./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.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.5.2.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 d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:55:16,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:55:16,536 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:55:16,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:55:16,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:55:16,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:55:16,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:55:16,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:55:16,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:55:16,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:55:16,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:55:16,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:55:16,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:55:16,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:55:16,582 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:55:16,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:55:16,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:55:16,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:55:16,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:55:16,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:55:16,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:55:16,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:55:16,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:55:16,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:55:16,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:55:16,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:55:16,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:55:16,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:55:16,587 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:55:16,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:55:16,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:55:16,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:55:16,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:55:16,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:55:16,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:55:16,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:55:16,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:55:16,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:55:16,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:55:16,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:55:16,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:55:16,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:55:16,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc [2024-11-09 23:55:16,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:55:16,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:55:16,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:55:16,835 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:55:16,836 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:55:16,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:55:18,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:55:18,354 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:55:18,354 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:55:18,368 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a95390d/223294a5526f49ef96e9f62735d1b285/FLAG8def0ef2b [2024-11-09 23:55:18,724 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a95390d/223294a5526f49ef96e9f62735d1b285 [2024-11-09 23:55:18,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:55:18,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:55:18,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:55:18,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:55:18,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:55:18,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:55:18" (1/1) ... [2024-11-09 23:55:18,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4386ac66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:18, skipping insertion in model container [2024-11-09 23:55:18,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:55:18" (1/1) ... [2024-11-09 23:55:18,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:55:18,970 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-11-09 23:55:19,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:55:19,026 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:55:19,059 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.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-11-09 23:55:19,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:55:19,144 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:55:19,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19 WrapperNode [2024-11-09 23:55:19,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:55:19,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:55:19,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:55:19,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:55:19,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,188 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 559 [2024-11-09 23:55:19,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:55:19,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:55:19,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:55:19,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:55:19,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,219 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 23:55:19,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,228 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:55:19,245 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:55:19,245 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:55:19,245 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:55:19,245 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (1/1) ... [2024-11-09 23:55:19,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:55:19,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:55:19,278 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 23:55:19,281 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 23:55:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:55:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:55:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:55:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:55:19,408 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:55:19,410 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:55:19,880 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:19,881 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:19,881 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:19,881 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:55:19,881 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L631: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:19,882 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L401: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:19,882 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:19,882 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:19,882 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:19,882 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:55:19,882 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L487: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:19,882 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:19,883 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,883 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,883 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,884 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,884 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,884 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,884 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,885 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,885 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,885 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,885 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,886 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,887 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L573: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:19,888 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 23:55:19,888 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 23:55:19,888 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 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:19,888 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L459: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:19,889 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:55:19,889 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L545: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:55:19,918 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-09 23:55:19,918 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:55:19,934 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:55:19,934 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:55:19,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:55:19 BoogieIcfgContainer [2024-11-09 23:55:19,934 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:55:19,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:55:19,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:55:19,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:55:19,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:55:18" (1/3) ... [2024-11-09 23:55:19,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2976be6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:55:19, skipping insertion in model container [2024-11-09 23:55:19,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:55:19" (2/3) ... [2024-11-09 23:55:19,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2976be6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:55:19, skipping insertion in model container [2024-11-09 23:55:19,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:55:19" (3/3) ... [2024-11-09 23:55:19,941 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:55:19,956 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:55:19,956 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:55:20,014 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:55:20,020 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;@d2b65a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:55:20,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:55:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 138 states have (on average 1.6594202898550725) internal successors, (229), 139 states have internal predecessors, (229), 0 states have call successors, (0), 0 states 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 23:55:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 23:55:20,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:20,038 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:20,038 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:20,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:20,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1205408815, now seen corresponding path program 1 times [2024-11-09 23:55:20,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:20,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302657117] [2024-11-09 23:55:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:20,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:20,502 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 23:55:20,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:20,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302657117] [2024-11-09 23:55:20,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302657117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:20,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:20,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:20,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474288065] [2024-11-09 23:55:20,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:20,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:20,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:20,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:20,528 INFO L87 Difference]: Start difference. First operand has 140 states, 138 states have (on average 1.6594202898550725) internal successors, (229), 139 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:20,594 INFO L93 Difference]: Finished difference Result 331 states and 522 transitions. [2024-11-09 23:55:20,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:20,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-09 23:55:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:20,610 INFO L225 Difference]: With dead ends: 331 [2024-11-09 23:55:20,610 INFO L226 Difference]: Without dead ends: 220 [2024-11-09 23:55:20,614 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 23:55:20,617 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 165 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 487 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 23:55:20,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 487 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:20,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-09 23:55:20,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2024-11-09 23:55:20,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.4746543778801844) internal successors, (320), 217 states have internal predecessors, (320), 0 states have call successors, (0), 0 states 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 23:55:20,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 320 transitions. [2024-11-09 23:55:20,667 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 320 transitions. Word has length 60 [2024-11-09 23:55:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:20,668 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 320 transitions. [2024-11-09 23:55:20,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 320 transitions. [2024-11-09 23:55:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 23:55:20,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:20,670 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 23:55:20,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:55:20,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:20,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:20,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1397878784, now seen corresponding path program 1 times [2024-11-09 23:55:20,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:20,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145937614] [2024-11-09 23:55:20,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:20,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:20,802 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 23:55:20,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:20,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145937614] [2024-11-09 23:55:20,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145937614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:20,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:20,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:20,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796891222] [2024-11-09 23:55:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:20,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:20,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:20,805 INFO L87 Difference]: Start difference. First operand 218 states and 320 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:20,848 INFO L93 Difference]: Finished difference Result 550 states and 836 transitions. [2024-11-09 23:55:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:20,848 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 23:55:20,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:20,852 INFO L225 Difference]: With dead ends: 550 [2024-11-09 23:55:20,852 INFO L226 Difference]: Without dead ends: 367 [2024-11-09 23:55:20,853 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 23:55:20,855 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 135 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 424 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 23:55:20,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 424 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:20,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-09 23:55:20,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2024-11-09 23:55:20,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.5054945054945055) internal successors, (548), 364 states have internal predecessors, (548), 0 states have call successors, (0), 0 states 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 23:55:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 548 transitions. [2024-11-09 23:55:20,875 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 548 transitions. Word has length 61 [2024-11-09 23:55:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:20,875 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 548 transitions. [2024-11-09 23:55:20,875 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 23:55:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 548 transitions. [2024-11-09 23:55:20,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 23:55:20,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:20,877 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 23:55:20,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:55:20,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:20,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2136656375, now seen corresponding path program 1 times [2024-11-09 23:55:20,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:20,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006267763] [2024-11-09 23:55:20,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:20,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:20,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006267763] [2024-11-09 23:55:21,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006267763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:21,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:21,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177279861] [2024-11-09 23:55:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:21,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:21,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:21,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:21,003 INFO L87 Difference]: Start difference. First operand 365 states and 548 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 23:55:21,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:21,034 INFO L93 Difference]: Finished difference Result 957 states and 1466 transitions. [2024-11-09 23:55:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:21,035 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 23:55:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:21,039 INFO L225 Difference]: With dead ends: 957 [2024-11-09 23:55:21,039 INFO L226 Difference]: Without dead ends: 627 [2024-11-09 23:55:21,040 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 23:55:21,043 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 130 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 409 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 23:55:21,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 409 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-09 23:55:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 625. [2024-11-09 23:55:21,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 624 states have (on average 1.5192307692307692) internal successors, (948), 624 states have internal predecessors, (948), 0 states have call successors, (0), 0 states 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 23:55:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 948 transitions. [2024-11-09 23:55:21,079 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 948 transitions. Word has length 62 [2024-11-09 23:55:21,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:21,079 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 948 transitions. [2024-11-09 23:55:21,080 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 23:55:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 948 transitions. [2024-11-09 23:55:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 23:55:21,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:21,081 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 23:55:21,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:55:21,081 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:21,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:21,082 INFO L85 PathProgramCache]: Analyzing trace with hash -454194570, now seen corresponding path program 1 times [2024-11-09 23:55:21,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:21,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240891840] [2024-11-09 23:55:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:21,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:21,168 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 23:55:21,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:21,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240891840] [2024-11-09 23:55:21,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240891840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:21,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:21,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:21,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925252203] [2024-11-09 23:55:21,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:21,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:21,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:21,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:21,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:21,171 INFO L87 Difference]: Start difference. First operand 625 states and 948 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 23:55:21,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:21,190 INFO L93 Difference]: Finished difference Result 1669 states and 2558 transitions. [2024-11-09 23:55:21,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:21,191 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 23:55:21,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:21,194 INFO L225 Difference]: With dead ends: 1669 [2024-11-09 23:55:21,194 INFO L226 Difference]: Without dead ends: 1079 [2024-11-09 23:55:21,196 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 23:55:21,197 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 125 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 394 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 23:55:21,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 394 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:21,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-09 23:55:21,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1077. [2024-11-09 23:55:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1076 states have (on average 1.520446096654275) internal successors, (1636), 1076 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states 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 23:55:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1636 transitions. [2024-11-09 23:55:21,214 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1636 transitions. Word has length 63 [2024-11-09 23:55:21,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:21,215 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1636 transitions. [2024-11-09 23:55:21,216 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 23:55:21,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1636 transitions. [2024-11-09 23:55:21,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:55:21,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:21,219 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 23:55:21,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:55:21,220 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:21,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:21,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2125776227, now seen corresponding path program 1 times [2024-11-09 23:55:21,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:21,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278864232] [2024-11-09 23:55:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:21,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:21,396 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 23:55:21,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278864232] [2024-11-09 23:55:21,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278864232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:21,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:21,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:21,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638012416] [2024-11-09 23:55:21,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:21,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:21,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:21,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:21,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:21,403 INFO L87 Difference]: Start difference. First operand 1077 states and 1636 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 23:55:21,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:21,604 INFO L93 Difference]: Finished difference Result 7329 states and 11242 transitions. [2024-11-09 23:55:21,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:21,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 23:55:21,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:21,627 INFO L225 Difference]: With dead ends: 7329 [2024-11-09 23:55:21,627 INFO L226 Difference]: Without dead ends: 6287 [2024-11-09 23:55:21,631 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 23:55:21,635 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1466 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 2407 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 23:55:21,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 2407 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:21,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6287 states. [2024-11-09 23:55:21,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6287 to 2117. [2024-11-09 23:55:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.5141776937618148) internal successors, (3204), 2116 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states 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 23:55:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3204 transitions. [2024-11-09 23:55:21,709 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3204 transitions. Word has length 64 [2024-11-09 23:55:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:21,709 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 3204 transitions. [2024-11-09 23:55:21,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 23:55:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3204 transitions. [2024-11-09 23:55:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 23:55:21,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:21,713 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] [2024-11-09 23:55:21,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:55:21,713 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:21,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:21,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1502908893, now seen corresponding path program 1 times [2024-11-09 23:55:21,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:21,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557099669] [2024-11-09 23:55:21,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:21,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:21,961 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 23:55:21,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:21,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557099669] [2024-11-09 23:55:21,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557099669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:21,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:21,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:21,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108886842] [2024-11-09 23:55:21,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:21,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:21,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:21,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:21,963 INFO L87 Difference]: Start difference. First operand 2117 states and 3204 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 23:55:22,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:22,124 INFO L93 Difference]: Finished difference Result 11087 states and 16777 transitions. [2024-11-09 23:55:22,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:22,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-09 23:55:22,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:22,154 INFO L225 Difference]: With dead ends: 11087 [2024-11-09 23:55:22,155 INFO L226 Difference]: Without dead ends: 9005 [2024-11-09 23:55:22,158 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 23:55:22,159 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 889 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:22,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 836 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:22,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9005 states. [2024-11-09 23:55:22,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9005 to 8997. [2024-11-09 23:55:22,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8997 states, 8996 states have (on average 1.5086705202312138) internal successors, (13572), 8996 states have internal predecessors, (13572), 0 states have call successors, (0), 0 states 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 23:55:22,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 13572 transitions. [2024-11-09 23:55:22,293 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 13572 transitions. Word has length 66 [2024-11-09 23:55:22,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:22,293 INFO L471 AbstractCegarLoop]: Abstraction has 8997 states and 13572 transitions. [2024-11-09 23:55:22,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 23:55:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 13572 transitions. [2024-11-09 23:55:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:55:22,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:22,294 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 23:55:22,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:55:22,295 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:22,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:22,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1141992537, now seen corresponding path program 1 times [2024-11-09 23:55:22,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:22,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356523531] [2024-11-09 23:55:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:22,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:22,344 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 23:55:22,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:22,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356523531] [2024-11-09 23:55:22,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356523531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:22,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:22,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:22,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592555404] [2024-11-09 23:55:22,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:22,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:22,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:22,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:22,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:22,346 INFO L87 Difference]: Start difference. First operand 8997 states and 13572 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 23:55:22,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:22,441 INFO L93 Difference]: Finished difference Result 24681 states and 37126 transitions. [2024-11-09 23:55:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:22,443 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 23:55:22,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:22,483 INFO L225 Difference]: With dead ends: 24681 [2024-11-09 23:55:22,484 INFO L226 Difference]: Without dead ends: 15719 [2024-11-09 23:55:22,496 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 23:55:22,497 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 141 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 473 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 23:55:22,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 473 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15719 states. [2024-11-09 23:55:22,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15719 to 15717. [2024-11-09 23:55:22,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15717 states, 15716 states have (on average 1.4907101043522524) internal successors, (23428), 15716 states have internal predecessors, (23428), 0 states have call successors, (0), 0 states 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 23:55:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15717 states to 15717 states and 23428 transitions. [2024-11-09 23:55:22,754 INFO L78 Accepts]: Start accepts. Automaton has 15717 states and 23428 transitions. Word has length 68 [2024-11-09 23:55:22,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:22,755 INFO L471 AbstractCegarLoop]: Abstraction has 15717 states and 23428 transitions. [2024-11-09 23:55:22,755 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 23:55:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 15717 states and 23428 transitions. [2024-11-09 23:55:22,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:55:22,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:22,757 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 23:55:22,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:55:22,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:22,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:22,758 INFO L85 PathProgramCache]: Analyzing trace with hash 689389665, now seen corresponding path program 1 times [2024-11-09 23:55:22,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:22,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380508852] [2024-11-09 23:55:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:22,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:23,024 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 23:55:23,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:23,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380508852] [2024-11-09 23:55:23,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380508852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:23,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:23,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:55:23,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678003166] [2024-11-09 23:55:23,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:23,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:55:23,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:23,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:55:23,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:55:23,027 INFO L87 Difference]: Start difference. First operand 15717 states and 23428 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 23:55:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:23,115 INFO L93 Difference]: Finished difference Result 16679 states and 24709 transitions. [2024-11-09 23:55:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:55:23,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 23:55:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:23,141 INFO L225 Difference]: With dead ends: 16679 [2024-11-09 23:55:23,142 INFO L226 Difference]: Without dead ends: 16677 [2024-11-09 23:55:23,148 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 23:55:23,148 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 746 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 23:55:23,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 746 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:23,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16677 states. [2024-11-09 23:55:23,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16677 to 16677. [2024-11-09 23:55:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16677 states, 16676 states have (on average 1.4624610218277765) internal successors, (24388), 16676 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states 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 23:55:23,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16677 states to 16677 states and 24388 transitions. [2024-11-09 23:55:23,391 INFO L78 Accepts]: Start accepts. Automaton has 16677 states and 24388 transitions. Word has length 68 [2024-11-09 23:55:23,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:23,392 INFO L471 AbstractCegarLoop]: Abstraction has 16677 states and 24388 transitions. [2024-11-09 23:55:23,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 23:55:23,392 INFO L276 IsEmpty]: Start isEmpty. Operand 16677 states and 24388 transitions. [2024-11-09 23:55:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:55:23,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:23,394 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 23:55:23,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:55:23,395 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:23,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:23,396 INFO L85 PathProgramCache]: Analyzing trace with hash 72667433, now seen corresponding path program 1 times [2024-11-09 23:55:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249113104] [2024-11-09 23:55:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:23,504 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 23:55:23,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:23,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249113104] [2024-11-09 23:55:23,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249113104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:23,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:23,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:23,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353613271] [2024-11-09 23:55:23,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:23,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:23,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:23,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:23,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:23,507 INFO L87 Difference]: Start difference. First operand 16677 states and 24388 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 23:55:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:23,596 INFO L93 Difference]: Finished difference Result 40587 states and 59432 transitions. [2024-11-09 23:55:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:23,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 23:55:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:23,633 INFO L225 Difference]: With dead ends: 40587 [2024-11-09 23:55:23,634 INFO L226 Difference]: Without dead ends: 23945 [2024-11-09 23:55:23,654 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 23:55:23,656 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 114 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 341 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 23:55:23,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:23,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23945 states. [2024-11-09 23:55:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23945 to 23799. [2024-11-09 23:55:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23799 states, 23798 states have (on average 1.4558366249264645) internal successors, (34646), 23798 states have internal predecessors, (34646), 0 states have call successors, (0), 0 states 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 23:55:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23799 states to 23799 states and 34646 transitions. [2024-11-09 23:55:24,128 INFO L78 Accepts]: Start accepts. Automaton has 23799 states and 34646 transitions. Word has length 69 [2024-11-09 23:55:24,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:24,129 INFO L471 AbstractCegarLoop]: Abstraction has 23799 states and 34646 transitions. [2024-11-09 23:55:24,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 23:55:24,129 INFO L276 IsEmpty]: Start isEmpty. Operand 23799 states and 34646 transitions. [2024-11-09 23:55:24,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 23:55:24,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:24,137 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 23:55:24,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:55:24,137 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:24,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:24,138 INFO L85 PathProgramCache]: Analyzing trace with hash 819629555, now seen corresponding path program 1 times [2024-11-09 23:55:24,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:24,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341333114] [2024-11-09 23:55:24,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:24,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:24,194 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 23:55:24,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341333114] [2024-11-09 23:55:24,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341333114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:24,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:24,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:24,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624094325] [2024-11-09 23:55:24,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:24,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:24,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:24,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:24,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:24,196 INFO L87 Difference]: Start difference. First operand 23799 states and 34646 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:24,411 INFO L93 Difference]: Finished difference Result 59628 states and 86657 transitions. [2024-11-09 23:55:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 23:55:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:24,499 INFO L225 Difference]: With dead ends: 59628 [2024-11-09 23:55:24,500 INFO L226 Difference]: Without dead ends: 39562 [2024-11-09 23:55:24,530 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 23:55:24,530 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 111 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 381 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 23:55:24,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 381 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39562 states. [2024-11-09 23:55:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39562 to 38072. [2024-11-09 23:55:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38072 states, 38071 states have (on average 1.4425415670720496) internal successors, (54919), 38071 states have internal predecessors, (54919), 0 states have call successors, (0), 0 states 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 23:55:25,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38072 states to 38072 states and 54919 transitions. [2024-11-09 23:55:25,212 INFO L78 Accepts]: Start accepts. Automaton has 38072 states and 54919 transitions. Word has length 96 [2024-11-09 23:55:25,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:25,212 INFO L471 AbstractCegarLoop]: Abstraction has 38072 states and 54919 transitions. [2024-11-09 23:55:25,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 38072 states and 54919 transitions. [2024-11-09 23:55:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 23:55:25,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:25,235 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 23:55:25,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:55:25,235 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:25,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:25,236 INFO L85 PathProgramCache]: Analyzing trace with hash -969226764, now seen corresponding path program 1 times [2024-11-09 23:55:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:25,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942240703] [2024-11-09 23:55:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:25,286 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 23:55:25,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:25,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942240703] [2024-11-09 23:55:25,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942240703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:25,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:25,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:25,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751977014] [2024-11-09 23:55:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:25,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:25,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:25,288 INFO L87 Difference]: Start difference. First operand 38072 states and 54919 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:25,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:25,500 INFO L93 Difference]: Finished difference Result 88593 states and 127418 transitions. [2024-11-09 23:55:25,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:25,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 23:55:25,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:25,574 INFO L225 Difference]: With dead ends: 88593 [2024-11-09 23:55:25,574 INFO L226 Difference]: Without dead ends: 59215 [2024-11-09 23:55:25,606 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 23:55:25,607 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 112 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 400 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 23:55:25,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 400 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59215 states. [2024-11-09 23:55:26,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59215 to 57437. [2024-11-09 23:55:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57437 states, 57436 states have (on average 1.4268403092137336) internal successors, (81952), 57436 states have internal predecessors, (81952), 0 states have call successors, (0), 0 states 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 23:55:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57437 states to 57437 states and 81952 transitions. [2024-11-09 23:55:26,457 INFO L78 Accepts]: Start accepts. Automaton has 57437 states and 81952 transitions. Word has length 96 [2024-11-09 23:55:26,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:26,457 INFO L471 AbstractCegarLoop]: Abstraction has 57437 states and 81952 transitions. [2024-11-09 23:55:26,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 57437 states and 81952 transitions. [2024-11-09 23:55:26,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 23:55:26,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:26,476 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 23:55:26,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:55:26,476 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:26,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:26,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1240074739, now seen corresponding path program 1 times [2024-11-09 23:55:26,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:26,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273495407] [2024-11-09 23:55:26,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:26,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:26,537 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 23:55:26,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:26,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273495407] [2024-11-09 23:55:26,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273495407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:26,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:26,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:26,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196968289] [2024-11-09 23:55:26,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:26,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:26,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:26,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:26,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:26,538 INFO L87 Difference]: Start difference. First operand 57437 states and 81952 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:27,040 INFO L93 Difference]: Finished difference Result 118948 states and 169071 transitions. [2024-11-09 23:55:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:27,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 23:55:27,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:27,142 INFO L225 Difference]: With dead ends: 118948 [2024-11-09 23:55:27,142 INFO L226 Difference]: Without dead ends: 80738 [2024-11-09 23:55:27,172 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 23:55:27,173 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 113 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 429 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 23:55:27,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 429 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80738 states. [2024-11-09 23:55:28,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80738 to 77136. [2024-11-09 23:55:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77136 states, 77135 states have (on average 1.410526998120179) internal successors, (108801), 77135 states have internal predecessors, (108801), 0 states have call successors, (0), 0 states 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 23:55:28,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77136 states to 77136 states and 108801 transitions. [2024-11-09 23:55:28,581 INFO L78 Accepts]: Start accepts. Automaton has 77136 states and 108801 transitions. Word has length 96 [2024-11-09 23:55:28,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:28,582 INFO L471 AbstractCegarLoop]: Abstraction has 77136 states and 108801 transitions. [2024-11-09 23:55:28,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:28,582 INFO L276 IsEmpty]: Start isEmpty. Operand 77136 states and 108801 transitions. [2024-11-09 23:55:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 23:55:28,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:28,603 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 23:55:28,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:55:28,603 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:28,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1008807180, now seen corresponding path program 1 times [2024-11-09 23:55:28,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:28,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442254324] [2024-11-09 23:55:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:28,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:28,738 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:55:28,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:28,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442254324] [2024-11-09 23:55:28,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442254324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:28,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:28,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:28,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669694786] [2024-11-09 23:55:28,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:28,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:28,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:28,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:28,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:28,739 INFO L87 Difference]: Start difference. First operand 77136 states and 108801 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 23:55:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:29,485 INFO L93 Difference]: Finished difference Result 200236 states and 284611 transitions. [2024-11-09 23:55:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:29,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 23:55:29,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:29,759 INFO L225 Difference]: With dead ends: 200236 [2024-11-09 23:55:29,759 INFO L226 Difference]: Without dead ends: 181482 [2024-11-09 23:55:29,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:55:29,821 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 1553 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:29,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 1417 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181482 states. [2024-11-09 23:55:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181482 to 95632. [2024-11-09 23:55:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95632 states, 95631 states have (on average 1.4077548075414876) internal successors, (134625), 95631 states have internal predecessors, (134625), 0 states have call successors, (0), 0 states 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 23:55:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95632 states to 95632 states and 134625 transitions. [2024-11-09 23:55:31,796 INFO L78 Accepts]: Start accepts. Automaton has 95632 states and 134625 transitions. Word has length 96 [2024-11-09 23:55:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:31,796 INFO L471 AbstractCegarLoop]: Abstraction has 95632 states and 134625 transitions. [2024-11-09 23:55:31,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 23:55:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 95632 states and 134625 transitions. [2024-11-09 23:55:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 23:55:31,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:31,815 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 23:55:31,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:55:31,816 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:31,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:31,816 INFO L85 PathProgramCache]: Analyzing trace with hash -474061161, now seen corresponding path program 1 times [2024-11-09 23:55:31,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:31,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053761920] [2024-11-09 23:55:31,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:31,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:32,273 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 23:55:32,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:32,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053761920] [2024-11-09 23:55:32,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053761920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:32,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:32,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:32,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781215767] [2024-11-09 23:55:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:32,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:32,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:32,277 INFO L87 Difference]: Start difference. First operand 95632 states and 134625 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 23:55:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:32,872 INFO L93 Difference]: Finished difference Result 227884 states and 323683 transitions. [2024-11-09 23:55:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 23:55:32,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:33,192 INFO L225 Difference]: With dead ends: 227884 [2024-11-09 23:55:33,192 INFO L226 Difference]: Without dead ends: 199850 [2024-11-09 23:55:33,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:55:33,264 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 1387 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:33,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 1508 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:33,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199850 states. [2024-11-09 23:55:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199850 to 123280. [2024-11-09 23:55:35,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123280 states, 123279 states have (on average 1.4074173216849586) internal successors, (173505), 123279 states have internal predecessors, (173505), 0 states have call successors, (0), 0 states 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 23:55:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123280 states to 123280 states and 173505 transitions. [2024-11-09 23:55:36,159 INFO L78 Accepts]: Start accepts. Automaton has 123280 states and 173505 transitions. Word has length 96 [2024-11-09 23:55:36,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:36,159 INFO L471 AbstractCegarLoop]: Abstraction has 123280 states and 173505 transitions. [2024-11-09 23:55:36,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 23:55:36,159 INFO L276 IsEmpty]: Start isEmpty. Operand 123280 states and 173505 transitions. [2024-11-09 23:55:36,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 23:55:36,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:36,185 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 23:55:36,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:55:36,185 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:36,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash 615005428, now seen corresponding path program 1 times [2024-11-09 23:55:36,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:36,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067157684] [2024-11-09 23:55:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:36,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:36,372 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 23:55:36,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:36,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067157684] [2024-11-09 23:55:36,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067157684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:36,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:36,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738079398] [2024-11-09 23:55:36,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:36,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:36,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:36,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:36,374 INFO L87 Difference]: Start difference. First operand 123280 states and 173505 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 23:55:37,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:37,033 INFO L93 Difference]: Finished difference Result 260708 states and 370051 transitions. [2024-11-09 23:55:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:37,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 23:55:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:37,402 INFO L225 Difference]: With dead ends: 260708 [2024-11-09 23:55:37,402 INFO L226 Difference]: Without dead ends: 227434 [2024-11-09 23:55:37,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:55:37,492 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 1402 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:37,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 1551 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:37,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227434 states. [2024-11-09 23:55:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227434 to 151576. [2024-11-09 23:55:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151576 states, 151575 states have (on average 1.40894606630381) internal successors, (213561), 151575 states have internal predecessors, (213561), 0 states have call successors, (0), 0 states 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 23:55:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151576 states to 151576 states and 213561 transitions. [2024-11-09 23:55:40,512 INFO L78 Accepts]: Start accepts. Automaton has 151576 states and 213561 transitions. Word has length 96 [2024-11-09 23:55:40,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:40,513 INFO L471 AbstractCegarLoop]: Abstraction has 151576 states and 213561 transitions. [2024-11-09 23:55:40,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 23:55:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 151576 states and 213561 transitions. [2024-11-09 23:55:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 23:55:40,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:40,534 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 23:55:40,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:55:40,534 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:40,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:40,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2099518313, now seen corresponding path program 1 times [2024-11-09 23:55:40,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:40,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629856819] [2024-11-09 23:55:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:40,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 23:55:40,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:40,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629856819] [2024-11-09 23:55:40,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629856819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:40,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:40,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:40,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138525996] [2024-11-09 23:55:40,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:40,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:40,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:40,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:40,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:40,694 INFO L87 Difference]: Start difference. First operand 151576 states and 213561 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 23:55:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:41,725 INFO L93 Difference]: Finished difference Result 296536 states and 420583 transitions. [2024-11-09 23:55:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 23:55:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:42,173 INFO L225 Difference]: With dead ends: 296536 [2024-11-09 23:55:42,173 INFO L226 Difference]: Without dead ends: 260218 [2024-11-09 23:55:42,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:55:42,281 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 1537 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:42,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 1510 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:43,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260218 states. [2024-11-09 23:55:45,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260218 to 177036. [2024-11-09 23:55:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177036 states, 177035 states have (on average 1.4100771033976331) internal successors, (249633), 177035 states have internal predecessors, (249633), 0 states have call successors, (0), 0 states 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 23:55:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177036 states to 177036 states and 249633 transitions. [2024-11-09 23:55:45,674 INFO L78 Accepts]: Start accepts. Automaton has 177036 states and 249633 transitions. Word has length 96 [2024-11-09 23:55:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:45,675 INFO L471 AbstractCegarLoop]: Abstraction has 177036 states and 249633 transitions. [2024-11-09 23:55:45,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 23:55:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 177036 states and 249633 transitions. [2024-11-09 23:55:45,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 23:55:45,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:45,694 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] [2024-11-09 23:55:45,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:55:45,694 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:45,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:45,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1986226871, now seen corresponding path program 1 times [2024-11-09 23:55:45,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:45,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470478580] [2024-11-09 23:55:45,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:45,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:45,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:45,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470478580] [2024-11-09 23:55:45,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470478580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:55:45,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725049792] [2024-11-09 23:55:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:45,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:55:45,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:55:45,951 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 23:55:45,952 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 23:55:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:46,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 23:55:46,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:55:46,834 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 23:55:46,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:55:47,927 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 23:55:47,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725049792] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:55:47,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:55:47,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 23 [2024-11-09 23:55:47,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837323593] [2024-11-09 23:55:47,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:55:47,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 23:55:47,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:47,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 23:55:47,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:55:47,930 INFO L87 Difference]: Start difference. First operand 177036 states and 249633 transitions. Second operand has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 23 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 23:55:58,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:58,503 INFO L93 Difference]: Finished difference Result 1330811 states and 1869893 transitions. [2024-11-09 23:55:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-11-09 23:55:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 23 states have internal predecessors, (280), 0 states have call successors, (0), 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 97 [2024-11-09 23:55:58,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:56:01,153 INFO L225 Difference]: With dead ends: 1330811 [2024-11-09 23:56:01,154 INFO L226 Difference]: Without dead ends: 1153885 [2024-11-09 23:56:01,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3569, Invalid=17023, Unknown=0, NotChecked=0, Total=20592 [2024-11-09 23:56:01,443 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 11101 mSDsluCounter, 2734 mSDsCounter, 0 mSdLazyCounter, 2738 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11101 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:56:01,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11101 Valid, 2970 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2738 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 23:56:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153885 states.