./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.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.5.1.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 8c73977f942e89d9992bb22ca052cbbbf488baa4bd312066f1673eed7b40e630 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:54:24,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:54:24,943 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:54:24,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:54:24,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:54:24,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:54:24,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:54:24,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:54:24,986 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:54:24,986 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:54:24,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:54:24,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:54:24,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:54:24,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:54:24,989 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:54:24,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:54:24,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:54:24,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:54:24,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:54:24,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:54:24,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:54:24,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:54:24,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:54:24,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:54:24,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:54:24,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:54:24,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:54:24,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:54:24,998 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:54:24,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:54:25,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:54:25,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:54:25,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:54:25,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:54:25,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:54:25,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:54:25,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:54:25,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:54:25,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:54:25,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:54:25,010 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:54:25,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:54:25,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c73977f942e89d9992bb22ca052cbbbf488baa4bd312066f1673eed7b40e630 [2024-11-09 23:54:25,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:54:25,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:54:25,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:54:25,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:54:25,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:54:25,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:54:26,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:54:27,003 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:54:27,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:54:27,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef12297bb/33b7c5b276744eccbd69986b3a94d18d/FLAGcda3ba73d [2024-11-09 23:54:27,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef12297bb/33b7c5b276744eccbd69986b3a94d18d [2024-11-09 23:54:27,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:54:27,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:54:27,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:54:27,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:54:27,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:54:27,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6548cb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27, skipping insertion in model container [2024-11-09 23:54:27,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:54:27,328 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-11-09 23:54:27,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:54:27,408 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:54:27,444 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-11-09 23:54:27,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:54:27,487 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:54:27,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27 WrapperNode [2024-11-09 23:54:27,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:54:27,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:54:27,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:54:27,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:54:27,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,546 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 573 [2024-11-09 23:54:27,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:54:27,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:54:27,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:54:27,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:54:27,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,562 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,585 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 23:54:27,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:54:27,612 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:54:27,616 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:54:27,616 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:54:27,617 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (1/1) ... [2024-11-09 23:54:27,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:54:27,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:54:27,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:54:27,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:54:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:54:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:54:27,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:54:27,844 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:54:27,848 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:54:28,404 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:28,405 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:28,405 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:28,405 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:28,406 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L631: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:28,406 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L401: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:28,406 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:28,406 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:28,406 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:28,406 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L270: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:28,407 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L751: havoc main_~node1____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:28,407 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L487: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:28,407 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:28,407 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,407 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,407 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,408 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,408 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,408 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,408 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,408 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,408 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,409 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,409 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,409 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,409 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,409 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,409 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,411 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,411 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,411 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,411 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,411 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,411 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:28,413 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L573: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:28,413 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 23:54:28,413 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 23:54:28,413 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 23:54:28,413 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L723: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:28,413 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L459: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:28,414 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:28,414 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L545: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:28,446 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-09 23:54:28,447 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:54:28,493 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:54:28,494 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:54:28,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:54:28 BoogieIcfgContainer [2024-11-09 23:54:28,495 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:54:28,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:54:28,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:54:28,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:54:28,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:54:27" (1/3) ... [2024-11-09 23:54:28,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c52d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:54:28, skipping insertion in model container [2024-11-09 23:54:28,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:27" (2/3) ... [2024-11-09 23:54:28,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c52d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:54:28, skipping insertion in model container [2024-11-09 23:54:28,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:54:28" (3/3) ... [2024-11-09 23:54:28,505 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-09 23:54:28,545 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:54:28,546 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:54:28,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:54:28,627 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;@67fe4023, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:54:28,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:54:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 143 states have (on average 1.6573426573426573) internal successors, (237), 144 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:28,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 23:54:28,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:28,647 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 23:54:28,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:28,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:28,654 INFO L85 PathProgramCache]: Analyzing trace with hash -724250090, now seen corresponding path program 1 times [2024-11-09 23:54:28,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:28,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657304356] [2024-11-09 23:54:28,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:28,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:29,168 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 23:54:29,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:29,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657304356] [2024-11-09 23:54:29,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657304356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:29,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:29,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:29,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237903479] [2024-11-09 23:54:29,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:29,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:29,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:29,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:29,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,204 INFO L87 Difference]: Start difference. First operand has 145 states, 143 states have (on average 1.6573426573426573) internal successors, (237), 144 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:29,292 INFO L93 Difference]: Finished difference Result 346 states and 546 transitions. [2024-11-09 23:54:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:29,296 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 23:54:29,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:29,308 INFO L225 Difference]: With dead ends: 346 [2024-11-09 23:54:29,308 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 23:54:29,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,318 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 172 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:29,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 503 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 23:54:29,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2024-11-09 23:54:29,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.4801762114537445) internal successors, (336), 227 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 336 transitions. [2024-11-09 23:54:29,366 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 336 transitions. Word has length 61 [2024-11-09 23:54:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:29,367 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 336 transitions. [2024-11-09 23:54:29,368 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 23:54:29,368 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 336 transitions. [2024-11-09 23:54:29,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 23:54:29,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:29,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:29,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:54:29,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:29,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:29,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1087762695, now seen corresponding path program 1 times [2024-11-09 23:54:29,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:29,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616843621] [2024-11-09 23:54:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:29,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:29,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:29,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616843621] [2024-11-09 23:54:29,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616843621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:29,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:29,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:29,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915840494] [2024-11-09 23:54:29,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:29,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:29,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:29,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:29,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,529 INFO L87 Difference]: Start difference. First operand 228 states and 336 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:29,574 INFO L93 Difference]: Finished difference Result 580 states and 884 transitions. [2024-11-09 23:54:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:29,574 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 23:54:29,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:29,577 INFO L225 Difference]: With dead ends: 580 [2024-11-09 23:54:29,577 INFO L226 Difference]: Without dead ends: 387 [2024-11-09 23:54:29,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,582 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 142 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:29,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 440 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:29,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-09 23:54:29,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2024-11-09 23:54:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5104166666666667) internal successors, (580), 384 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 580 transitions. [2024-11-09 23:54:29,613 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 580 transitions. Word has length 62 [2024-11-09 23:54:29,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:29,614 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 580 transitions. [2024-11-09 23:54:29,614 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 23:54:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 580 transitions. [2024-11-09 23:54:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 23:54:29,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:29,616 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 23:54:29,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:54:29,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:29,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:29,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1112992208, now seen corresponding path program 1 times [2024-11-09 23:54:29,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:29,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013242304] [2024-11-09 23:54:29,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:29,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:29,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:29,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013242304] [2024-11-09 23:54:29,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013242304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:29,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:29,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:29,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396705264] [2024-11-09 23:54:29,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:29,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:29,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:29,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:29,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,740 INFO L87 Difference]: Start difference. First operand 385 states and 580 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:29,778 INFO L93 Difference]: Finished difference Result 1017 states and 1562 transitions. [2024-11-09 23:54:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:29,779 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 23:54:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:29,783 INFO L225 Difference]: With dead ends: 1017 [2024-11-09 23:54:29,784 INFO L226 Difference]: Without dead ends: 667 [2024-11-09 23:54:29,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,788 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 137 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:29,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 425 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:29,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-09 23:54:29,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 665. [2024-11-09 23:54:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.5240963855421688) internal successors, (1012), 664 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1012 transitions. [2024-11-09 23:54:29,820 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1012 transitions. Word has length 63 [2024-11-09 23:54:29,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:29,820 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1012 transitions. [2024-11-09 23:54:29,821 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 23:54:29,821 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1012 transitions. [2024-11-09 23:54:29,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:54:29,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:29,823 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 23:54:29,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:54:29,823 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:29,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:29,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1214623535, now seen corresponding path program 1 times [2024-11-09 23:54:29,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:29,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466818595] [2024-11-09 23:54:29,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:29,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466818595] [2024-11-09 23:54:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466818595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:29,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:29,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475669161] [2024-11-09 23:54:29,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:29,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:29,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,937 INFO L87 Difference]: Start difference. First operand 665 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:29,969 INFO L93 Difference]: Finished difference Result 1789 states and 2750 transitions. [2024-11-09 23:54:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-09 23:54:29,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:29,975 INFO L225 Difference]: With dead ends: 1789 [2024-11-09 23:54:29,976 INFO L226 Difference]: Without dead ends: 1159 [2024-11-09 23:54:29,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:29,981 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 132 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:29,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 410 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:29,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-09 23:54:30,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2024-11-09 23:54:30,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.5259515570934257) internal successors, (1764), 1156 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1764 transitions. [2024-11-09 23:54:30,048 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1764 transitions. Word has length 64 [2024-11-09 23:54:30,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:30,049 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1764 transitions. [2024-11-09 23:54:30,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1764 transitions. [2024-11-09 23:54:30,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 23:54:30,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:30,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:30,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:54:30,051 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:30,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1975437366, now seen corresponding path program 1 times [2024-11-09 23:54:30,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:30,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448577610] [2024-11-09 23:54:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:30,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:30,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448577610] [2024-11-09 23:54:30,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448577610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:30,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:30,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:30,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300436339] [2024-11-09 23:54:30,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:30,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:30,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:30,339 INFO L87 Difference]: Start difference. First operand 1157 states and 1764 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:30,580 INFO L93 Difference]: Finished difference Result 7889 states and 12138 transitions. [2024-11-09 23:54:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 23:54:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:30,609 INFO L225 Difference]: With dead ends: 7889 [2024-11-09 23:54:30,609 INFO L226 Difference]: Without dead ends: 6767 [2024-11-09 23:54:30,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:54:30,618 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1537 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:30,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 2535 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6767 states. [2024-11-09 23:54:30,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6767 to 2277. [2024-11-09 23:54:30,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.5202108963093146) internal successors, (3460), 2276 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 3460 transitions. [2024-11-09 23:54:30,703 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 3460 transitions. Word has length 65 [2024-11-09 23:54:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:30,704 INFO L471 AbstractCegarLoop]: Abstraction has 2277 states and 3460 transitions. [2024-11-09 23:54:30,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 3460 transitions. [2024-11-09 23:54:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:54:30,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:30,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:30,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:54:30,708 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:30,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:30,709 INFO L85 PathProgramCache]: Analyzing trace with hash 10805962, now seen corresponding path program 1 times [2024-11-09 23:54:30,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:30,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366475324] [2024-11-09 23:54:30,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:30,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:31,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:31,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366475324] [2024-11-09 23:54:31,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366475324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:31,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:31,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:31,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518002773] [2024-11-09 23:54:31,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:31,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:31,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:31,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:31,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:31,038 INFO L87 Difference]: Start difference. First operand 2277 states and 3460 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:31,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:31,193 INFO L93 Difference]: Finished difference Result 11887 states and 18057 transitions. [2024-11-09 23:54:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:31,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-09 23:54:31,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:31,230 INFO L225 Difference]: With dead ends: 11887 [2024-11-09 23:54:31,230 INFO L226 Difference]: Without dead ends: 9645 [2024-11-09 23:54:31,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:31,241 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 995 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:31,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 920 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2024-11-09 23:54:31,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 9637. [2024-11-09 23:54:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9637 states, 9636 states have (on average 1.514736405147364) internal successors, (14596), 9636 states have internal predecessors, (14596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9637 states to 9637 states and 14596 transitions. [2024-11-09 23:54:31,442 INFO L78 Accepts]: Start accepts. Automaton has 9637 states and 14596 transitions. Word has length 67 [2024-11-09 23:54:31,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:31,442 INFO L471 AbstractCegarLoop]: Abstraction has 9637 states and 14596 transitions. [2024-11-09 23:54:31,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:31,443 INFO L276 IsEmpty]: Start isEmpty. Operand 9637 states and 14596 transitions. [2024-11-09 23:54:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:54:31,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:31,444 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 23:54:31,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:54:31,445 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:31,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:31,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1281510683, now seen corresponding path program 1 times [2024-11-09 23:54:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970159130] [2024-11-09 23:54:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:31,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:31,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:31,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970159130] [2024-11-09 23:54:31,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970159130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:31,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:31,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:31,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728293128] [2024-11-09 23:54:31,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:31,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:31,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:31,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:31,568 INFO L87 Difference]: Start difference. First operand 9637 states and 14596 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:31,699 INFO L93 Difference]: Finished difference Result 25961 states and 39174 transitions. [2024-11-09 23:54:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:31,700 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 23:54:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:31,751 INFO L225 Difference]: With dead ends: 25961 [2024-11-09 23:54:31,751 INFO L226 Difference]: Without dead ends: 16359 [2024-11-09 23:54:31,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:31,775 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 149 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:31,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 481 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16359 states. [2024-11-09 23:54:32,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16359 to 16357. [2024-11-09 23:54:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16357 states, 16356 states have (on average 1.4949865492785521) internal successors, (24452), 16356 states have internal predecessors, (24452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16357 states to 16357 states and 24452 transitions. [2024-11-09 23:54:32,183 INFO L78 Accepts]: Start accepts. Automaton has 16357 states and 24452 transitions. Word has length 68 [2024-11-09 23:54:32,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:32,183 INFO L471 AbstractCegarLoop]: Abstraction has 16357 states and 24452 transitions. [2024-11-09 23:54:32,183 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 23:54:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 16357 states and 24452 transitions. [2024-11-09 23:54:32,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:54:32,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:32,186 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 23:54:32,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:54:32,187 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:32,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:32,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1202972440, now seen corresponding path program 1 times [2024-11-09 23:54:32,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:32,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218728894] [2024-11-09 23:54:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:32,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:32,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:32,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218728894] [2024-11-09 23:54:32,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218728894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:32,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:32,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:54:32,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086367457] [2024-11-09 23:54:32,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:32,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:32,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:32,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:32,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:32,613 INFO L87 Difference]: Start difference. First operand 16357 states and 24452 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:32,704 INFO L93 Difference]: Finished difference Result 17319 states and 25733 transitions. [2024-11-09 23:54:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:54:32,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-09 23:54:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:32,743 INFO L225 Difference]: With dead ends: 17319 [2024-11-09 23:54:32,743 INFO L226 Difference]: Without dead ends: 17317 [2024-11-09 23:54:32,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:32,754 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:32,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 778 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:32,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17317 states. [2024-11-09 23:54:33,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17317 to 17317. [2024-11-09 23:54:33,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17317 states, 17316 states have (on average 1.4675444675444675) internal successors, (25412), 17316 states have internal predecessors, (25412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17317 states to 17317 states and 25412 transitions. [2024-11-09 23:54:33,107 INFO L78 Accepts]: Start accepts. Automaton has 17317 states and 25412 transitions. Word has length 69 [2024-11-09 23:54:33,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:33,107 INFO L471 AbstractCegarLoop]: Abstraction has 17317 states and 25412 transitions. [2024-11-09 23:54:33,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:33,108 INFO L276 IsEmpty]: Start isEmpty. Operand 17317 states and 25412 transitions. [2024-11-09 23:54:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:54:33,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:33,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:33,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:54:33,111 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:33,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1538984322, now seen corresponding path program 1 times [2024-11-09 23:54:33,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:33,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509395059] [2024-11-09 23:54:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:33,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:33,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:33,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509395059] [2024-11-09 23:54:33,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509395059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:33,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:33,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:33,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822907251] [2024-11-09 23:54:33,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:33,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:33,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:33,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:33,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:33,208 INFO L87 Difference]: Start difference. First operand 17317 states and 25412 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:33,468 INFO L93 Difference]: Finished difference Result 42507 states and 62504 transitions. [2024-11-09 23:54:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-09 23:54:33,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:33,568 INFO L225 Difference]: With dead ends: 42507 [2024-11-09 23:54:33,568 INFO L226 Difference]: Without dead ends: 25225 [2024-11-09 23:54:33,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:33,599 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 121 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:33,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 357 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:33,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25225 states. [2024-11-09 23:54:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25225 to 25079. [2024-11-09 23:54:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25079 states, 25078 states have (on average 1.4631948321237738) internal successors, (36694), 25078 states have internal predecessors, (36694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25079 states to 25079 states and 36694 transitions. [2024-11-09 23:54:34,083 INFO L78 Accepts]: Start accepts. Automaton has 25079 states and 36694 transitions. Word has length 70 [2024-11-09 23:54:34,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:34,083 INFO L471 AbstractCegarLoop]: Abstraction has 25079 states and 36694 transitions. [2024-11-09 23:54:34,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:34,084 INFO L276 IsEmpty]: Start isEmpty. Operand 25079 states and 36694 transitions. [2024-11-09 23:54:34,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:54:34,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:34,095 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:34,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:54:34,095 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:34,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1242296689, now seen corresponding path program 1 times [2024-11-09 23:54:34,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:34,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129375685] [2024-11-09 23:54:34,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:34,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:34,192 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 23:54:34,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:34,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129375685] [2024-11-09 23:54:34,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129375685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:34,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:34,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:34,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544939611] [2024-11-09 23:54:34,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:34,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:34,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:34,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:34,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:34,194 INFO L87 Difference]: Start difference. First operand 25079 states and 36694 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:34,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:34,548 INFO L93 Difference]: Finished difference Result 65084 states and 95066 transitions. [2024-11-09 23:54:34,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:34,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-09 23:54:34,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:34,637 INFO L225 Difference]: With dead ends: 65084 [2024-11-09 23:54:34,637 INFO L226 Difference]: Without dead ends: 43738 [2024-11-09 23:54:34,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:34,669 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 122 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:34,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 496 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43738 states. [2024-11-09 23:54:35,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43738 to 43736. [2024-11-09 23:54:35,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43736 states, 43735 states have (on average 1.4474448382302503) internal successors, (63304), 43735 states have internal predecessors, (63304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43736 states to 43736 states and 63304 transitions. [2024-11-09 23:54:35,552 INFO L78 Accepts]: Start accepts. Automaton has 43736 states and 63304 transitions. Word has length 98 [2024-11-09 23:54:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:35,552 INFO L471 AbstractCegarLoop]: Abstraction has 43736 states and 63304 transitions. [2024-11-09 23:54:35,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 43736 states and 63304 transitions. [2024-11-09 23:54:35,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:54:35,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:35,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:35,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:54:35,604 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:35,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:35,604 INFO L85 PathProgramCache]: Analyzing trace with hash 983302050, now seen corresponding path program 1 times [2024-11-09 23:54:35,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:35,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601005248] [2024-11-09 23:54:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:35,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:36,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:36,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601005248] [2024-11-09 23:54:36,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601005248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:54:36,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155262491] [2024-11-09 23:54:36,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:36,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:54:36,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:54:36,232 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 23:54:36,234 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 23:54:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:36,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 23:54:36,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:54:37,380 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 23:54:37,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:54:38,119 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 23:54:38,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155262491] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:54:38,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:54:38,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 23 [2024-11-09 23:54:38,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249019757] [2024-11-09 23:54:38,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:54:38,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 23:54:38,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:38,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 23:54:38,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:54:38,122 INFO L87 Difference]: Start difference. First operand 43736 states and 63304 transitions. Second operand has 23 states, 23 states have (on average 12.304347826086957) internal successors, (283), 23 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:49,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:49,418 INFO L93 Difference]: Finished difference Result 436707 states and 633406 transitions. [2024-11-09 23:54:49,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-11-09 23:54:49,419 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.304347826086957) internal successors, (283), 23 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-09 23:54:49,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:50,091 INFO L225 Difference]: With dead ends: 436707 [2024-11-09 23:54:50,092 INFO L226 Difference]: Without dead ends: 393009 [2024-11-09 23:54:50,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10097 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4244, Invalid=21196, Unknown=0, NotChecked=0, Total=25440 [2024-11-09 23:54:50,224 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 19183 mSDsluCounter, 4824 mSDsCounter, 0 mSdLazyCounter, 4986 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19183 SdHoareTripleChecker+Valid, 5211 SdHoareTripleChecker+Invalid, 5148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 4986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:50,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19183 Valid, 5211 Invalid, 5148 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [162 Valid, 4986 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 23:54:50,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393009 states. [2024-11-09 23:54:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393009 to 308748. [2024-11-09 23:54:56,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308748 states, 308747 states have (on average 1.4247587830812931) internal successors, (439890), 308747 states have internal predecessors, (439890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308748 states to 308748 states and 439890 transitions. [2024-11-09 23:54:56,774 INFO L78 Accepts]: Start accepts. Automaton has 308748 states and 439890 transitions. Word has length 98 [2024-11-09 23:54:56,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:56,774 INFO L471 AbstractCegarLoop]: Abstraction has 308748 states and 439890 transitions. [2024-11-09 23:54:56,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.304347826086957) internal successors, (283), 23 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:54:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 308748 states and 439890 transitions. [2024-11-09 23:54:56,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 23:54:56,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:56,790 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:56,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:54:56,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 23:54:56,991 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:56,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:56,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1402025152, now seen corresponding path program 1 times [2024-11-09 23:54:56,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:56,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720297775] [2024-11-09 23:54:56,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:56,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:57,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:57,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720297775] [2024-11-09 23:54:57,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720297775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:57,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:57,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:57,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751852569] [2024-11-09 23:54:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:57,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:57,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:57,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:57,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:57,087 INFO L87 Difference]: Start difference. First operand 308748 states and 439890 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:00,102 INFO L93 Difference]: Finished difference Result 758459 states and 1077944 transitions. [2024-11-09 23:55:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:00,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-09 23:55:00,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:01,840 INFO L225 Difference]: With dead ends: 758459 [2024-11-09 23:55:01,840 INFO L226 Difference]: Without dead ends: 508118 [2024-11-09 23:55:02,037 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 23:55:02,042 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 119 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:02,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 403 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508118 states. [2024-11-09 23:55:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508118 to 508116. [2024-11-09 23:55:09,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508116 states, 508115 states have (on average 1.4099859283823544) internal successors, (716435), 508115 states have internal predecessors, (716435), 0 states have call successors, (0), 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 23:55:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508116 states to 508116 states and 716435 transitions. [2024-11-09 23:55:11,740 INFO L78 Accepts]: Start accepts. Automaton has 508116 states and 716435 transitions. Word has length 99 [2024-11-09 23:55:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:11,740 INFO L471 AbstractCegarLoop]: Abstraction has 508116 states and 716435 transitions. [2024-11-09 23:55:11,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 508116 states and 716435 transitions. [2024-11-09 23:55:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 23:55:11,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:11,756 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:11,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:55:11,757 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:11,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:11,757 INFO L85 PathProgramCache]: Analyzing trace with hash -452482655, now seen corresponding path program 1 times [2024-11-09 23:55:11,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:11,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827280926] [2024-11-09 23:55:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:11,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:11,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:11,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827280926] [2024-11-09 23:55:11,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827280926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:11,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:11,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:11,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259222190] [2024-11-09 23:55:11,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:11,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:11,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:11,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:11,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:11,829 INFO L87 Difference]: Start difference. First operand 508116 states and 716435 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:16,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:16,202 INFO L93 Difference]: Finished difference Result 1225447 states and 1721884 transitions. [2024-11-09 23:55:16,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:16,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-09 23:55:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:18,615 INFO L225 Difference]: With dead ends: 1225447 [2024-11-09 23:55:18,615 INFO L226 Difference]: Without dead ends: 802729 [2024-11-09 23:55:18,971 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 23:55:18,972 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 118 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:18,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:19,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802729 states.