:40,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:55:40,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:55:40,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:55:40,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:55:40,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:55:40,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:55:40,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:55:40,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:55:40,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d970a6b46f522cdb24394c622109e56254d5436a464b2c277d963fe4612a422 [2024-11-09 23:55:41,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:55:41,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:55:41,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:55:41,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:55:41,120 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:55:41,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:55:42,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:55:42,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:55:42,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:55:42,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29e59cca/907925bb1c0940428b26b3826cbd9ad7/FLAG42ae6ea61 [2024-11-09 23:55:42,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29e59cca/907925bb1c0940428b26b3826cbd9ad7 [2024-11-09 23:55:42,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:55:42,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:55:42,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:55:42,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:55:42,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:55:42,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:55:42" (1/1) ... [2024-11-09 23:55:42,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a13e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:42, skipping insertion in model container [2024-11-09 23:55:42,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:55:42" (1/1) ... [2024-11-09 23:55:42,871 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:55:43,101 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6356,6369] [2024-11-09 23:55:43,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:55:43,155 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:55:43,215 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6356,6369] [2024-11-09 23:55:43,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:55:43,256 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:55:43,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43 WrapperNode [2024-11-09 23:55:43,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:55:43,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:55:43,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:55:43,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:55:43,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,321 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 572 [2024-11-09 23:55:43,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:55:43,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:55:43,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:55:43,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:55:43,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,339 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,357 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:55:43,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,369 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:55:43,378 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:55:43,378 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:55:43,379 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:55:43,379 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (1/1) ... [2024-11-09 23:55:43,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:55:43,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:55:43,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:55:43,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:55:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:55:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:55:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:55:43,620 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:55:43,624 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:55:44,218 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:44,220 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:44,221 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:44,221 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:44,221 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L631: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:44,221 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L401: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:44,221 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:44,222 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:44,222 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:44,222 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:44,223 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:44,223 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L487: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:44,224 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:44,224 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,224 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,224 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,224 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,224 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,228 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,229 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:44,230 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L573: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:44,230 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:55:44,230 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:55:44,230 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:55:44,230 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:44,230 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L459: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:44,231 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:44,231 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L545: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:44,260 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-09 23:55:44,260 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:55:44,280 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:55:44,281 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:55:44,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:55:44 BoogieIcfgContainer [2024-11-09 23:55:44,282 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:55:44,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:55:44,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:55:44,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:55:44,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:55:42" (1/3) ... [2024-11-09 23:55:44,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a073024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:55:44, skipping insertion in model container [2024-11-09 23:55:44,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:43" (2/3) ... [2024-11-09 23:55:44,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a073024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:55:44, skipping insertion in model container [2024-11-09 23:55:44,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:55:44" (3/3) ... [2024-11-09 23:55:44,294 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:55:44,308 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:55:44,308 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:55:44,376 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:55:44,383 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;@132c777d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:55:44,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:55:44,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 143 states have (on average 1.6573426573426573) internal successors, (237), 144 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 23:55:44,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:44,402 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] [2024-11-09 23:55:44,402 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:44,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:44,409 INFO L85 PathProgramCache]: Analyzing trace with hash -724250090, now seen corresponding path program 1 times [2024-11-09 23:55:44,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:44,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953151908] [2024-11-09 23:55:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:44,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:44,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:44,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953151908] [2024-11-09 23:55:44,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953151908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:44,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:44,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:44,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433666878] [2024-11-09 23:55:44,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:44,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:44,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:44,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:44,966 INFO L87 Difference]: Start difference. First operand has 145 states, 143 states have (on average 1.6573426573426573) internal successors, (237), 144 states have internal predecessors, (237), 0 states have call successors, (0), 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 20.333333333333332) 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) [2024-11-09 23:55:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:45,039 INFO L93 Difference]: Finished difference Result 346 states and 546 transitions. [2024-11-09 23:55:45,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:45,042 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 [2024-11-09 23:55:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:45,052 INFO L225 Difference]: With dead ends: 346 [2024-11-09 23:55:45,053 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 23:55:45,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:45,060 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 172 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 503 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 [2024-11-09 23:55:45,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 503 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:45,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 23:55:45,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2024-11-09 23:55:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.4801762114537445) internal successors, (336), 227 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 336 transitions. [2024-11-09 23:55:45,112 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 336 transitions. Word has length 61 [2024-11-09 23:55:45,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:45,114 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 336 transitions. [2024-11-09 23:55:45,114 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) [2024-11-09 23:55:45,115 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 336 transitions. [2024-11-09 23:55:45,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 23:55:45,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:45,118 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] [2024-11-09 23:55:45,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:55:45,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:45,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:45,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1087762695, now seen corresponding path program 1 times [2024-11-09 23:55:45,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:45,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361197168] [2024-11-09 23:55:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:45,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:45,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:45,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361197168] [2024-11-09 23:55:45,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361197168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:45,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:45,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944005395] [2024-11-09 23:55:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:45,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:45,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:45,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:45,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:45,291 INFO L87 Difference]: Start difference. First operand 228 states and 336 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) [2024-11-09 23:55:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:45,357 INFO L93 Difference]: Finished difference Result 580 states and 884 transitions. [2024-11-09 23:55:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:45,358 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 [2024-11-09 23:55:45,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:45,361 INFO L225 Difference]: With dead ends: 580 [2024-11-09 23:55:45,361 INFO L226 Difference]: Without dead ends: 387 [2024-11-09 23:55:45,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:45,363 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 142 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 440 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 [2024-11-09 23:55:45,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 440 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-09 23:55:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2024-11-09 23:55:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5104166666666667) internal successors, (580), 384 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 580 transitions. [2024-11-09 23:55:45,393 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 580 transitions. Word has length 62 [2024-11-09 23:55:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:45,393 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 580 transitions. [2024-11-09 23:55:45,393 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) [2024-11-09 23:55:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 580 transitions. [2024-11-09 23:55:45,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 23:55:45,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:45,395 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] [2024-11-09 23:55:45,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:55:45,396 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:45,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:45,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1112992208, now seen corresponding path program 1 times [2024-11-09 23:55:45,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:45,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045067346] [2024-11-09 23:55:45,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:45,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:45,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:45,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045067346] [2024-11-09 23:55:45,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045067346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:45,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:45,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:45,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970120508] [2024-11-09 23:55:45,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:45,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:45,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:45,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:45,519 INFO L87 Difference]: Start difference. First operand 385 states and 580 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) [2024-11-09 23:55:45,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:45,549 INFO L93 Difference]: Finished difference Result 1017 states and 1562 transitions. [2024-11-09 23:55:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:45,550 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 [2024-11-09 23:55:45,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:45,555 INFO L225 Difference]: With dead ends: 1017 [2024-11-09 23:55:45,555 INFO L226 Difference]: Without dead ends: 667 [2024-11-09 23:55:45,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:45,561 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 137 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 425 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 [2024-11-09 23:55:45,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 425 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:45,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-09 23:55:45,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 665. [2024-11-09 23:55:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.5240963855421688) internal successors, (1012), 664 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1012 transitions. [2024-11-09 23:55:45,594 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1012 transitions. Word has length 63 [2024-11-09 23:55:45,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:45,595 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1012 transitions. [2024-11-09 23:55:45,595 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) [2024-11-09 23:55:45,595 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1012 transitions. [2024-11-09 23:55:45,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:55:45,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:45,596 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] [2024-11-09 23:55:45,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:55:45,597 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:45,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:45,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1214623535, now seen corresponding path program 1 times [2024-11-09 23:55:45,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:45,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372239325] [2024-11-09 23:55:45,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:45,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:45,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372239325] [2024-11-09 23:55:45,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372239325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:45,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:45,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:45,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742064315] [2024-11-09 23:55:45,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:45,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:45,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:45,702 INFO L87 Difference]: Start difference. First operand 665 states and 1012 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) [2024-11-09 23:55:45,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:45,731 INFO L93 Difference]: Finished difference Result 1789 states and 2750 transitions. [2024-11-09 23:55:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:45,732 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 [2024-11-09 23:55:45,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:45,736 INFO L225 Difference]: With dead ends: 1789 [2024-11-09 23:55:45,736 INFO L226 Difference]: Without dead ends: 1159 [2024-11-09 23:55:45,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:45,742 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 132 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 410 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 [2024-11-09 23:55:45,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 410 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:45,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-09 23:55:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2024-11-09 23:55:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.5259515570934257) internal successors, (1764), 1156 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1764 transitions. [2024-11-09 23:55:45,769 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1764 transitions. Word has length 64 [2024-11-09 23:55:45,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:45,770 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1764 transitions. [2024-11-09 23:55:45,771 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) [2024-11-09 23:55:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1764 transitions. [2024-11-09 23:55:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 23:55:45,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:45,772 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] [2024-11-09 23:55:45,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:55:45,772 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:45,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1975437366, now seen corresponding path program 1 times [2024-11-09 23:55:45,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:45,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519485938] [2024-11-09 23:55:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:45,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:46,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:46,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519485938] [2024-11-09 23:55:46,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519485938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:46,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:46,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:46,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414992274] [2024-11-09 23:55:46,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:46,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:46,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:46,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:46,013 INFO L87 Difference]: Start difference. First operand 1157 states and 1764 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) [2024-11-09 23:55:46,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:46,238 INFO L93 Difference]: Finished difference Result 7889 states and 12138 transitions. [2024-11-09 23:55:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:46,239 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 [2024-11-09 23:55:46,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:46,269 INFO L225 Difference]: With dead ends: 7889 [2024-11-09 23:55:46,270 INFO L226 Difference]: Without dead ends: 6767 [2024-11-09 23:55:46,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:55:46,277 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1537 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:46,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 2535 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:46,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6767 states. [2024-11-09 23:55:46,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6767 to 2277. [2024-11-09 23:55:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.5202108963093146) internal successors, (3460), 2276 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:46,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 3460 transitions. [2024-11-09 23:55:46,364 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 3460 transitions. Word has length 65 [2024-11-09 23:55:46,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:46,364 INFO L471 AbstractCegarLoop]: Abstraction has 2277 states and 3460 transitions. [2024-11-09 23:55:46,365 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) [2024-11-09 23:55:46,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 3460 transitions. [2024-11-09 23:55:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:55:46,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:46,366 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] [2024-11-09 23:55:46,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:55:46,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:46,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:46,367 INFO L85 PathProgramCache]: Analyzing trace with hash 10805962, now seen corresponding path program 1 times [2024-11-09 23:55:46,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:46,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807577336] [2024-11-09 23:55:46,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:46,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:46,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:46,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807577336] [2024-11-09 23:55:46,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807577336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:46,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:46,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:46,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758634827] [2024-11-09 23:55:46,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:46,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:46,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:46,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:46,655 INFO L87 Difference]: Start difference. First operand 2277 states and 3460 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:46,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:46,821 INFO L93 Difference]: Finished difference Result 11887 states and 18057 transitions. [2024-11-09 23:55:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:46,822 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-09 23:55:46,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:46,862 INFO L225 Difference]: With dead ends: 11887 [2024-11-09 23:55:46,863 INFO L226 Difference]: Without dead ends: 9645 [2024-11-09 23:55:46,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:46,874 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 995 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:46,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 920 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2024-11-09 23:55:47,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 9637. [2024-11-09 23:55:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9637 states, 9636 states have (on average 1.514736405147364) internal successors, (14596), 9636 states have internal predecessors, (14596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9637 states to 9637 states and 14596 transitions. [2024-11-09 23:55:47,140 INFO L78 Accepts]: Start accepts. Automaton has 9637 states and 14596 transitions. Word has length 67 [2024-11-09 23:55:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:47,141 INFO L471 AbstractCegarLoop]: Abstraction has 9637 states and 14596 transitions. [2024-11-09 23:55:47,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9637 states and 14596 transitions. [2024-11-09 23:55:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:55:47,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:47,143 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] [2024-11-09 23:55:47,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:55:47,144 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:47,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:47,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1281510683, now seen corresponding path program 1 times [2024-11-09 23:55:47,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:47,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926493162] [2024-11-09 23:55:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:47,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:47,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926493162] [2024-11-09 23:55:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926493162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:47,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:47,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:47,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574841880] [2024-11-09 23:55:47,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:47,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:47,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:47,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:47,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:47,246 INFO L87 Difference]: Start difference. First operand 9637 states and 14596 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-11-09 23:55:47,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:47,359 INFO L93 Difference]: Finished difference Result 25961 states and 39174 transitions. [2024-11-09 23:55:47,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:47,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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 [2024-11-09 23:55:47,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:47,416 INFO L225 Difference]: With dead ends: 25961 [2024-11-09 23:55:47,416 INFO L226 Difference]: Without dead ends: 16359 [2024-11-09 23:55:47,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:47,436 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 149 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 481 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 [2024-11-09 23:55:47,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 481 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16359 states. [2024-11-09 23:55:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16359 to 16357. [2024-11-09 23:55:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16357 states, 16356 states have (on average 1.4949865492785521) internal successors, (24452), 16356 states have internal predecessors, (24452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16357 states to 16357 states and 24452 transitions. [2024-11-09 23:55:47,877 INFO L78 Accepts]: Start accepts. Automaton has 16357 states and 24452 transitions. Word has length 68 [2024-11-09 23:55:47,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:47,878 INFO L471 AbstractCegarLoop]: Abstraction has 16357 states and 24452 transitions. [2024-11-09 23:55:47,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2024-11-09 23:55:47,878 INFO L276 IsEmpty]: Start isEmpty. Operand 16357 states and 24452 transitions. [2024-11-09 23:55:47,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:55:47,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:47,879 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] [2024-11-09 23:55:47,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:55:47,879 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:47,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1202972440, now seen corresponding path program 1 times [2024-11-09 23:55:47,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:47,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251603361] [2024-11-09 23:55:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:47,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:48,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:48,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251603361] [2024-11-09 23:55:48,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251603361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:48,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:48,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:55:48,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621712089] [2024-11-09 23:55:48,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:48,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:55:48,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:48,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:55:48,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:55:48,315 INFO L87 Difference]: Start difference. First operand 16357 states and 24452 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:48,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:48,408 INFO L93 Difference]: Finished difference Result 17319 states and 25733 transitions. [2024-11-09 23:55:48,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:55:48,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-09 23:55:48,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:48,441 INFO L225 Difference]: With dead ends: 17319 [2024-11-09 23:55:48,441 INFO L226 Difference]: Without dead ends: 17317 [2024-11-09 23:55:48,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:55:48,451 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:48,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 778 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17317 states. [2024-11-09 23:55:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17317 to 17317. [2024-11-09 23:55:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17317 states, 17316 states have (on average 1.4675444675444675) internal successors, (25412), 17316 states have internal predecessors, (25412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17317 states to 17317 states and 25412 transitions. [2024-11-09 23:55:48,802 INFO L78 Accepts]: Start accepts. Automaton has 17317 states and 25412 transitions. Word has length 69 [2024-11-09 23:55:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:48,803 INFO L471 AbstractCegarLoop]: Abstraction has 17317 states and 25412 transitions. [2024-11-09 23:55:48,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:48,804 INFO L276 IsEmpty]: Start isEmpty. Operand 17317 states and 25412 transitions. [2024-11-09 23:55:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:55:48,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:48,805 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] [2024-11-09 23:55:48,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:55:48,805 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:48,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:48,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1538984322, now seen corresponding path program 1 times [2024-11-09 23:55:48,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:48,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270733120] [2024-11-09 23:55:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:48,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270733120] [2024-11-09 23:55:48,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270733120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:48,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:48,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:48,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634998611] [2024-11-09 23:55:48,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:48,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:48,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:48,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:48,925 INFO L87 Difference]: Start difference. First operand 17317 states and 25412 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) [2024-11-09 23:55:49,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:49,059 INFO L93 Difference]: Finished difference Result 42507 states and 62504 transitions. [2024-11-09 23:55:49,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:49,060 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 [2024-11-09 23:55:49,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:49,115 INFO L225 Difference]: With dead ends: 42507 [2024-11-09 23:55:49,115 INFO L226 Difference]: Without dead ends: 25225 [2024-11-09 23:55:49,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:49,146 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 121 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 357 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 [2024-11-09 23:55:49,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 357 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:49,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25225 states. [2024-11-09 23:55:49,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25225 to 25079. [2024-11-09 23:55:49,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25079 states, 25078 states have (on average 1.4631948321237738) internal successors, (36694), 25078 states have internal predecessors, (36694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:49,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25079 states to 25079 states and 36694 transitions. [2024-11-09 23:55:49,750 INFO L78 Accepts]: Start accepts. Automaton has 25079 states and 36694 transitions. Word has length 70 [2024-11-09 23:55:49,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:49,750 INFO L471 AbstractCegarLoop]: Abstraction has 25079 states and 36694 transitions. [2024-11-09 23:55:49,750 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) [2024-11-09 23:55:49,750 INFO L276 IsEmpty]: Start isEmpty. Operand 25079 states and 36694 transitions. [2024-11-09 23:55:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:49,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:49,762 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:49,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:55:49,762 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:49,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:49,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1242296689, now seen corresponding path program 1 times [2024-11-09 23:55:49,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:49,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678972355] [2024-11-09 23:55:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:49,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678972355] [2024-11-09 23:55:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678972355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:49,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:49,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956226016] [2024-11-09 23:55:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:49,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:49,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:49,847 INFO L87 Difference]: Start difference. First operand 25079 states and 36694 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:50,139 INFO L93 Difference]: Finished difference Result 65084 states and 95066 transitions. [2024-11-09 23:55:50,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:50,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-09 23:55:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:50,292 INFO L225 Difference]: With dead ends: 65084 [2024-11-09 23:55:50,292 INFO L226 Difference]: Without dead ends: 43738 [2024-11-09 23:55:50,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:50,335 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 122 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:50,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 496 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:50,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43738 states. [2024-11-09 23:55:51,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43738 to 43736. [2024-11-09 23:55:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43736 states, 43735 states have (on average 1.4474448382302503) internal successors, (63304), 43735 states have internal predecessors, (63304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43736 states to 43736 states and 63304 transitions. [2024-11-09 23:55:51,604 INFO L78 Accepts]: Start accepts. Automaton has 43736 states and 63304 transitions. Word has length 98 [2024-11-09 23:55:51,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:51,605 INFO L471 AbstractCegarLoop]: Abstraction has 43736 states and 63304 transitions. [2024-11-09 23:55:51,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 43736 states and 63304 transitions. [2024-11-09 23:55:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:51,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:51,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:51,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:55:51,632 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:51,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:51,634 INFO L85 PathProgramCache]: Analyzing trace with hash 983302050, now seen corresponding path program 1 times [2024-11-09 23:55:51,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:51,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291653949] [2024-11-09 23:55:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:51,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:52,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:52,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291653949] [2024-11-09 23:55:52,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291653949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:55:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672108013] [2024-11-09 23:55:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:52,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:55:52,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:55:52,226 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) [2024-11-09 23:55:52,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:55:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:52,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 23:55:52,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:55:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:53,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:55:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:54,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672108013] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:55:54,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:55:54,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 23 [2024-11-09 23:55:54,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069469008] [2024-11-09 23:55:54,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:55:54,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 23:55:54,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:54,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 23:55:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:55:54,321 INFO L87 Difference]: Start difference. First operand 43736 states and 63304 transitions. Second operand has 23 states, 23 states have (on average 12.304347826086957) internal successors, (283), 23 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:05,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:05,420 INFO L93 Difference]: Finished difference Result 437197 states and 633896 transitions. [2024-11-09 23:56:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-11-09 23:56:05,421 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.304347826086957) internal successors, (283), 23 states have internal predecessors, (283), 0 states have call successors, (0), 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 [2024-11-09 23:56:05,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:06,446 INFO L225 Difference]: With dead ends: 437197 [2024-11-09 23:56:06,447 INFO L226 Difference]: Without dead ends: 393499 [2024-11-09 23:56:06,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10097 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4244, Invalid=21196, Unknown=0, NotChecked=0, Total=25440 [2024-11-09 23:56:06,785 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 19198 mSDsluCounter, 4825 mSDsCounter, 0 mSdLazyCounter, 4985 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19198 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 5147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 4985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:06,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19198 Valid, 5212 Invalid, 5147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [162 Valid, 4985 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 23:56:07,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393499 states. [2024-11-09 23:56:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393499 to 309118. [2024-11-09 23:56:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309118 states, 309117 states have (on average 1.4242503647486227) internal successors, (440260), 309117 states have internal predecessors, (440260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:12,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309118 states to 309118 states and 440260 transitions. [2024-11-09 23:56:12,767 INFO L78 Accepts]: Start accepts. Automaton has 309118 states and 440260 transitions. Word has length 98 [2024-11-09 23:56:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:12,768 INFO L471 AbstractCegarLoop]: Abstraction has 309118 states and 440260 transitions. [2024-11-09 23:56:12,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.304347826086957) internal successors, (283), 23 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:12,768 INFO L276 IsEmpty]: Start isEmpty. Operand 309118 states and 440260 transitions. [2024-11-09 23:56:12,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 23:56:12,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:12,785 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:56:12,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:56:12,986 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,SelfDestructingSolverStorable10 [2024-11-09 23:56:12,987 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:12,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:12,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1402025152, now seen corresponding path program 1 times [2024-11-09 23:56:12,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:12,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257903854] [2024-11-09 23:56:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:12,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:13,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:13,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257903854] [2024-11-09 23:56:13,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257903854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:13,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:13,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:13,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484124957] [2024-11-09 23:56:13,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:13,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:13,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:13,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:13,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:13,640 INFO L87 Difference]: Start difference. First operand 309118 states and 440260 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:15,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:15,939 INFO L93 Difference]: Finished difference Result 759339 states and 1078824 transitions. [2024-11-09 23:56:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:15,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-09 23:56:15,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:17,622 INFO L225 Difference]: With dead ends: 759339 [2024-11-09 23:56:17,623 INFO L226 Difference]: Without dead ends: 508710 [2024-11-09 23:56:17,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:17,827 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 119 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:17,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 403 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508710 states. [2024-11-09 23:56:24,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508710 to 508708. [2024-11-09 23:56:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508708 states, 508707 states have (on average 1.4095088135213394) internal successors, (717027), 508707 states have internal predecessors, (717027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508708 states to 508708 states and 717027 transitions. [2024-11-09 23:56:27,183 INFO L78 Accepts]: Start accepts. Automaton has 508708 states and 717027 transitions. Word has length 99 [2024-11-09 23:56:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:56:27,183 INFO L471 AbstractCegarLoop]: Abstraction has 508708 states and 717027 transitions. [2024-11-09 23:56:27,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 508708 states and 717027 transitions. [2024-11-09 23:56:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 23:56:27,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:56:27,206 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 23:56:27,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:56:27,207 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:56:27,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:56:27,207 INFO L85 PathProgramCache]: Analyzing trace with hash -452482655, now seen corresponding path program 1 times [2024-11-09 23:56:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:56:27,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184518255] [2024-11-09 23:56:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:56:27,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:56:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:56:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:56:27,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:56:27,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184518255] [2024-11-09 23:56:27,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184518255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:56:27,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:56:27,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:56:27,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149379080] [2024-11-09 23:56:27,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:56:27,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:56:27,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:56:27,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:56:27,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:27,278 INFO L87 Difference]: Start difference. First operand 508708 states and 717027 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:56:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:56:31,534 INFO L93 Difference]: Finished difference Result 1226803 states and 1723240 transitions. [2024-11-09 23:56:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:56:31,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-09 23:56:31,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:33,151 INFO L225 Difference]: With dead ends: 1226803 [2024-11-09 23:56:33,151 INFO L226 Difference]: Without dead ends: 803653 [2024-11-09 23:56:34,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:56:34,426 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 118 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:34,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:56:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803653 states.