./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3fd48462b17ddbaf278fc488df1a3ae435e9f6d18bb30b30a9517aad37d6aece --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:58:59,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:58:59,593 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:58:59,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:58:59,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:58:59,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:58:59,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:58:59,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:58:59,637 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:58:59,639 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:58:59,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:58:59,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:58:59,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:58:59,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:58:59,643 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:58:59,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:58:59,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:58:59,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:58:59,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:58:59,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:58:59,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:58:59,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:58:59,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:58:59,646 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:58:59,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:58:59,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:58:59,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:58:59,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:58:59,648 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:58:59,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:58:59,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:58:59,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:58:59,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:58:59,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:58:59,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:58:59,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:58:59,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:58:59,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:58:59,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:58:59,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:58:59,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:58:59,653 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:58:59,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fd48462b17ddbaf278fc488df1a3ae435e9f6d18bb30b30a9517aad37d6aece [2024-11-09 23:58:59,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:58:59,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:58:59,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:58:59,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:58:59,944 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:58:59,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-09 23:59:01,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:59:01,665 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:59:01,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-09 23:59:01,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82ff7fa3/20a6e0941bb045df98999ca5470bb1c7/FLAG62d41d3a7 [2024-11-09 23:59:02,010 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82ff7fa3/20a6e0941bb045df98999ca5470bb1c7 [2024-11-09 23:59:02,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:59:02,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:59:02,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:59:02,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:59:02,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:59:02,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57e56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02, skipping insertion in model container [2024-11-09 23:59:02,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:59:02,366 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.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6778,6791] [2024-11-09 23:59:02,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:59:02,444 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:59:02,479 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.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6778,6791] [2024-11-09 23:59:02,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:59:02,538 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:59:02,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02 WrapperNode [2024-11-09 23:59:02,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:59:02,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:59:02,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:59:02,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:59:02,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,620 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 574 [2024-11-09 23:59:02,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:59:02,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:59:02,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:59:02,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:59:02,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,663 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 23:59:02,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,676 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:59:02,691 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:59:02,691 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:59:02,691 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:59:02,693 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (1/1) ... [2024-11-09 23:59:02,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:59:02,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:59:02,728 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 23:59:02,735 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 23:59:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:59:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:59:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:59:02,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:59:02,893 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:59:02,896 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:59:03,479 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,480 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,480 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,480 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,480 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,481 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,481 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,481 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,481 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,481 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,482 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,482 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,482 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,482 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,482 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,483 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,483 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,483 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,483 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,483 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,483 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,484 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,484 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,484 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,484 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L154: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:59:03,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L501: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-09 23:59:03,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L172: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:59:03,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L172: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:59:03,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L190: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:59:03,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L190: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:59:03,485 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L456: havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:59:03,486 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L456: havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:59:03,486 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L456: havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node4__m4~2#1;havoc main_~node3__m3~2#1; [2024-11-09 23:59:03,486 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:59:03,486 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:59:03,486 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:59:03,486 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L309: havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L591: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L360: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L360: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L360: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L360: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L360: havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:59:03,487 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:59:03,488 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:59:03,488 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-09 23:59:03,488 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L281: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:59:03,488 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L281: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:59:03,488 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L281: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:59:03,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L281: havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1; [2024-11-09 23:59:03,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L546: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-09 23:59:03,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L381: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:59:03,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L381: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:59:03,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L381: havoc main_~node2__m2~2#1;havoc main_~node1__m1~2#1; [2024-11-09 23:59:03,490 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:59:03,490 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:59:03,520 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-09 23:59:03,520 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:59:03,537 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:59:03,537 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:59:03,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:59:03 BoogieIcfgContainer [2024-11-09 23:59:03,538 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:59:03,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:59:03,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:59:03,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:59:03,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:59:02" (1/3) ... [2024-11-09 23:59:03,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5976fca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:59:03, skipping insertion in model container [2024-11-09 23:59:03,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:59:02" (2/3) ... [2024-11-09 23:59:03,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5976fca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:59:03, skipping insertion in model container [2024-11-09 23:59:03,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:59:03" (3/3) ... [2024-11-09 23:59:03,546 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-11-09 23:59:03,561 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:59:03,562 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:59:03,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:59:03,638 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;@65583a79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:59:03,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:59:03,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 125 states have (on average 1.728) internal successors, (216), 126 states have internal predecessors, (216), 0 states have call successors, (0), 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 23:59:03,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 23:59:03,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:03,652 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 23:59:03,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:03,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:03,658 INFO L85 PathProgramCache]: Analyzing trace with hash 236931827, now seen corresponding path program 1 times [2024-11-09 23:59:03,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:03,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220438275] [2024-11-09 23:59:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:03,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:04,266 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 23:59:04,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:04,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220438275] [2024-11-09 23:59:04,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220438275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:04,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:04,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:04,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276392718] [2024-11-09 23:59:04,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:04,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:59:04,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:04,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:59:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:59:04,306 INFO L87 Difference]: Start difference. First operand has 127 states, 125 states have (on average 1.728) internal successors, (216), 126 states have internal predecessors, (216), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 23:59:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:04,671 INFO L93 Difference]: Finished difference Result 617 states and 970 transitions. [2024-11-09 23:59:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:59:04,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 23:59:04,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:04,686 INFO L225 Difference]: With dead ends: 617 [2024-11-09 23:59:04,686 INFO L226 Difference]: Without dead ends: 535 [2024-11-09 23:59:04,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:59:04,694 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 844 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:04,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1962 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-09 23:59:04,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 191. [2024-11-09 23:59:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 1.436842105263158) internal successors, (273), 190 states have internal predecessors, (273), 0 states have call successors, (0), 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 23:59:04,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 273 transitions. [2024-11-09 23:59:04,763 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 273 transitions. Word has length 62 [2024-11-09 23:59:04,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:04,764 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 273 transitions. [2024-11-09 23:59:04,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 23:59:04,764 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 273 transitions. [2024-11-09 23:59:04,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:59:04,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:04,766 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 23:59:04,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:59:04,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:04,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:04,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1500623560, now seen corresponding path program 1 times [2024-11-09 23:59:04,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:04,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340525879] [2024-11-09 23:59:04,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:04,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:05,060 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 23:59:05,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:05,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340525879] [2024-11-09 23:59:05,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340525879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:05,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:05,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:05,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177887757] [2024-11-09 23:59:05,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:05,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:59:05,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:05,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:59:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:59:05,064 INFO L87 Difference]: Start difference. First operand 191 states and 273 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:05,198 INFO L93 Difference]: Finished difference Result 687 states and 1033 transitions. [2024-11-09 23:59:05,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:59:05,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:05,203 INFO L225 Difference]: With dead ends: 687 [2024-11-09 23:59:05,203 INFO L226 Difference]: Without dead ends: 581 [2024-11-09 23:59:05,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:59:05,209 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 539 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:05,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1146 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:05,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-09 23:59:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 306. [2024-11-09 23:59:05,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.478688524590164) internal successors, (451), 305 states have internal predecessors, (451), 0 states have call successors, (0), 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 23:59:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 451 transitions. [2024-11-09 23:59:05,237 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 451 transitions. Word has length 64 [2024-11-09 23:59:05,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:05,237 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 451 transitions. [2024-11-09 23:59:05,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,238 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 451 transitions. [2024-11-09 23:59:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:59:05,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:05,242 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 23:59:05,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:59:05,243 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:05,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:05,245 INFO L85 PathProgramCache]: Analyzing trace with hash 222136655, now seen corresponding path program 1 times [2024-11-09 23:59:05,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:05,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102166350] [2024-11-09 23:59:05,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:05,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:05,463 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 23:59:05,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:05,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102166350] [2024-11-09 23:59:05,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102166350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:05,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:05,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:05,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156367729] [2024-11-09 23:59:05,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:05,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:59:05,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:05,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:59:05,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:59:05,466 INFO L87 Difference]: Start difference. First operand 306 states and 451 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:05,612 INFO L93 Difference]: Finished difference Result 802 states and 1211 transitions. [2024-11-09 23:59:05,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:59:05,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:05,617 INFO L225 Difference]: With dead ends: 802 [2024-11-09 23:59:05,617 INFO L226 Difference]: Without dead ends: 696 [2024-11-09 23:59:05,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:59:05,621 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 530 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:05,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1097 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-09 23:59:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 473. [2024-11-09 23:59:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.5021186440677967) internal successors, (709), 472 states have internal predecessors, (709), 0 states have call successors, (0), 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 23:59:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 709 transitions. [2024-11-09 23:59:05,650 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 709 transitions. Word has length 64 [2024-11-09 23:59:05,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:05,651 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 709 transitions. [2024-11-09 23:59:05,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,651 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 709 transitions. [2024-11-09 23:59:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:59:05,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:05,653 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 23:59:05,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:59:05,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:05,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1087229240, now seen corresponding path program 1 times [2024-11-09 23:59:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367865965] [2024-11-09 23:59:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:05,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:05,846 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 23:59:05,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:05,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367865965] [2024-11-09 23:59:05,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367865965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:05,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:05,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:05,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184196664] [2024-11-09 23:59:05,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:05,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:59:05,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:59:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:59:05,850 INFO L87 Difference]: Start difference. First operand 473 states and 709 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:05,976 INFO L93 Difference]: Finished difference Result 912 states and 1381 transitions. [2024-11-09 23:59:05,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:59:05,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:05,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:05,979 INFO L225 Difference]: With dead ends: 912 [2024-11-09 23:59:05,980 INFO L226 Difference]: Without dead ends: 806 [2024-11-09 23:59:05,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:59:05,986 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 603 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:05,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 968 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:05,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-09 23:59:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 583. [2024-11-09 23:59:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 1.5103092783505154) internal successors, (879), 582 states have internal predecessors, (879), 0 states have call successors, (0), 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 23:59:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 879 transitions. [2024-11-09 23:59:06,003 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 879 transitions. Word has length 64 [2024-11-09 23:59:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:06,003 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 879 transitions. [2024-11-09 23:59:06,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 879 transitions. [2024-11-09 23:59:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:59:06,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:06,008 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:06,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:59:06,008 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:06,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:06,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1169840497, now seen corresponding path program 1 times [2024-11-09 23:59:06,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:06,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494795065] [2024-11-09 23:59:06,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:06,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:06,156 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 23:59:06,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:06,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494795065] [2024-11-09 23:59:06,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494795065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:06,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:06,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:06,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430685105] [2024-11-09 23:59:06,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:06,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:59:06,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:06,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:59:06,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:59:06,160 INFO L87 Difference]: Start difference. First operand 583 states and 879 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:06,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:06,280 INFO L93 Difference]: Finished difference Result 1017 states and 1543 transitions. [2024-11-09 23:59:06,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:59:06,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:06,285 INFO L225 Difference]: With dead ends: 1017 [2024-11-09 23:59:06,285 INFO L226 Difference]: Without dead ends: 911 [2024-11-09 23:59:06,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:59:06,286 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 673 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:06,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 963 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:06,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2024-11-09 23:59:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 688. [2024-11-09 23:59:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.51528384279476) internal successors, (1041), 687 states have internal predecessors, (1041), 0 states have call successors, (0), 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 23:59:06,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1041 transitions. [2024-11-09 23:59:06,303 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1041 transitions. Word has length 64 [2024-11-09 23:59:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:06,303 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1041 transitions. [2024-11-09 23:59:06,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 23:59:06,304 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1041 transitions. [2024-11-09 23:59:06,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 23:59:06,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:06,305 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 23:59:06,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:59:06,305 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:06,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1069060545, now seen corresponding path program 1 times [2024-11-09 23:59:06,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:06,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504912107] [2024-11-09 23:59:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:06,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:06,565 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 23:59:06,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:06,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504912107] [2024-11-09 23:59:06,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504912107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:06,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:06,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:06,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370799342] [2024-11-09 23:59:06,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:06,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:59:06,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:06,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:59:06,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:59:06,569 INFO L87 Difference]: Start difference. First operand 688 states and 1041 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 23:59:06,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:06,695 INFO L93 Difference]: Finished difference Result 1264 states and 1929 transitions. [2024-11-09 23:59:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:59:06,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 23:59:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:06,699 INFO L225 Difference]: With dead ends: 1264 [2024-11-09 23:59:06,700 INFO L226 Difference]: Without dead ends: 690 [2024-11-09 23:59:06,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:59:06,702 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 206 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:06,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 536 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-09 23:59:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 688. [2024-11-09 23:59:06,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.5065502183406114) internal successors, (1035), 687 states have internal predecessors, (1035), 0 states have call successors, (0), 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 23:59:06,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1035 transitions. [2024-11-09 23:59:06,719 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1035 transitions. Word has length 65 [2024-11-09 23:59:06,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:06,719 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1035 transitions. [2024-11-09 23:59:06,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 23:59:06,720 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1035 transitions. [2024-11-09 23:59:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 23:59:06,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:06,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:06,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:59:06,721 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:06,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:06,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1173687892, now seen corresponding path program 1 times [2024-11-09 23:59:06,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:06,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973565260] [2024-11-09 23:59:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:06,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:06,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973565260] [2024-11-09 23:59:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973565260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:06,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:06,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:59:06,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587548576] [2024-11-09 23:59:06,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:06,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:59:06,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:06,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:59:06,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:59:06,830 INFO L87 Difference]: Start difference. First operand 688 states and 1035 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:59:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:06,946 INFO L93 Difference]: Finished difference Result 1346 states and 2039 transitions. [2024-11-09 23:59:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:59:06,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-09 23:59:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:06,949 INFO L225 Difference]: With dead ends: 1346 [2024-11-09 23:59:06,949 INFO L226 Difference]: Without dead ends: 688 [2024-11-09 23:59:06,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:06,955 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 460 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:06,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 92 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-09 23:59:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2024-11-09 23:59:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4890829694323144) internal successors, (1023), 687 states have internal predecessors, (1023), 0 states have call successors, (0), 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 23:59:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1023 transitions. [2024-11-09 23:59:06,972 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1023 transitions. Word has length 66 [2024-11-09 23:59:06,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:06,973 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1023 transitions. [2024-11-09 23:59:06,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:59:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1023 transitions. [2024-11-09 23:59:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:59:06,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:06,977 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 23:59:06,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:59:06,978 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:06,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash 936905945, now seen corresponding path program 1 times [2024-11-09 23:59:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315052176] [2024-11-09 23:59:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:06,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:07,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:07,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315052176] [2024-11-09 23:59:07,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315052176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:07,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:07,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:59:07,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841363860] [2024-11-09 23:59:07,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:07,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:59:07,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:07,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:59:07,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:59:07,116 INFO L87 Difference]: Start difference. First operand 688 states and 1023 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 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 23:59:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:07,226 INFO L93 Difference]: Finished difference Result 1334 states and 2001 transitions. [2024-11-09 23:59:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:59:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 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 23:59:07,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:07,230 INFO L225 Difference]: With dead ends: 1334 [2024-11-09 23:59:07,230 INFO L226 Difference]: Without dead ends: 688 [2024-11-09 23:59:07,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:07,232 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 420 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:07,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 116 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-09 23:59:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2024-11-09 23:59:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4716157205240175) internal successors, (1011), 687 states have internal predecessors, (1011), 0 states have call successors, (0), 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 23:59:07,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1011 transitions. [2024-11-09 23:59:07,247 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1011 transitions. Word has length 67 [2024-11-09 23:59:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:07,247 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1011 transitions. [2024-11-09 23:59:07,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 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 23:59:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1011 transitions. [2024-11-09 23:59:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 23:59:07,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:07,249 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 23:59:07,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:59:07,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:07,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:07,249 INFO L85 PathProgramCache]: Analyzing trace with hash -956233105, now seen corresponding path program 1 times [2024-11-09 23:59:07,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:07,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615318254] [2024-11-09 23:59:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:07,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:07,349 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 23:59:07,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:07,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615318254] [2024-11-09 23:59:07,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615318254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:07,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:07,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:59:07,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996715677] [2024-11-09 23:59:07,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:07,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:59:07,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:59:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:59:07,351 INFO L87 Difference]: Start difference. First operand 688 states and 1011 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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 23:59:07,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:07,451 INFO L93 Difference]: Finished difference Result 1342 states and 1987 transitions. [2024-11-09 23:59:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:59:07,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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 23:59:07,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:07,454 INFO L225 Difference]: With dead ends: 1342 [2024-11-09 23:59:07,455 INFO L226 Difference]: Without dead ends: 688 [2024-11-09 23:59:07,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:07,456 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 436 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:07,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 100 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:07,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-09 23:59:07,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2024-11-09 23:59:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4541484716157205) internal successors, (999), 687 states have internal predecessors, (999), 0 states have call successors, (0), 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 23:59:07,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 999 transitions. [2024-11-09 23:59:07,469 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 999 transitions. Word has length 68 [2024-11-09 23:59:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:07,470 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 999 transitions. [2024-11-09 23:59:07,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 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 23:59:07,470 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 999 transitions. [2024-11-09 23:59:07,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:59:07,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:07,471 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 23:59:07,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:59:07,471 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:07,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:07,472 INFO L85 PathProgramCache]: Analyzing trace with hash -568248808, now seen corresponding path program 1 times [2024-11-09 23:59:07,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:07,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761642162] [2024-11-09 23:59:07,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:07,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:07,571 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 23:59:07,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:07,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761642162] [2024-11-09 23:59:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761642162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:07,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:07,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:59:07,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603701151] [2024-11-09 23:59:07,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:07,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:59:07,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:07,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:59:07,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:59:07,573 INFO L87 Difference]: Start difference. First operand 688 states and 999 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 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 23:59:07,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:07,675 INFO L93 Difference]: Finished difference Result 1338 states and 1959 transitions. [2024-11-09 23:59:07,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:59:07,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 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 23:59:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:07,678 INFO L225 Difference]: With dead ends: 1338 [2024-11-09 23:59:07,678 INFO L226 Difference]: Without dead ends: 688 [2024-11-09 23:59:07,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:07,679 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 418 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:07,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 108 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:07,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-09 23:59:07,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2024-11-09 23:59:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4366812227074235) internal successors, (987), 687 states have internal predecessors, (987), 0 states have call successors, (0), 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 23:59:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 987 transitions. [2024-11-09 23:59:07,705 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 987 transitions. Word has length 69 [2024-11-09 23:59:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:07,705 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 987 transitions. [2024-11-09 23:59:07,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 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 23:59:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 987 transitions. [2024-11-09 23:59:07,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:59:07,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:07,707 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, 1, 1, 1] [2024-11-09 23:59:07,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:59:07,707 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:07,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash -858751061, now seen corresponding path program 1 times [2024-11-09 23:59:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:07,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187252758] [2024-11-09 23:59:07,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:07,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:08,030 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 23:59:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187252758] [2024-11-09 23:59:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187252758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:08,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:59:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878588766] [2024-11-09 23:59:08,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:08,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:59:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:08,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:59:08,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:59:08,032 INFO L87 Difference]: Start difference. First operand 688 states and 987 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 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 23:59:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:08,456 INFO L93 Difference]: Finished difference Result 1888 states and 2725 transitions. [2024-11-09 23:59:08,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:59:08,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 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 23:59:08,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:08,461 INFO L225 Difference]: With dead ends: 1888 [2024-11-09 23:59:08,461 INFO L226 Difference]: Without dead ends: 1309 [2024-11-09 23:59:08,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-09 23:59:08,463 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 418 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:08,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 419 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:08,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-11-09 23:59:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 688. [2024-11-09 23:59:08,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4294032023289664) internal successors, (982), 687 states have internal predecessors, (982), 0 states have call successors, (0), 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 23:59:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 982 transitions. [2024-11-09 23:59:08,481 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 982 transitions. Word has length 70 [2024-11-09 23:59:08,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:08,481 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 982 transitions. [2024-11-09 23:59:08,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 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 23:59:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 982 transitions. [2024-11-09 23:59:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:59:08,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:08,483 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 23:59:08,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:59:08,483 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:08,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:08,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2044239083, now seen corresponding path program 1 times [2024-11-09 23:59:08,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:08,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938195861] [2024-11-09 23:59:08,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:08,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:08,845 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 23:59:08,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:08,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938195861] [2024-11-09 23:59:08,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938195861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:08,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:08,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:59:08,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845273351] [2024-11-09 23:59:08,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:08,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:59:08,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:08,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:59:08,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:59:08,847 INFO L87 Difference]: Start difference. First operand 688 states and 982 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 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 23:59:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:09,315 INFO L93 Difference]: Finished difference Result 1933 states and 2784 transitions. [2024-11-09 23:59:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:59:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 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 23:59:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:09,320 INFO L225 Difference]: With dead ends: 1933 [2024-11-09 23:59:09,320 INFO L226 Difference]: Without dead ends: 1324 [2024-11-09 23:59:09,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-09 23:59:09,322 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 747 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:09,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 528 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:59:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-09 23:59:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 688. [2024-11-09 23:59:09,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4264919941775838) internal successors, (980), 687 states have internal predecessors, (980), 0 states have call successors, (0), 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 23:59:09,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 980 transitions. [2024-11-09 23:59:09,341 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 980 transitions. Word has length 70 [2024-11-09 23:59:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:09,341 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 980 transitions. [2024-11-09 23:59:09,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 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 23:59:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 980 transitions. [2024-11-09 23:59:09,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:59:09,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:09,342 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 23:59:09,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:59:09,343 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:09,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash -240570558, now seen corresponding path program 1 times [2024-11-09 23:59:09,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:09,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066506259] [2024-11-09 23:59:09,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:09,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:09,629 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 23:59:09,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:09,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066506259] [2024-11-09 23:59:09,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066506259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:09,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:09,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 23:59:09,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672227796] [2024-11-09 23:59:09,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:09,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:59:09,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:09,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:59:09,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:59:09,632 INFO L87 Difference]: Start difference. First operand 688 states and 980 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 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 23:59:09,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:09,925 INFO L93 Difference]: Finished difference Result 1881 states and 2715 transitions. [2024-11-09 23:59:09,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:59:09,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 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 23:59:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:09,929 INFO L225 Difference]: With dead ends: 1881 [2024-11-09 23:59:09,930 INFO L226 Difference]: Without dead ends: 1267 [2024-11-09 23:59:09,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:59:09,931 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 558 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:09,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 415 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:09,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-09 23:59:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 688. [2024-11-09 23:59:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4250363901018923) internal successors, (979), 687 states have internal predecessors, (979), 0 states have call successors, (0), 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 23:59:09,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 979 transitions. [2024-11-09 23:59:09,950 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 979 transitions. Word has length 70 [2024-11-09 23:59:09,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:09,950 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 979 transitions. [2024-11-09 23:59:09,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 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 23:59:09,951 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 979 transitions. [2024-11-09 23:59:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 23:59:09,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:09,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:09,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:59:09,952 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:09,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:09,952 INFO L85 PathProgramCache]: Analyzing trace with hash -982763752, now seen corresponding path program 1 times [2024-11-09 23:59:09,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:09,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609956292] [2024-11-09 23:59:09,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:09,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:10,309 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 23:59:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609956292] [2024-11-09 23:59:10,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609956292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:10,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:10,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:59:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951538364] [2024-11-09 23:59:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:10,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 23:59:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 23:59:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:59:10,311 INFO L87 Difference]: Start difference. First operand 688 states and 979 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:59:10,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:10,841 INFO L93 Difference]: Finished difference Result 1918 states and 2757 transitions. [2024-11-09 23:59:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:59:10,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-09 23:59:10,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:10,846 INFO L225 Difference]: With dead ends: 1918 [2024-11-09 23:59:10,846 INFO L226 Difference]: Without dead ends: 1319 [2024-11-09 23:59:10,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-09 23:59:10,848 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 628 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:10,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 666 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:59:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-11-09 23:59:10,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 688. [2024-11-09 23:59:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4192139737991267) internal successors, (975), 687 states have internal predecessors, (975), 0 states have call successors, (0), 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 23:59:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 975 transitions. [2024-11-09 23:59:10,868 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 975 transitions. Word has length 71 [2024-11-09 23:59:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:10,868 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 975 transitions. [2024-11-09 23:59:10,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:59:10,868 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 975 transitions. [2024-11-09 23:59:10,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 23:59:10,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:10,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:10,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:59:10,871 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:10,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:10,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1474405052, now seen corresponding path program 1 times [2024-11-09 23:59:10,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:10,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468913656] [2024-11-09 23:59:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:10,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:11,597 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 23:59:11,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:11,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468913656] [2024-11-09 23:59:11,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468913656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:11,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:11,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 23:59:11,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054057083] [2024-11-09 23:59:11,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:11,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 23:59:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 23:59:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:59:11,599 INFO L87 Difference]: Start difference. First operand 688 states and 975 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:59:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:12,322 INFO L93 Difference]: Finished difference Result 1497 states and 2151 transitions. [2024-11-09 23:59:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 23:59:12,323 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 23:59:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:12,327 INFO L225 Difference]: With dead ends: 1497 [2024-11-09 23:59:12,327 INFO L226 Difference]: Without dead ends: 1285 [2024-11-09 23:59:12,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-09 23:59:12,329 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 812 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:12,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 935 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:12,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2024-11-09 23:59:12,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 687. [2024-11-09 23:59:12,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 1.412536443148688) internal successors, (969), 686 states have internal predecessors, (969), 0 states have call successors, (0), 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 23:59:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 969 transitions. [2024-11-09 23:59:12,345 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 969 transitions. Word has length 72 [2024-11-09 23:59:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:12,345 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 969 transitions. [2024-11-09 23:59:12,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:59:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 969 transitions. [2024-11-09 23:59:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 23:59:12,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:12,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:12,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:59:12,346 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:12,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:12,347 INFO L85 PathProgramCache]: Analyzing trace with hash 25503908, now seen corresponding path program 1 times [2024-11-09 23:59:12,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:12,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739937417] [2024-11-09 23:59:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:12,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:13,033 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 23:59:13,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:13,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739937417] [2024-11-09 23:59:13,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739937417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:13,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:13,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 23:59:13,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860627363] [2024-11-09 23:59:13,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:13,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 23:59:13,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:13,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 23:59:13,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:59:13,039 INFO L87 Difference]: Start difference. First operand 687 states and 969 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:59:13,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:13,665 INFO L93 Difference]: Finished difference Result 1499 states and 2147 transitions. [2024-11-09 23:59:13,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 23:59:13,666 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 23:59:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:13,670 INFO L225 Difference]: With dead ends: 1499 [2024-11-09 23:59:13,670 INFO L226 Difference]: Without dead ends: 1267 [2024-11-09 23:59:13,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-09 23:59:13,672 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 828 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:13,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1025 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-09 23:59:13,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 671. [2024-11-09 23:59:13,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.4119402985074627) internal successors, (946), 670 states have internal predecessors, (946), 0 states have call successors, (0), 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 23:59:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 946 transitions. [2024-11-09 23:59:13,688 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 946 transitions. Word has length 72 [2024-11-09 23:59:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:13,688 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 946 transitions. [2024-11-09 23:59:13,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:59:13,688 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 946 transitions. [2024-11-09 23:59:13,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 23:59:13,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:13,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:13,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:59:13,690 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:13,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:13,690 INFO L85 PathProgramCache]: Analyzing trace with hash -732735860, now seen corresponding path program 1 times [2024-11-09 23:59:13,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:13,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363105305] [2024-11-09 23:59:13,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:13,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:14,257 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 23:59:14,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:14,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363105305] [2024-11-09 23:59:14,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363105305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:14,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:14,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 23:59:14,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039044560] [2024-11-09 23:59:14,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:14,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 23:59:14,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:14,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 23:59:14,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:59:14,259 INFO L87 Difference]: Start difference. First operand 671 states and 946 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:59:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:14,973 INFO L93 Difference]: Finished difference Result 1477 states and 2117 transitions. [2024-11-09 23:59:14,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 23:59:14,974 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 23:59:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:14,978 INFO L225 Difference]: With dead ends: 1477 [2024-11-09 23:59:14,978 INFO L226 Difference]: Without dead ends: 1255 [2024-11-09 23:59:14,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-09 23:59:14,980 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 554 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:14,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1590 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:59:14,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-09 23:59:14,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 659. [2024-11-09 23:59:14,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.4133738601823709) internal successors, (930), 658 states have internal predecessors, (930), 0 states have call successors, (0), 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 23:59:15,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 930 transitions. [2024-11-09 23:59:15,002 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 930 transitions. Word has length 72 [2024-11-09 23:59:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:15,002 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 930 transitions. [2024-11-09 23:59:15,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 23:59:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 930 transitions. [2024-11-09 23:59:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 23:59:15,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:15,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:15,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:59:15,004 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:15,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:15,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1661769531, now seen corresponding path program 1 times [2024-11-09 23:59:15,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:15,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520125007] [2024-11-09 23:59:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:15,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:15,541 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 23:59:15,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:15,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520125007] [2024-11-09 23:59:15,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520125007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:15,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:15,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:59:15,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700825872] [2024-11-09 23:59:15,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:15,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:59:15,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:15,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:59:15,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:59:15,545 INFO L87 Difference]: Start difference. First operand 659 states and 930 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 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 23:59:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:16,165 INFO L93 Difference]: Finished difference Result 2609 states and 3768 transitions. [2024-11-09 23:59:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:59:16,166 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-09 23:59:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:16,174 INFO L225 Difference]: With dead ends: 2609 [2024-11-09 23:59:16,174 INFO L226 Difference]: Without dead ends: 2383 [2024-11-09 23:59:16,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-09 23:59:16,176 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 756 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:16,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1662 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 23:59:16,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2024-11-09 23:59:16,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 643. [2024-11-09 23:59:16,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 1.4174454828660437) internal successors, (910), 642 states have internal predecessors, (910), 0 states have call successors, (0), 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 23:59:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 910 transitions. [2024-11-09 23:59:16,197 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 910 transitions. Word has length 74 [2024-11-09 23:59:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:16,198 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 910 transitions. [2024-11-09 23:59:16,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 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 23:59:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 910 transitions. [2024-11-09 23:59:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 23:59:16,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:16,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:16,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:59:16,199 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:16,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash 673560979, now seen corresponding path program 1 times [2024-11-09 23:59:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:16,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447398016] [2024-11-09 23:59:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:16,245 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 23:59:16,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447398016] [2024-11-09 23:59:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447398016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:16,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:16,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:59:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888940827] [2024-11-09 23:59:16,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:16,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:59:16,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:16,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:59:16,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:59:16,248 INFO L87 Difference]: Start difference. First operand 643 states and 910 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 23:59:16,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:16,271 INFO L93 Difference]: Finished difference Result 1710 states and 2455 transitions. [2024-11-09 23:59:16,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:59:16,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-09 23:59:16,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:16,275 INFO L225 Difference]: With dead ends: 1710 [2024-11-09 23:59:16,275 INFO L226 Difference]: Without dead ends: 1136 [2024-11-09 23:59:16,276 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 23:59:16,277 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 65 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:16,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 338 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:59:16,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-09 23:59:16,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1134. [2024-11-09 23:59:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 1133 states have (on average 1.4077669902912622) internal successors, (1595), 1133 states have internal predecessors, (1595), 0 states have call successors, (0), 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 23:59:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1595 transitions. [2024-11-09 23:59:16,297 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1595 transitions. Word has length 75 [2024-11-09 23:59:16,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:16,297 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1595 transitions. [2024-11-09 23:59:16,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 23:59:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1595 transitions. [2024-11-09 23:59:16,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 23:59:16,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:16,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:16,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:59:16,298 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:16,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash 579713092, now seen corresponding path program 1 times [2024-11-09 23:59:16,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:16,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138708173] [2024-11-09 23:59:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:16,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:16,410 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 23:59:16,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138708173] [2024-11-09 23:59:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138708173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:16,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:16,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:59:16,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888303365] [2024-11-09 23:59:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:16,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:59:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:16,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:59:16,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:59:16,413 INFO L87 Difference]: Start difference. First operand 1134 states and 1595 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 23:59:16,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:16,442 INFO L93 Difference]: Finished difference Result 2612 states and 3710 transitions. [2024-11-09 23:59:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:59:16,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-09 23:59:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:16,447 INFO L225 Difference]: With dead ends: 2612 [2024-11-09 23:59:16,447 INFO L226 Difference]: Without dead ends: 1547 [2024-11-09 23:59:16,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:59:16,450 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 73 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:16,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 356 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:59:16,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-09 23:59:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1545. [2024-11-09 23:59:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.407383419689119) internal successors, (2173), 1544 states have internal predecessors, (2173), 0 states have call successors, (0), 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 23:59:16,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2173 transitions. [2024-11-09 23:59:16,480 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2173 transitions. Word has length 76 [2024-11-09 23:59:16,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:16,480 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 2173 transitions. [2024-11-09 23:59:16,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 23:59:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2173 transitions. [2024-11-09 23:59:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 23:59:16,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:16,481 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:16,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:59:16,482 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:16,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:16,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1185943865, now seen corresponding path program 1 times [2024-11-09 23:59:16,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:16,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660382635] [2024-11-09 23:59:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:16,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:16,708 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 23:59:16,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:16,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660382635] [2024-11-09 23:59:16,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660382635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:16,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:16,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:59:16,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450889723] [2024-11-09 23:59:16,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:16,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:59:16,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:16,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:59:16,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:59:16,711 INFO L87 Difference]: Start difference. First operand 1545 states and 2173 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 23:59:16,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:16,741 INFO L93 Difference]: Finished difference Result 1567 states and 2199 transitions. [2024-11-09 23:59:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:59:16,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-09 23:59:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:16,746 INFO L225 Difference]: With dead ends: 1567 [2024-11-09 23:59:16,747 INFO L226 Difference]: Without dead ends: 1565 [2024-11-09 23:59:16,747 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 23:59:16,748 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:16,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 581 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:59:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-09 23:59:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2024-11-09 23:59:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 1.395140664961637) internal successors, (2182), 1564 states have internal predecessors, (2182), 0 states have call successors, (0), 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 23:59:16,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2182 transitions. [2024-11-09 23:59:16,773 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2182 transitions. Word has length 76 [2024-11-09 23:59:16,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:16,774 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2182 transitions. [2024-11-09 23:59:16,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 23:59:16,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2182 transitions. [2024-11-09 23:59:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 23:59:16,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:16,775 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:16,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:59:16,776 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:16,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:16,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1808105000, now seen corresponding path program 1 times [2024-11-09 23:59:16,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:16,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859953680] [2024-11-09 23:59:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:16,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:16,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:16,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859953680] [2024-11-09 23:59:16,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859953680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:16,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:16,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:16,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488426854] [2024-11-09 23:59:16,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:16,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:59:16,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:16,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:59:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:16,906 INFO L87 Difference]: Start difference. First operand 1565 states and 2182 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 23:59:17,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:17,113 INFO L93 Difference]: Finished difference Result 4197 states and 5878 transitions. [2024-11-09 23:59:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 23:59:17,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-09 23:59:17,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:17,131 INFO L225 Difference]: With dead ends: 4197 [2024-11-09 23:59:17,131 INFO L226 Difference]: Without dead ends: 3112 [2024-11-09 23:59:17,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:59:17,134 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 698 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:17,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 251 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:59:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2024-11-09 23:59:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 1994. [2024-11-09 23:59:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1993 states have (on average 1.3582538886101354) internal successors, (2707), 1993 states have internal predecessors, (2707), 0 states have call successors, (0), 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 23:59:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2707 transitions. [2024-11-09 23:59:17,177 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2707 transitions. Word has length 101 [2024-11-09 23:59:17,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:17,178 INFO L471 AbstractCegarLoop]: Abstraction has 1994 states and 2707 transitions. [2024-11-09 23:59:17,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 23:59:17,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2707 transitions. [2024-11-09 23:59:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 23:59:17,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:17,179 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:17,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 23:59:17,180 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:17,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:17,180 INFO L85 PathProgramCache]: Analyzing trace with hash -550593464, now seen corresponding path program 1 times [2024-11-09 23:59:17,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:17,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147241153] [2024-11-09 23:59:17,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:17,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:17,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:17,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:17,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147241153] [2024-11-09 23:59:17,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147241153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:17,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:17,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:17,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621903480] [2024-11-09 23:59:17,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:17,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:59:17,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:17,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:59:17,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:17,346 INFO L87 Difference]: Start difference. First operand 1994 states and 2707 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 23:59:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:17,613 INFO L93 Difference]: Finished difference Result 6156 states and 8532 transitions. [2024-11-09 23:59:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:59:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-09 23:59:17,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:17,629 INFO L225 Difference]: With dead ends: 6156 [2024-11-09 23:59:17,629 INFO L226 Difference]: Without dead ends: 4231 [2024-11-09 23:59:17,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:59:17,634 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 893 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:17,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 281 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2024-11-09 23:59:17,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 3169. [2024-11-09 23:59:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 3168 states have (on average 1.3620580808080809) internal successors, (4315), 3168 states have internal predecessors, (4315), 0 states have call successors, (0), 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 23:59:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 4315 transitions. [2024-11-09 23:59:17,688 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 4315 transitions. Word has length 101 [2024-11-09 23:59:17,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:17,691 INFO L471 AbstractCegarLoop]: Abstraction has 3169 states and 4315 transitions. [2024-11-09 23:59:17,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 23:59:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 4315 transitions. [2024-11-09 23:59:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 23:59:17,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:17,693 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:17,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 23:59:17,693 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:17,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:17,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1889887496, now seen corresponding path program 1 times [2024-11-09 23:59:17,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:17,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141838671] [2024-11-09 23:59:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:17,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:17,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:17,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141838671] [2024-11-09 23:59:17,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141838671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:17,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:17,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923215786] [2024-11-09 23:59:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:17,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:59:17,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:17,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:59:17,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:17,834 INFO L87 Difference]: Start difference. First operand 3169 states and 4315 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 23:59:18,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:18,094 INFO L93 Difference]: Finished difference Result 11091 states and 15353 transitions. [2024-11-09 23:59:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:59:18,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-09 23:59:18,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:18,109 INFO L225 Difference]: With dead ends: 11091 [2024-11-09 23:59:18,109 INFO L226 Difference]: Without dead ends: 8012 [2024-11-09 23:59:18,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:59:18,117 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 808 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:18,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 279 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:18,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2024-11-09 23:59:18,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 6666. [2024-11-09 23:59:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6665 states have (on average 1.368192048012003) internal successors, (9119), 6665 states have internal predecessors, (9119), 0 states have call successors, (0), 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 23:59:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 9119 transitions. [2024-11-09 23:59:18,268 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 9119 transitions. Word has length 101 [2024-11-09 23:59:18,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:18,268 INFO L471 AbstractCegarLoop]: Abstraction has 6666 states and 9119 transitions. [2024-11-09 23:59:18,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 23:59:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 9119 transitions. [2024-11-09 23:59:18,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 23:59:18,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:18,270 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:18,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 23:59:18,273 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:18,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:18,274 INFO L85 PathProgramCache]: Analyzing trace with hash 547235695, now seen corresponding path program 1 times [2024-11-09 23:59:18,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:18,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617863856] [2024-11-09 23:59:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:18,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:18,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:18,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617863856] [2024-11-09 23:59:18,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617863856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:18,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:18,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:59:18,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286220615] [2024-11-09 23:59:18,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:18,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:59:18,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:18,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:59:18,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:59:18,409 INFO L87 Difference]: Start difference. First operand 6666 states and 9119 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 23:59:18,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:18,683 INFO L93 Difference]: Finished difference Result 21498 states and 29681 transitions. [2024-11-09 23:59:18,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:59:18,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-09 23:59:18,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:18,712 INFO L225 Difference]: With dead ends: 21498 [2024-11-09 23:59:18,712 INFO L226 Difference]: Without dead ends: 14922 [2024-11-09 23:59:18,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:59:18,725 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 723 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:18,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 277 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:59:18,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14922 states. [2024-11-09 23:59:18,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14922 to 14080. [2024-11-09 23:59:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14080 states, 14079 states have (on average 1.37190141345266) internal successors, (19315), 14079 states have internal predecessors, (19315), 0 states have call successors, (0), 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 23:59:18,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14080 states to 14080 states and 19315 transitions. [2024-11-09 23:59:18,999 INFO L78 Accepts]: Start accepts. Automaton has 14080 states and 19315 transitions. Word has length 102 [2024-11-09 23:59:19,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:19,000 INFO L471 AbstractCegarLoop]: Abstraction has 14080 states and 19315 transitions. [2024-11-09 23:59:19,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 23:59:19,000 INFO L276 IsEmpty]: Start isEmpty. Operand 14080 states and 19315 transitions. [2024-11-09 23:59:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:59:19,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:19,002 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:19,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 23:59:19,002 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:19,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1433205511, now seen corresponding path program 1 times [2024-11-09 23:59:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982228547] [2024-11-09 23:59:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:19,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:19,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:19,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982228547] [2024-11-09 23:59:19,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982228547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:19,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:19,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:59:19,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540833141] [2024-11-09 23:59:19,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:19,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:59:19,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:59:19,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:59:19,148 INFO L87 Difference]: Start difference. First operand 14080 states and 19315 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 23:59:19,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:19,221 INFO L93 Difference]: Finished difference Result 25120 states and 34453 transitions. [2024-11-09 23:59:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:59:19,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-09 23:59:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:19,244 INFO L225 Difference]: With dead ends: 25120 [2024-11-09 23:59:19,244 INFO L226 Difference]: Without dead ends: 13554 [2024-11-09 23:59:19,257 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 23:59:19,258 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 65 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:19,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 314 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:59:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13554 states. [2024-11-09 23:59:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13554 to 12564. [2024-11-09 23:59:19,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12564 states, 12563 states have (on average 1.3676669585290138) internal successors, (17182), 12563 states have internal predecessors, (17182), 0 states have call successors, (0), 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 23:59:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12564 states to 12564 states and 17182 transitions. [2024-11-09 23:59:19,414 INFO L78 Accepts]: Start accepts. Automaton has 12564 states and 17182 transitions. Word has length 103 [2024-11-09 23:59:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:19,414 INFO L471 AbstractCegarLoop]: Abstraction has 12564 states and 17182 transitions. [2024-11-09 23:59:19,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 23:59:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 12564 states and 17182 transitions. [2024-11-09 23:59:19,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 23:59:19,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:19,418 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:19,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 23:59:19,420 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:19,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:19,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1897411565, now seen corresponding path program 1 times [2024-11-09 23:59:19,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668268752] [2024-11-09 23:59:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:19,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:59:19,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:19,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668268752] [2024-11-09 23:59:19,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668268752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:19,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:19,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:59:19,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372801275] [2024-11-09 23:59:19,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:19,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:59:19,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:59:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:59:19,619 INFO L87 Difference]: Start difference. First operand 12564 states and 17182 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 23:59:19,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:19,683 INFO L93 Difference]: Finished difference Result 24032 states and 32756 transitions. [2024-11-09 23:59:19,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:59:19,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 130 [2024-11-09 23:59:19,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:19,703 INFO L225 Difference]: With dead ends: 24032 [2024-11-09 23:59:19,703 INFO L226 Difference]: Without dead ends: 11558 [2024-11-09 23:59:19,716 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 23:59:19,717 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 51 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:19,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 310 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:59:19,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2024-11-09 23:59:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 8816. [2024-11-09 23:59:19,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8816 states, 8815 states have (on average 1.3407827566647759) internal successors, (11819), 8815 states have internal predecessors, (11819), 0 states have call successors, (0), 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 23:59:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8816 states to 8816 states and 11819 transitions. [2024-11-09 23:59:19,836 INFO L78 Accepts]: Start accepts. Automaton has 8816 states and 11819 transitions. Word has length 130 [2024-11-09 23:59:19,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:19,838 INFO L471 AbstractCegarLoop]: Abstraction has 8816 states and 11819 transitions. [2024-11-09 23:59:19,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 23:59:19,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8816 states and 11819 transitions. [2024-11-09 23:59:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 23:59:19,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:19,840 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:19,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 23:59:19,841 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:19,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:19,841 INFO L85 PathProgramCache]: Analyzing trace with hash -557795491, now seen corresponding path program 1 times [2024-11-09 23:59:19,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:19,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496180075] [2024-11-09 23:59:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:19,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 23:59:19,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:19,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496180075] [2024-11-09 23:59:19,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496180075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:19,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:19,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:59:19,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473464883] [2024-11-09 23:59:19,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:19,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:59:19,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:59:19,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:59:19,977 INFO L87 Difference]: Start difference. First operand 8816 states and 11819 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 23:59:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:20,031 INFO L93 Difference]: Finished difference Result 19438 states and 25999 transitions. [2024-11-09 23:59:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:59:20,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 130 [2024-11-09 23:59:20,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:20,049 INFO L225 Difference]: With dead ends: 19438 [2024-11-09 23:59:20,049 INFO L226 Difference]: Without dead ends: 10709 [2024-11-09 23:59:20,059 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 23:59:20,060 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 58 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:20,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 309 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:59:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10709 states. [2024-11-09 23:59:20,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10709 to 10269. [2024-11-09 23:59:20,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10269 states, 10268 states have (on average 1.3262563303467083) internal successors, (13618), 10268 states have internal predecessors, (13618), 0 states have call successors, (0), 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 23:59:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10269 states to 10269 states and 13618 transitions. [2024-11-09 23:59:20,214 INFO L78 Accepts]: Start accepts. Automaton has 10269 states and 13618 transitions. Word has length 130 [2024-11-09 23:59:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:20,215 INFO L471 AbstractCegarLoop]: Abstraction has 10269 states and 13618 transitions. [2024-11-09 23:59:20,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 23:59:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 10269 states and 13618 transitions. [2024-11-09 23:59:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 23:59:20,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:20,217 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:59:20,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 23:59:20,218 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:20,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1686198372, now seen corresponding path program 1 times [2024-11-09 23:59:20,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:20,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220168176] [2024-11-09 23:59:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 23:59:20,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:20,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220168176] [2024-11-09 23:59:20,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220168176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:59:20,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:59:20,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:59:20,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255034331] [2024-11-09 23:59:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:59:20,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:59:20,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:20,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:59:20,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:59:20,346 INFO L87 Difference]: Start difference. First operand 10269 states and 13618 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 23:59:20,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:59:20,415 INFO L93 Difference]: Finished difference Result 26289 states and 34884 transitions. [2024-11-09 23:59:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:59:20,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 131 [2024-11-09 23:59:20,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:59:20,441 INFO L225 Difference]: With dead ends: 26289 [2024-11-09 23:59:20,441 INFO L226 Difference]: Without dead ends: 16101 [2024-11-09 23:59:20,456 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 23:59:20,457 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 42 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:59:20,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 315 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:59:20,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16101 states. [2024-11-09 23:59:20,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16101 to 14923. [2024-11-09 23:59:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14923 states, 14922 states have (on average 1.3181879104677656) internal successors, (19670), 14922 states have internal predecessors, (19670), 0 states have call successors, (0), 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 23:59:20,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14923 states to 14923 states and 19670 transitions. [2024-11-09 23:59:20,700 INFO L78 Accepts]: Start accepts. Automaton has 14923 states and 19670 transitions. Word has length 131 [2024-11-09 23:59:20,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:59:20,701 INFO L471 AbstractCegarLoop]: Abstraction has 14923 states and 19670 transitions. [2024-11-09 23:59:20,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 23:59:20,701 INFO L276 IsEmpty]: Start isEmpty. Operand 14923 states and 19670 transitions. [2024-11-09 23:59:20,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 23:59:20,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:59:20,703 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:20,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 23:59:20,704 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:59:20,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:59:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash -409838144, now seen corresponding path program 1 times [2024-11-09 23:59:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:59:20,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971753002] [2024-11-09 23:59:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:20,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:59:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:21,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:59:21,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971753002] [2024-11-09 23:59:21,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971753002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:59:21,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781143644] [2024-11-09 23:59:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:59:21,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:59:21,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:59:21,376 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 23:59:21,377 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 23:59:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:59:21,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 23:59:21,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:59:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:24,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:59:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:59:28,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781143644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:59:28,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:59:28,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 17] total 42 [2024-11-09 23:59:28,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018796995] [2024-11-09 23:59:28,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:59:28,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-09 23:59:28,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:59:28,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-09 23:59:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1599, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 23:59:28,614 INFO L87 Difference]: Start difference. First operand 14923 states and 19670 transitions. Second operand has 42 states, 42 states have (on average 8.833333333333334) internal successors, (371), 42 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)