/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:26:27,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:26:28,002 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:26:28,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:26:28,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:26:28,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:26:28,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:26:28,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:26:28,041 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:26:28,042 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:26:28,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:26:28,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:26:28,043 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:26:28,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:26:28,043 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:26:28,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:26:28,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:26:28,044 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:26:28,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:26:28,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:26:28,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:26:28,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:26:28,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:26:28,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:26:28,045 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:26:28,046 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:26:28,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:26:28,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:26:28,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:26:28,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:26:28,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:26:28,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:26:28,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:26:28,048 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:26:28,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:26:28,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:26:28,048 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:26:28,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:26:28,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:26:28,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:26:28,261 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:26:28,261 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:26:28,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-16 06:26:29,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:26:29,575 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:26:29,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-16 06:26:29,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076566011/7cad488ec98e4cbc8241439a4d9292f1/FLAG2bf67d087 [2023-12-16 06:26:29,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076566011/7cad488ec98e4cbc8241439a4d9292f1 [2023-12-16 06:26:29,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:26:29,605 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:26:29,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:26:29,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:26:29,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:26:29,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:26:29" (1/1) ... [2023-12-16 06:26:29,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4ff632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:29, skipping insertion in model container [2023-12-16 06:26:29,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:26:29" (1/1) ... [2023-12-16 06:26:29,672 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:26:29,963 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2023-12-16 06:26:29,994 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2023-12-16 06:26:30,003 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2023-12-16 06:26:30,011 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2023-12-16 06:26:30,024 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2023-12-16 06:26:30,035 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2023-12-16 06:26:30,043 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2023-12-16 06:26:30,072 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2023-12-16 06:26:30,083 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2023-12-16 06:26:30,091 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2023-12-16 06:26:30,102 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2023-12-16 06:26:30,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:26:30,141 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:26:30,219 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2023-12-16 06:26:30,233 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2023-12-16 06:26:30,238 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2023-12-16 06:26:30,243 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2023-12-16 06:26:30,249 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2023-12-16 06:26:30,254 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2023-12-16 06:26:30,260 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2023-12-16 06:26:30,265 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2023-12-16 06:26:30,270 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2023-12-16 06:26:30,275 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2023-12-16 06:26:30,280 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2023-12-16 06:26:30,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:26:30,307 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:26:30,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30 WrapperNode [2023-12-16 06:26:30,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:26:30,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:26:30,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:26:30,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:26:30,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,391 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2759 [2023-12-16 06:26:30,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:26:30,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:26:30,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:26:30,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:26:30,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,452 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]. [2023-12-16 06:26:30,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:26:30,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:26:30,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:26:30,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:26:30,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (1/1) ... [2023-12-16 06:26:30,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:26:30,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:26:30,598 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) [2023-12-16 06:26:30,668 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 [2023-12-16 06:26:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:26:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:26:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:26:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:26:30,837 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:26:30,839 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:26:31,984 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:26:32,027 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:26:32,028 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:26:32,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:26:32 BoogieIcfgContainer [2023-12-16 06:26:32,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:26:32,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:26:32,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:26:32,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:26:32,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:26:29" (1/3) ... [2023-12-16 06:26:32,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26361a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:26:32, skipping insertion in model container [2023-12-16 06:26:32,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:26:30" (2/3) ... [2023-12-16 06:26:32,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26361a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:26:32, skipping insertion in model container [2023-12-16 06:26:32,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:26:32" (3/3) ... [2023-12-16 06:26:32,035 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-16 06:26:32,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:26:32,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-16 06:26:32,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:26:32,097 INFO L357 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, mHoare=true, 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;@dbb2280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:26:32,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-12-16 06:26:32,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 535 states, 523 states have (on average 1.8336520076481835) internal successors, (959), 534 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 06:26:32,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:32,123 INFO L195 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] [2023-12-16 06:26:32,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:32,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:32,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1216794109, now seen corresponding path program 1 times [2023-12-16 06:26:32,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:32,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825740424] [2023-12-16 06:26:32,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:32,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:32,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:32,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825740424] [2023-12-16 06:26:32,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825740424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:32,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:32,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:32,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244187777] [2023-12-16 06:26:32,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:32,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:32,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:32,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:32,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:32,468 INFO L87 Difference]: Start difference. First operand has 535 states, 523 states have (on average 1.8336520076481835) internal successors, (959), 534 states have internal predecessors, (959), 0 states have call successors, (0), 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 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:32,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:32,896 INFO L93 Difference]: Finished difference Result 735 states and 1283 transitions. [2023-12-16 06:26:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:32,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2023-12-16 06:26:32,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:32,907 INFO L225 Difference]: With dead ends: 735 [2023-12-16 06:26:32,907 INFO L226 Difference]: Without dead ends: 469 [2023-12-16 06:26:32,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:26:32,911 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 2331 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2331 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:32,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2331 Valid, 504 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:32,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-12-16 06:26:32,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2023-12-16 06:26:32,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 458 states have (on average 1.296943231441048) internal successors, (594), 468 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 594 transitions. [2023-12-16 06:26:32,947 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 594 transitions. Word has length 58 [2023-12-16 06:26:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:32,947 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 594 transitions. [2023-12-16 06:26:32,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 594 transitions. [2023-12-16 06:26:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 06:26:32,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:32,949 INFO L195 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] [2023-12-16 06:26:32,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:26:32,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:32,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:32,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1191017074, now seen corresponding path program 1 times [2023-12-16 06:26:32,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:32,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415777765] [2023-12-16 06:26:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:32,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:33,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:33,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415777765] [2023-12-16 06:26:33,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415777765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:33,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:33,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:33,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520830091] [2023-12-16 06:26:33,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:33,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:33,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:33,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:33,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:33,129 INFO L87 Difference]: Start difference. First operand 469 states and 594 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:33,324 INFO L93 Difference]: Finished difference Result 567 states and 716 transitions. [2023-12-16 06:26:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:33,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2023-12-16 06:26:33,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:33,326 INFO L225 Difference]: With dead ends: 567 [2023-12-16 06:26:33,326 INFO L226 Difference]: Without dead ends: 329 [2023-12-16 06:26:33,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:26:33,328 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1181 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:33,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 235 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:33,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-12-16 06:26:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2023-12-16 06:26:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 318 states have (on average 1.29874213836478) internal successors, (413), 328 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 413 transitions. [2023-12-16 06:26:33,336 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 413 transitions. Word has length 58 [2023-12-16 06:26:33,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:33,336 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 413 transitions. [2023-12-16 06:26:33,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,336 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 413 transitions. [2023-12-16 06:26:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 06:26:33,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:33,337 INFO L195 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] [2023-12-16 06:26:33,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:26:33,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:33,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash 53020530, now seen corresponding path program 1 times [2023-12-16 06:26:33,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395816038] [2023-12-16 06:26:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:33,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:33,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395816038] [2023-12-16 06:26:33,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395816038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:33,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:33,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139480261] [2023-12-16 06:26:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:33,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:33,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:33,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:33,430 INFO L87 Difference]: Start difference. First operand 329 states and 413 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:33,662 INFO L93 Difference]: Finished difference Result 609 states and 783 transitions. [2023-12-16 06:26:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2023-12-16 06:26:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:33,664 INFO L225 Difference]: With dead ends: 609 [2023-12-16 06:26:33,664 INFO L226 Difference]: Without dead ends: 428 [2023-12-16 06:26:33,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:26:33,665 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1419 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:33,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 314 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:33,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-12-16 06:26:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 384. [2023-12-16 06:26:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 373 states have (on average 1.3672922252010724) internal successors, (510), 383 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 510 transitions. [2023-12-16 06:26:33,674 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 510 transitions. Word has length 58 [2023-12-16 06:26:33,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:33,674 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 510 transitions. [2023-12-16 06:26:33,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 510 transitions. [2023-12-16 06:26:33,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 06:26:33,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:33,675 INFO L195 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] [2023-12-16 06:26:33,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:26:33,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:33,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:33,676 INFO L85 PathProgramCache]: Analyzing trace with hash 84136005, now seen corresponding path program 1 times [2023-12-16 06:26:33,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:33,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839485645] [2023-12-16 06:26:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:33,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:33,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:33,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839485645] [2023-12-16 06:26:33,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839485645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:33,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:33,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:26:33,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816970751] [2023-12-16 06:26:33,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:33,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:26:33,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:33,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:26:33,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:26:33,748 INFO L87 Difference]: Start difference. First operand 384 states and 510 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:33,872 INFO L93 Difference]: Finished difference Result 566 states and 758 transitions. [2023-12-16 06:26:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:26:33,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-16 06:26:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:33,874 INFO L225 Difference]: With dead ends: 566 [2023-12-16 06:26:33,874 INFO L226 Difference]: Without dead ends: 336 [2023-12-16 06:26:33,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:26:33,875 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 881 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:33,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 191 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:26:33,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-16 06:26:33,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-12-16 06:26:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3753846153846154) internal successors, (447), 335 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 447 transitions. [2023-12-16 06:26:33,881 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 447 transitions. Word has length 59 [2023-12-16 06:26:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:33,881 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 447 transitions. [2023-12-16 06:26:33,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 447 transitions. [2023-12-16 06:26:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 06:26:33,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:33,882 INFO L195 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] [2023-12-16 06:26:33,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:26:33,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:33,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:33,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1322654244, now seen corresponding path program 1 times [2023-12-16 06:26:33,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:33,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456268720] [2023-12-16 06:26:33,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:33,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:34,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:34,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456268720] [2023-12-16 06:26:34,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456268720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:34,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:34,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:34,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018684377] [2023-12-16 06:26:34,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:34,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:34,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:34,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:34,121 INFO L87 Difference]: Start difference. First operand 336 states and 447 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:34,552 INFO L93 Difference]: Finished difference Result 881 states and 1235 transitions. [2023-12-16 06:26:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:34,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-16 06:26:34,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:34,554 INFO L225 Difference]: With dead ends: 881 [2023-12-16 06:26:34,554 INFO L226 Difference]: Without dead ends: 763 [2023-12-16 06:26:34,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-16 06:26:34,555 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 1526 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:34,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 896 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-12-16 06:26:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 336. [2023-12-16 06:26:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3723076923076922) internal successors, (446), 335 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:34,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 446 transitions. [2023-12-16 06:26:34,563 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 446 transitions. Word has length 60 [2023-12-16 06:26:34,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:34,563 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 446 transitions. [2023-12-16 06:26:34,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:34,563 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 446 transitions. [2023-12-16 06:26:34,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 06:26:34,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:34,564 INFO L195 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] [2023-12-16 06:26:34,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:26:34,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:34,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:34,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1579426260, now seen corresponding path program 1 times [2023-12-16 06:26:34,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:34,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567831000] [2023-12-16 06:26:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:34,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:34,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:34,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567831000] [2023-12-16 06:26:34,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567831000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:34,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:34,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:34,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774659447] [2023-12-16 06:26:34,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:34,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:34,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:34,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:34,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:34,721 INFO L87 Difference]: Start difference. First operand 336 states and 446 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:35,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:35,191 INFO L93 Difference]: Finished difference Result 777 states and 1071 transitions. [2023-12-16 06:26:35,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:35,191 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-16 06:26:35,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:35,193 INFO L225 Difference]: With dead ends: 777 [2023-12-16 06:26:35,193 INFO L226 Difference]: Without dead ends: 637 [2023-12-16 06:26:35,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:26:35,194 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1575 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:35,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 869 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:35,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-12-16 06:26:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 336. [2023-12-16 06:26:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3692307692307693) internal successors, (445), 335 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 445 transitions. [2023-12-16 06:26:35,202 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 445 transitions. Word has length 60 [2023-12-16 06:26:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:35,202 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 445 transitions. [2023-12-16 06:26:35,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 445 transitions. [2023-12-16 06:26:35,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 06:26:35,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:35,203 INFO L195 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] [2023-12-16 06:26:35,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:26:35,204 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:35,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:35,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1013492058, now seen corresponding path program 1 times [2023-12-16 06:26:35,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:35,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822550630] [2023-12-16 06:26:35,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:35,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:35,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:35,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822550630] [2023-12-16 06:26:35,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822550630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:35,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:35,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:26:35,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466694772] [2023-12-16 06:26:35,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:35,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:26:35,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:35,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:26:35,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:26:35,629 INFO L87 Difference]: Start difference. First operand 336 states and 445 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:36,153 INFO L93 Difference]: Finished difference Result 772 states and 1069 transitions. [2023-12-16 06:26:36,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:26:36,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-16 06:26:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:36,156 INFO L225 Difference]: With dead ends: 772 [2023-12-16 06:26:36,156 INFO L226 Difference]: Without dead ends: 755 [2023-12-16 06:26:36,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2023-12-16 06:26:36,157 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1064 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:36,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 1260 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:36,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-12-16 06:26:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 336. [2023-12-16 06:26:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.363076923076923) internal successors, (443), 335 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 443 transitions. [2023-12-16 06:26:36,162 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 443 transitions. Word has length 60 [2023-12-16 06:26:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:36,162 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 443 transitions. [2023-12-16 06:26:36,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 443 transitions. [2023-12-16 06:26:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 06:26:36,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:36,163 INFO L195 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] [2023-12-16 06:26:36,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:26:36,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:36,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:36,163 INFO L85 PathProgramCache]: Analyzing trace with hash -699637619, now seen corresponding path program 1 times [2023-12-16 06:26:36,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:36,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810408442] [2023-12-16 06:26:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:36,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:36,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810408442] [2023-12-16 06:26:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810408442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:36,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:36,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:36,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47152336] [2023-12-16 06:26:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:36,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:26:36,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:26:36,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:26:36,341 INFO L87 Difference]: Start difference. First operand 336 states and 443 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:36,636 INFO L93 Difference]: Finished difference Result 686 states and 911 transitions. [2023-12-16 06:26:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 06:26:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-16 06:26:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:36,638 INFO L225 Difference]: With dead ends: 686 [2023-12-16 06:26:36,638 INFO L226 Difference]: Without dead ends: 501 [2023-12-16 06:26:36,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:26:36,639 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1226 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:36,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 622 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-16 06:26:36,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 336. [2023-12-16 06:26:36,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.36) internal successors, (442), 335 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 442 transitions. [2023-12-16 06:26:36,645 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 442 transitions. Word has length 60 [2023-12-16 06:26:36,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:36,645 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 442 transitions. [2023-12-16 06:26:36,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 442 transitions. [2023-12-16 06:26:36,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:36,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:36,645 INFO L195 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] [2023-12-16 06:26:36,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:26:36,646 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:36,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1319054290, now seen corresponding path program 1 times [2023-12-16 06:26:36,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:36,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104185573] [2023-12-16 06:26:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:36,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:36,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:36,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104185573] [2023-12-16 06:26:36,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104185573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:36,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:36,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599925600] [2023-12-16 06:26:36,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:36,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:36,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:36,799 INFO L87 Difference]: Start difference. First operand 336 states and 442 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:37,250 INFO L93 Difference]: Finished difference Result 748 states and 1025 transitions. [2023-12-16 06:26:37,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:37,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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 [2023-12-16 06:26:37,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:37,252 INFO L225 Difference]: With dead ends: 748 [2023-12-16 06:26:37,252 INFO L226 Difference]: Without dead ends: 743 [2023-12-16 06:26:37,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:26:37,253 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 947 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:37,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1006 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:37,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-12-16 06:26:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 336. [2023-12-16 06:26:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.353846153846154) internal successors, (440), 335 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 440 transitions. [2023-12-16 06:26:37,259 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 440 transitions. Word has length 62 [2023-12-16 06:26:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:37,259 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 440 transitions. [2023-12-16 06:26:37,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 440 transitions. [2023-12-16 06:26:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:37,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:37,260 INFO L195 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] [2023-12-16 06:26:37,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:26:37,260 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:37,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:37,272 INFO L85 PathProgramCache]: Analyzing trace with hash -806955644, now seen corresponding path program 1 times [2023-12-16 06:26:37,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:37,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976727992] [2023-12-16 06:26:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:37,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:37,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:37,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976727992] [2023-12-16 06:26:37,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976727992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:37,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:37,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:37,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831113538] [2023-12-16 06:26:37,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:37,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:37,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:37,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:37,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:37,424 INFO L87 Difference]: Start difference. First operand 336 states and 440 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:37,801 INFO L93 Difference]: Finished difference Result 673 states and 928 transitions. [2023-12-16 06:26:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 06:26:37,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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 [2023-12-16 06:26:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:37,803 INFO L225 Difference]: With dead ends: 673 [2023-12-16 06:26:37,803 INFO L226 Difference]: Without dead ends: 503 [2023-12-16 06:26:37,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-16 06:26:37,804 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1324 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:37,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 856 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:37,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-12-16 06:26:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 336. [2023-12-16 06:26:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3476923076923077) internal successors, (438), 335 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:37,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 438 transitions. [2023-12-16 06:26:37,809 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 438 transitions. Word has length 62 [2023-12-16 06:26:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:37,809 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 438 transitions. [2023-12-16 06:26:37,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 438 transitions. [2023-12-16 06:26:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:37,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:37,810 INFO L195 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] [2023-12-16 06:26:37,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:26:37,810 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:37,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:37,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2033918897, now seen corresponding path program 1 times [2023-12-16 06:26:37,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:37,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251618623] [2023-12-16 06:26:37,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:37,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:37,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:37,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251618623] [2023-12-16 06:26:37,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251618623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:37,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:37,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:37,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058814495] [2023-12-16 06:26:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:37,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:37,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:37,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:37,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:37,976 INFO L87 Difference]: Start difference. First operand 336 states and 438 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:38,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:38,484 INFO L93 Difference]: Finished difference Result 886 states and 1231 transitions. [2023-12-16 06:26:38,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:38,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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 [2023-12-16 06:26:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:38,486 INFO L225 Difference]: With dead ends: 886 [2023-12-16 06:26:38,486 INFO L226 Difference]: Without dead ends: 763 [2023-12-16 06:26:38,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:26:38,487 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 908 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:38,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1217 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-12-16 06:26:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 336. [2023-12-16 06:26:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3446153846153845) internal successors, (437), 335 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 437 transitions. [2023-12-16 06:26:38,494 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 437 transitions. Word has length 62 [2023-12-16 06:26:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:38,494 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 437 transitions. [2023-12-16 06:26:38,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 437 transitions. [2023-12-16 06:26:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:38,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:38,495 INFO L195 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] [2023-12-16 06:26:38,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:26:38,495 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:38,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:38,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1443459928, now seen corresponding path program 1 times [2023-12-16 06:26:38,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:38,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988077275] [2023-12-16 06:26:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:38,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:38,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:38,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988077275] [2023-12-16 06:26:38,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988077275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:38,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:38,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:38,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419191279] [2023-12-16 06:26:38,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:38,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:38,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:38,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:38,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:38,666 INFO L87 Difference]: Start difference. First operand 336 states and 437 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:39,136 INFO L93 Difference]: Finished difference Result 854 states and 1181 transitions. [2023-12-16 06:26:39,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:39,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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 [2023-12-16 06:26:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:39,138 INFO L225 Difference]: With dead ends: 854 [2023-12-16 06:26:39,138 INFO L226 Difference]: Without dead ends: 743 [2023-12-16 06:26:39,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-16 06:26:39,139 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1312 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:39,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1057 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-12-16 06:26:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 336. [2023-12-16 06:26:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3415384615384616) internal successors, (436), 335 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 436 transitions. [2023-12-16 06:26:39,144 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 436 transitions. Word has length 62 [2023-12-16 06:26:39,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:39,145 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 436 transitions. [2023-12-16 06:26:39,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 436 transitions. [2023-12-16 06:26:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:39,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:39,145 INFO L195 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] [2023-12-16 06:26:39,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:26:39,145 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:39,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:39,146 INFO L85 PathProgramCache]: Analyzing trace with hash 823720425, now seen corresponding path program 1 times [2023-12-16 06:26:39,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:39,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109870962] [2023-12-16 06:26:39,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:39,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:39,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:39,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109870962] [2023-12-16 06:26:39,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109870962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:39,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:39,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:26:39,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384237609] [2023-12-16 06:26:39,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:39,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 06:26:39,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:39,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 06:26:39,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:26:39,421 INFO L87 Difference]: Start difference. First operand 336 states and 436 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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) [2023-12-16 06:26:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:40,346 INFO L93 Difference]: Finished difference Result 1313 states and 1847 transitions. [2023-12-16 06:26:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-16 06:26:40,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 [2023-12-16 06:26:40,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:40,349 INFO L225 Difference]: With dead ends: 1313 [2023-12-16 06:26:40,349 INFO L226 Difference]: Without dead ends: 1308 [2023-12-16 06:26:40,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2023-12-16 06:26:40,350 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 3001 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3001 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:40,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3001 Valid, 1267 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:26:40,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2023-12-16 06:26:40,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 340. [2023-12-16 06:26:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 329 states have (on average 1.337386018237082) internal successors, (440), 339 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 440 transitions. [2023-12-16 06:26:40,358 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 440 transitions. Word has length 62 [2023-12-16 06:26:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:40,358 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 440 transitions. [2023-12-16 06:26:40,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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) [2023-12-16 06:26:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 440 transitions. [2023-12-16 06:26:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:26:40,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:40,359 INFO L195 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] [2023-12-16 06:26:40,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:26:40,359 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:40,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2020699465, now seen corresponding path program 1 times [2023-12-16 06:26:40,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:40,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709684709] [2023-12-16 06:26:40,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:40,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:40,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:40,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709684709] [2023-12-16 06:26:40,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709684709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:40,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:40,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:40,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911052049] [2023-12-16 06:26:40,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:40,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:40,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:40,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:40,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:40,490 INFO L87 Difference]: Start difference. First operand 340 states and 440 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:40,927 INFO L93 Difference]: Finished difference Result 851 states and 1176 transitions. [2023-12-16 06:26:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:40,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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 [2023-12-16 06:26:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:40,929 INFO L225 Difference]: With dead ends: 851 [2023-12-16 06:26:40,929 INFO L226 Difference]: Without dead ends: 743 [2023-12-16 06:26:40,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:26:40,930 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1348 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:40,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1013 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:40,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-12-16 06:26:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 340. [2023-12-16 06:26:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 329 states have (on average 1.3343465045592706) internal successors, (439), 339 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 439 transitions. [2023-12-16 06:26:40,935 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 439 transitions. Word has length 62 [2023-12-16 06:26:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:40,936 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 439 transitions. [2023-12-16 06:26:40,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 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) [2023-12-16 06:26:40,936 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 439 transitions. [2023-12-16 06:26:40,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:26:40,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:40,936 INFO L195 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] [2023-12-16 06:26:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:26:40,936 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:40,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2069006374, now seen corresponding path program 1 times [2023-12-16 06:26:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:40,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519095158] [2023-12-16 06:26:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:40,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:41,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:41,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:41,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519095158] [2023-12-16 06:26:41,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519095158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:41,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:41,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:41,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340033834] [2023-12-16 06:26:41,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:41,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:41,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:41,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:41,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:41,070 INFO L87 Difference]: Start difference. First operand 340 states and 439 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:41,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:41,544 INFO L93 Difference]: Finished difference Result 748 states and 1017 transitions. [2023-12-16 06:26:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:26:41,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-16 06:26:41,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:41,546 INFO L225 Difference]: With dead ends: 748 [2023-12-16 06:26:41,546 INFO L226 Difference]: Without dead ends: 743 [2023-12-16 06:26:41,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:26:41,547 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1229 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:41,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 1173 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:41,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-12-16 06:26:41,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 336. [2023-12-16 06:26:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3353846153846154) internal successors, (434), 335 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 434 transitions. [2023-12-16 06:26:41,552 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 434 transitions. Word has length 63 [2023-12-16 06:26:41,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:41,552 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 434 transitions. [2023-12-16 06:26:41,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:41,553 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 434 transitions. [2023-12-16 06:26:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:41,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:41,553 INFO L195 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] [2023-12-16 06:26:41,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:26:41,553 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:41,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash -29192250, now seen corresponding path program 1 times [2023-12-16 06:26:41,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:41,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474056861] [2023-12-16 06:26:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:41,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:41,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:41,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:41,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474056861] [2023-12-16 06:26:41,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474056861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:41,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:41,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 06:26:41,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814103029] [2023-12-16 06:26:41,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:41,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:26:41,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:41,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:26:41,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:26:41,946 INFO L87 Difference]: Start difference. First operand 336 states and 434 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 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) [2023-12-16 06:26:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:42,590 INFO L93 Difference]: Finished difference Result 840 states and 1100 transitions. [2023-12-16 06:26:42,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 06:26:42,590 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 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 [2023-12-16 06:26:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:42,592 INFO L225 Difference]: With dead ends: 840 [2023-12-16 06:26:42,592 INFO L226 Difference]: Without dead ends: 836 [2023-12-16 06:26:42,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-12-16 06:26:42,593 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1489 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:42,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 2129 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:42,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-12-16 06:26:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 332. [2023-12-16 06:26:42,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 322 states have (on average 1.3354037267080745) internal successors, (430), 331 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:42,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 430 transitions. [2023-12-16 06:26:42,602 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 430 transitions. Word has length 64 [2023-12-16 06:26:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:42,602 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 430 transitions. [2023-12-16 06:26:42,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 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) [2023-12-16 06:26:42,602 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 430 transitions. [2023-12-16 06:26:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:42,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:42,602 INFO L195 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] [2023-12-16 06:26:42,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:26:42,603 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:42,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:42,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2063869805, now seen corresponding path program 1 times [2023-12-16 06:26:42,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:42,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58901798] [2023-12-16 06:26:42,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:42,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58901798] [2023-12-16 06:26:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58901798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:43,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:43,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-16 06:26:43,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923405258] [2023-12-16 06:26:43,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:43,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-16 06:26:43,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:43,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-16 06:26:43,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-12-16 06:26:43,418 INFO L87 Difference]: Start difference. First operand 332 states and 430 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 22 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) [2023-12-16 06:26:45,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:45,503 INFO L93 Difference]: Finished difference Result 764 states and 1025 transitions. [2023-12-16 06:26:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 06:26:45,503 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 22 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 [2023-12-16 06:26:45,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:45,505 INFO L225 Difference]: With dead ends: 764 [2023-12-16 06:26:45,505 INFO L226 Difference]: Without dead ends: 651 [2023-12-16 06:26:45,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=1435, Unknown=0, NotChecked=0, Total=1722 [2023-12-16 06:26:45,506 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1551 mSDsluCounter, 5682 mSDsCounter, 0 mSdLazyCounter, 3412 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6172 SdHoareTripleChecker+Invalid, 3415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:45,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 6172 Invalid, 3415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3412 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 06:26:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-12-16 06:26:45,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 331. [2023-12-16 06:26:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 321 states have (on average 1.3302180685358256) internal successors, (427), 330 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:45,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 427 transitions. [2023-12-16 06:26:45,511 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 427 transitions. Word has length 64 [2023-12-16 06:26:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:45,511 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 427 transitions. [2023-12-16 06:26:45,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 22 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) [2023-12-16 06:26:45,511 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 427 transitions. [2023-12-16 06:26:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:45,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:45,512 INFO L195 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] [2023-12-16 06:26:45,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:26:45,512 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:45,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:45,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1085248927, now seen corresponding path program 1 times [2023-12-16 06:26:45,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:45,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751556991] [2023-12-16 06:26:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:45,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:45,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751556991] [2023-12-16 06:26:45,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751556991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:45,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:45,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 06:26:45,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716511393] [2023-12-16 06:26:45,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:45,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 06:26:45,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:45,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 06:26:45,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:26:45,871 INFO L87 Difference]: Start difference. First operand 331 states and 427 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 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) [2023-12-16 06:26:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:46,500 INFO L93 Difference]: Finished difference Result 1110 states and 1557 transitions. [2023-12-16 06:26:46,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:26:46,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 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 [2023-12-16 06:26:46,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:46,504 INFO L225 Difference]: With dead ends: 1110 [2023-12-16 06:26:46,504 INFO L226 Difference]: Without dead ends: 982 [2023-12-16 06:26:46,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-16 06:26:46,505 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 1541 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:46,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 3899 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:46,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2023-12-16 06:26:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 309. [2023-12-16 06:26:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 301 states have (on average 1.318936877076412) internal successors, (397), 308 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 397 transitions. [2023-12-16 06:26:46,512 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 397 transitions. Word has length 64 [2023-12-16 06:26:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:46,512 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 397 transitions. [2023-12-16 06:26:46,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 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) [2023-12-16 06:26:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 397 transitions. [2023-12-16 06:26:46,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:26:46,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:46,513 INFO L195 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] [2023-12-16 06:26:46,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:26:46,513 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:46,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:46,513 INFO L85 PathProgramCache]: Analyzing trace with hash 632833740, now seen corresponding path program 1 times [2023-12-16 06:26:46,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:46,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396730265] [2023-12-16 06:26:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:46,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:46,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:46,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396730265] [2023-12-16 06:26:46,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396730265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:46,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:46,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:26:46,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416636057] [2023-12-16 06:26:46,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:46,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:26:46,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:46,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:26:46,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:26:46,834 INFO L87 Difference]: Start difference. First operand 309 states and 397 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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) [2023-12-16 06:26:47,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:47,118 INFO L93 Difference]: Finished difference Result 795 states and 1095 transitions. [2023-12-16 06:26:47,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:26:47,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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 [2023-12-16 06:26:47,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:47,120 INFO L225 Difference]: With dead ends: 795 [2023-12-16 06:26:47,120 INFO L226 Difference]: Without dead ends: 626 [2023-12-16 06:26:47,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-16 06:26:47,121 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 1514 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:47,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 958 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:26:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-12-16 06:26:47,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 246. [2023-12-16 06:26:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 242 states have (on average 1.322314049586777) internal successors, (320), 245 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:47,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 320 transitions. [2023-12-16 06:26:47,126 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 320 transitions. Word has length 64 [2023-12-16 06:26:47,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:47,126 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 320 transitions. [2023-12-16 06:26:47,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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) [2023-12-16 06:26:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 320 transitions. [2023-12-16 06:26:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 06:26:47,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:47,127 INFO L195 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] [2023-12-16 06:26:47,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:26:47,127 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:47,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:47,127 INFO L85 PathProgramCache]: Analyzing trace with hash -735435847, now seen corresponding path program 1 times [2023-12-16 06:26:47,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:47,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68808591] [2023-12-16 06:26:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:47,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:47,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:47,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68808591] [2023-12-16 06:26:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68808591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:47,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:47,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:47,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210757638] [2023-12-16 06:26:47,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:47,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:47,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:47,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:47,244 INFO L87 Difference]: Start difference. First operand 246 states and 320 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:47,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:47,504 INFO L93 Difference]: Finished difference Result 409 states and 542 transitions. [2023-12-16 06:26:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 06:26:47,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-16 06:26:47,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:47,505 INFO L225 Difference]: With dead ends: 409 [2023-12-16 06:26:47,505 INFO L226 Difference]: Without dead ends: 402 [2023-12-16 06:26:47,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-16 06:26:47,506 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 813 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:47,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 500 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:47,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-12-16 06:26:47,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 246. [2023-12-16 06:26:47,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 242 states have (on average 1.3181818181818181) internal successors, (319), 245 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 319 transitions. [2023-12-16 06:26:47,510 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 319 transitions. Word has length 65 [2023-12-16 06:26:47,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:47,510 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 319 transitions. [2023-12-16 06:26:47,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:47,510 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2023-12-16 06:26:47,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 06:26:47,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:47,510 INFO L195 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] [2023-12-16 06:26:47,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:26:47,511 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:47,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:47,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1053254316, now seen corresponding path program 1 times [2023-12-16 06:26:47,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:47,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013489514] [2023-12-16 06:26:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:47,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:47,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:47,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013489514] [2023-12-16 06:26:47,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013489514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:47,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:47,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 06:26:47,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281818904] [2023-12-16 06:26:47,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:47,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 06:26:47,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:47,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 06:26:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:26:47,818 INFO L87 Difference]: Start difference. First operand 246 states and 319 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 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) [2023-12-16 06:26:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:48,147 INFO L93 Difference]: Finished difference Result 516 states and 706 transitions. [2023-12-16 06:26:48,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 06:26:48,148 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 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 [2023-12-16 06:26:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:48,149 INFO L225 Difference]: With dead ends: 516 [2023-12-16 06:26:48,149 INFO L226 Difference]: Without dead ends: 395 [2023-12-16 06:26:48,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-12-16 06:26:48,149 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 806 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:48,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1660 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:26:48,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-12-16 06:26:48,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 227. [2023-12-16 06:26:48,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 224 states have (on average 1.3214285714285714) internal successors, (296), 226 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 296 transitions. [2023-12-16 06:26:48,153 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 296 transitions. Word has length 65 [2023-12-16 06:26:48,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:48,153 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 296 transitions. [2023-12-16 06:26:48,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 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) [2023-12-16 06:26:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 296 transitions. [2023-12-16 06:26:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 06:26:48,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:48,154 INFO L195 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] [2023-12-16 06:26:48,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 06:26:48,154 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:48,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:48,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2125205281, now seen corresponding path program 1 times [2023-12-16 06:26:48,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:48,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351616342] [2023-12-16 06:26:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:48,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:48,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351616342] [2023-12-16 06:26:48,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351616342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:48,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:48,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:48,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670425992] [2023-12-16 06:26:48,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:48,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:48,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:48,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:48,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:48,268 INFO L87 Difference]: Start difference. First operand 227 states and 296 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:48,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:48,542 INFO L93 Difference]: Finished difference Result 517 states and 708 transitions. [2023-12-16 06:26:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 06:26:48,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-16 06:26:48,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:48,545 INFO L225 Difference]: With dead ends: 517 [2023-12-16 06:26:48,545 INFO L226 Difference]: Without dead ends: 381 [2023-12-16 06:26:48,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-16 06:26:48,545 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 486 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:48,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 577 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:48,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-12-16 06:26:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 227. [2023-12-16 06:26:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 224 states have (on average 1.3125) internal successors, (294), 226 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 294 transitions. [2023-12-16 06:26:48,549 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 294 transitions. Word has length 65 [2023-12-16 06:26:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:48,549 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 294 transitions. [2023-12-16 06:26:48,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 294 transitions. [2023-12-16 06:26:48,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:26:48,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:48,549 INFO L195 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] [2023-12-16 06:26:48,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 06:26:48,550 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:48,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:48,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1624840076, now seen corresponding path program 1 times [2023-12-16 06:26:48,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:48,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49940393] [2023-12-16 06:26:48,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:48,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:49,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49940393] [2023-12-16 06:26:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49940393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:49,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:49,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-16 06:26:49,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139846502] [2023-12-16 06:26:49,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:49,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-16 06:26:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-16 06:26:49,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-16 06:26:49,128 INFO L87 Difference]: Start difference. First operand 227 states and 294 transitions. Second operand has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 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) [2023-12-16 06:26:49,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:49,911 INFO L93 Difference]: Finished difference Result 259 states and 326 transitions. [2023-12-16 06:26:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 06:26:49,912 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 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 [2023-12-16 06:26:49,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:49,912 INFO L225 Difference]: With dead ends: 259 [2023-12-16 06:26:49,912 INFO L226 Difference]: Without dead ends: 251 [2023-12-16 06:26:49,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=247, Invalid=1159, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 06:26:49,913 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 373 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:49,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1730 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:26:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-12-16 06:26:49,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 235. [2023-12-16 06:26:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 232 states have (on average 1.3060344827586208) internal successors, (303), 234 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:49,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 303 transitions. [2023-12-16 06:26:49,917 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 303 transitions. Word has length 67 [2023-12-16 06:26:49,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:49,917 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 303 transitions. [2023-12-16 06:26:49,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 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) [2023-12-16 06:26:49,917 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 303 transitions. [2023-12-16 06:26:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:26:49,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:49,917 INFO L195 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] [2023-12-16 06:26:49,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 06:26:49,917 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:49,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:49,918 INFO L85 PathProgramCache]: Analyzing trace with hash 846749532, now seen corresponding path program 1 times [2023-12-16 06:26:49,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:49,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729245822] [2023-12-16 06:26:49,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:49,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:50,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:50,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729245822] [2023-12-16 06:26:50,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729245822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:50,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:50,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-16 06:26:50,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693294688] [2023-12-16 06:26:50,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:50,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-16 06:26:50,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:50,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-16 06:26:50,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2023-12-16 06:26:50,575 INFO L87 Difference]: Start difference. First operand 235 states and 303 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 22 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) [2023-12-16 06:26:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:51,705 INFO L93 Difference]: Finished difference Result 828 states and 1168 transitions. [2023-12-16 06:26:51,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-16 06:26:51,705 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 22 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 [2023-12-16 06:26:51,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:51,707 INFO L225 Difference]: With dead ends: 828 [2023-12-16 06:26:51,707 INFO L226 Difference]: Without dead ends: 822 [2023-12-16 06:26:51,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=1369, Unknown=0, NotChecked=0, Total=1640 [2023-12-16 06:26:51,708 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 814 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:51,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 3232 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 06:26:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-12-16 06:26:51,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 246. [2023-12-16 06:26:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 243 states have (on average 1.3045267489711934) internal successors, (317), 245 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 317 transitions. [2023-12-16 06:26:51,714 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 317 transitions. Word has length 67 [2023-12-16 06:26:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:51,714 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 317 transitions. [2023-12-16 06:26:51,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 22 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) [2023-12-16 06:26:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 317 transitions. [2023-12-16 06:26:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:26:51,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:51,714 INFO L195 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] [2023-12-16 06:26:51,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 06:26:51,715 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:51,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:51,715 INFO L85 PathProgramCache]: Analyzing trace with hash -2071478165, now seen corresponding path program 1 times [2023-12-16 06:26:51,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:51,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248524846] [2023-12-16 06:26:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:51,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:52,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:52,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248524846] [2023-12-16 06:26:52,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248524846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:52,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-16 06:26:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874119760] [2023-12-16 06:26:52,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 06:26:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 06:26:52,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:26:52,242 INFO L87 Difference]: Start difference. First operand 246 states and 317 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 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) [2023-12-16 06:26:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:52,811 INFO L93 Difference]: Finished difference Result 263 states and 334 transitions. [2023-12-16 06:26:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 06:26:52,812 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 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 [2023-12-16 06:26:52,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:52,813 INFO L225 Difference]: With dead ends: 263 [2023-12-16 06:26:52,813 INFO L226 Difference]: Without dead ends: 244 [2023-12-16 06:26:52,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2023-12-16 06:26:52,813 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 548 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:52,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1246 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:52,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-16 06:26:52,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 238. [2023-12-16 06:26:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 235 states have (on average 1.3063829787234043) internal successors, (307), 237 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:52,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 307 transitions. [2023-12-16 06:26:52,816 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 307 transitions. Word has length 68 [2023-12-16 06:26:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:52,816 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 307 transitions. [2023-12-16 06:26:52,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 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) [2023-12-16 06:26:52,817 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 307 transitions. [2023-12-16 06:26:52,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:26:52,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:52,817 INFO L195 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] [2023-12-16 06:26:52,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 06:26:52,817 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:52,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash -43266322, now seen corresponding path program 1 times [2023-12-16 06:26:52,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:52,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702076947] [2023-12-16 06:26:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:52,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:53,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:53,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702076947] [2023-12-16 06:26:53,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702076947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:53,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:53,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-16 06:26:53,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820650312] [2023-12-16 06:26:53,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:53,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 06:26:53,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:53,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 06:26:53,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-16 06:26:53,300 INFO L87 Difference]: Start difference. First operand 238 states and 307 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 15 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) [2023-12-16 06:26:53,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:53,842 INFO L93 Difference]: Finished difference Result 241 states and 310 transitions. [2023-12-16 06:26:53,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 06:26:53,842 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 15 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 [2023-12-16 06:26:53,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:53,843 INFO L225 Difference]: With dead ends: 241 [2023-12-16 06:26:53,843 INFO L226 Difference]: Without dead ends: 223 [2023-12-16 06:26:53,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=650, Unknown=0, NotChecked=0, Total=812 [2023-12-16 06:26:53,844 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 445 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:53,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1080 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:53,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-16 06:26:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2023-12-16 06:26:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.31651376146789) internal successors, (287), 219 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 287 transitions. [2023-12-16 06:26:53,846 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 287 transitions. Word has length 68 [2023-12-16 06:26:53,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:53,846 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 287 transitions. [2023-12-16 06:26:53,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 15 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) [2023-12-16 06:26:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 287 transitions. [2023-12-16 06:26:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:26:53,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:53,847 INFO L195 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] [2023-12-16 06:26:53,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 06:26:53,847 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:53,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:53,847 INFO L85 PathProgramCache]: Analyzing trace with hash 766856175, now seen corresponding path program 1 times [2023-12-16 06:26:53,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:53,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019385327] [2023-12-16 06:26:53,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:53,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:54,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:54,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019385327] [2023-12-16 06:26:54,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019385327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:54,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:54,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 06:26:54,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529067732] [2023-12-16 06:26:54,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:54,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:26:54,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:54,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:26:54,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:26:54,168 INFO L87 Difference]: Start difference. First operand 220 states and 287 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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) [2023-12-16 06:26:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:54,763 INFO L93 Difference]: Finished difference Result 1040 states and 1491 transitions. [2023-12-16 06:26:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 06:26:54,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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 [2023-12-16 06:26:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:54,766 INFO L225 Difference]: With dead ends: 1040 [2023-12-16 06:26:54,766 INFO L226 Difference]: Without dead ends: 1034 [2023-12-16 06:26:54,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-16 06:26:54,767 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1207 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:54,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 2593 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:26:54,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-16 06:26:54,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 203. [2023-12-16 06:26:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 1.316831683168317) internal successors, (266), 202 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 266 transitions. [2023-12-16 06:26:54,774 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 266 transitions. Word has length 68 [2023-12-16 06:26:54,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:54,774 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 266 transitions. [2023-12-16 06:26:54,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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) [2023-12-16 06:26:54,775 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 266 transitions. [2023-12-16 06:26:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:26:54,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:54,775 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:54,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 06:26:54,775 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:54,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash -482876882, now seen corresponding path program 1 times [2023-12-16 06:26:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:54,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409033432] [2023-12-16 06:26:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:54,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:54,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:54,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409033432] [2023-12-16 06:26:54,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409033432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:54,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:54,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:54,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126540965] [2023-12-16 06:26:54,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:54,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:54,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:54,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:54,849 INFO L87 Difference]: Start difference. First operand 203 states and 266 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:54,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:54,922 INFO L93 Difference]: Finished difference Result 1051 states and 1546 transitions. [2023-12-16 06:26:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:26:54,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-16 06:26:54,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:54,924 INFO L225 Difference]: With dead ends: 1051 [2023-12-16 06:26:54,924 INFO L226 Difference]: Without dead ends: 945 [2023-12-16 06:26:54,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:26:54,925 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 902 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:54,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 958 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:54,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2023-12-16 06:26:54,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 307. [2023-12-16 06:26:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.3758169934640523) internal successors, (421), 306 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 421 transitions. [2023-12-16 06:26:54,933 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 421 transitions. Word has length 90 [2023-12-16 06:26:54,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:54,933 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 421 transitions. [2023-12-16 06:26:54,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:54,933 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 421 transitions. [2023-12-16 06:26:54,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:26:54,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:54,934 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:54,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 06:26:54,934 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:54,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:54,934 INFO L85 PathProgramCache]: Analyzing trace with hash 736076837, now seen corresponding path program 1 times [2023-12-16 06:26:54,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:54,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133014697] [2023-12-16 06:26:54,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:54,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:55,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:55,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133014697] [2023-12-16 06:26:55,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133014697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:55,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:55,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:55,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031768820] [2023-12-16 06:26:55,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:55,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:55,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:55,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:55,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:55,007 INFO L87 Difference]: Start difference. First operand 307 states and 421 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:55,075 INFO L93 Difference]: Finished difference Result 1253 states and 1837 transitions. [2023-12-16 06:26:55,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:55,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-16 06:26:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:55,078 INFO L225 Difference]: With dead ends: 1253 [2023-12-16 06:26:55,078 INFO L226 Difference]: Without dead ends: 1043 [2023-12-16 06:26:55,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:26:55,079 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 651 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:55,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 675 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:55,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-12-16 06:26:55,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 515. [2023-12-16 06:26:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.4260700389105059) internal successors, (733), 514 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 733 transitions. [2023-12-16 06:26:55,087 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 733 transitions. Word has length 92 [2023-12-16 06:26:55,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:55,088 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 733 transitions. [2023-12-16 06:26:55,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,088 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 733 transitions. [2023-12-16 06:26:55,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:26:55,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:55,088 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:55,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 06:26:55,089 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:55,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:55,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1778526310, now seen corresponding path program 1 times [2023-12-16 06:26:55,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:55,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739508600] [2023-12-16 06:26:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:55,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:55,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:55,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739508600] [2023-12-16 06:26:55,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739508600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:55,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:55,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812436750] [2023-12-16 06:26:55,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:55,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:55,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:55,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:55,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:55,198 INFO L87 Difference]: Start difference. First operand 515 states and 733 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:55,267 INFO L93 Difference]: Finished difference Result 935 states and 1361 transitions. [2023-12-16 06:26:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:55,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-16 06:26:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:55,268 INFO L225 Difference]: With dead ends: 935 [2023-12-16 06:26:55,268 INFO L226 Difference]: Without dead ends: 517 [2023-12-16 06:26:55,269 INFO L412 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 [2023-12-16 06:26:55,270 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 268 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:55,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 378 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:55,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-12-16 06:26:55,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 515. [2023-12-16 06:26:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.4182879377431907) internal successors, (729), 514 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 729 transitions. [2023-12-16 06:26:55,275 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 729 transitions. Word has length 92 [2023-12-16 06:26:55,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:55,276 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 729 transitions. [2023-12-16 06:26:55,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 729 transitions. [2023-12-16 06:26:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:26:55,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:55,276 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:55,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 06:26:55,277 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:55,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:55,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1712032798, now seen corresponding path program 1 times [2023-12-16 06:26:55,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:55,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762301064] [2023-12-16 06:26:55,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:55,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:55,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:55,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762301064] [2023-12-16 06:26:55,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762301064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:55,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:55,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:55,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169864712] [2023-12-16 06:26:55,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:55,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:55,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:55,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:55,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:55,330 INFO L87 Difference]: Start difference. First operand 515 states and 729 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:55,350 INFO L93 Difference]: Finished difference Result 1299 states and 1887 transitions. [2023-12-16 06:26:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:55,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-16 06:26:55,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:55,352 INFO L225 Difference]: With dead ends: 1299 [2023-12-16 06:26:55,352 INFO L226 Difference]: Without dead ends: 881 [2023-12-16 06:26:55,353 INFO L412 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 [2023-12-16 06:26:55,353 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 89 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:55,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 250 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:55,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2023-12-16 06:26:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 871. [2023-12-16 06:26:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 870 states have (on average 1.4195402298850575) internal successors, (1235), 870 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1235 transitions. [2023-12-16 06:26:55,363 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1235 transitions. Word has length 92 [2023-12-16 06:26:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:55,363 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1235 transitions. [2023-12-16 06:26:55,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1235 transitions. [2023-12-16 06:26:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:26:55,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:55,364 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:55,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 06:26:55,365 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:55,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1503158235, now seen corresponding path program 1 times [2023-12-16 06:26:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733700753] [2023-12-16 06:26:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:55,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:55,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733700753] [2023-12-16 06:26:55,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733700753] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:55,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:55,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:55,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826649674] [2023-12-16 06:26:55,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:55,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:55,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:55,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:55,434 INFO L87 Difference]: Start difference. First operand 871 states and 1235 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:55,499 INFO L93 Difference]: Finished difference Result 2619 states and 3784 transitions. [2023-12-16 06:26:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:55,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-16 06:26:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:55,504 INFO L225 Difference]: With dead ends: 2619 [2023-12-16 06:26:55,504 INFO L226 Difference]: Without dead ends: 2231 [2023-12-16 06:26:55,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:26:55,507 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 619 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:55,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 679 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:55,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2023-12-16 06:26:55,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1451. [2023-12-16 06:26:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1450 states have (on average 1.4324137931034482) internal successors, (2077), 1450 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2077 transitions. [2023-12-16 06:26:55,531 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2077 transitions. Word has length 92 [2023-12-16 06:26:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:55,531 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2077 transitions. [2023-12-16 06:26:55,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2077 transitions. [2023-12-16 06:26:55,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:26:55,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:55,532 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:55,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-16 06:26:55,533 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:55,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:55,533 INFO L85 PathProgramCache]: Analyzing trace with hash 371991077, now seen corresponding path program 1 times [2023-12-16 06:26:55,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:55,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310835828] [2023-12-16 06:26:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:55,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:55,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:55,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310835828] [2023-12-16 06:26:55,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310835828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:55,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:55,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:55,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304688031] [2023-12-16 06:26:55,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:55,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:55,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:55,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:55,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:55,599 INFO L87 Difference]: Start difference. First operand 1451 states and 2077 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:55,661 INFO L93 Difference]: Finished difference Result 3005 states and 4346 transitions. [2023-12-16 06:26:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:55,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-16 06:26:55,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:55,666 INFO L225 Difference]: With dead ends: 3005 [2023-12-16 06:26:55,667 INFO L226 Difference]: Without dead ends: 2617 [2023-12-16 06:26:55,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:26:55,668 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 587 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:55,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 734 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2023-12-16 06:26:55,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 1837. [2023-12-16 06:26:55,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1837 states, 1836 states have (on average 1.437363834422658) internal successors, (2639), 1836 states have internal predecessors, (2639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2639 transitions. [2023-12-16 06:26:55,694 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2639 transitions. Word has length 92 [2023-12-16 06:26:55,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:55,694 INFO L495 AbstractCegarLoop]: Abstraction has 1837 states and 2639 transitions. [2023-12-16 06:26:55,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2639 transitions. [2023-12-16 06:26:55,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 06:26:55,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:55,695 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:55,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-16 06:26:55,695 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:55,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:55,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1145576757, now seen corresponding path program 1 times [2023-12-16 06:26:55,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:55,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782512421] [2023-12-16 06:26:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:55,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:55,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:55,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782512421] [2023-12-16 06:26:55,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782512421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:55,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:55,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:55,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052610131] [2023-12-16 06:26:55,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:55,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:55,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:55,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:55,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:55,748 INFO L87 Difference]: Start difference. First operand 1837 states and 2639 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:55,766 INFO L93 Difference]: Finished difference Result 5173 states and 7453 transitions. [2023-12-16 06:26:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:55,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-16 06:26:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:55,784 INFO L225 Difference]: With dead ends: 5173 [2023-12-16 06:26:55,784 INFO L226 Difference]: Without dead ends: 3433 [2023-12-16 06:26:55,787 INFO L412 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 [2023-12-16 06:26:55,789 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 73 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:55,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 331 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:55,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2023-12-16 06:26:55,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3287. [2023-12-16 06:26:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3287 states, 3286 states have (on average 1.431223371880706) internal successors, (4703), 3286 states have internal predecessors, (4703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3287 states to 3287 states and 4703 transitions. [2023-12-16 06:26:55,828 INFO L78 Accepts]: Start accepts. Automaton has 3287 states and 4703 transitions. Word has length 93 [2023-12-16 06:26:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:55,828 INFO L495 AbstractCegarLoop]: Abstraction has 3287 states and 4703 transitions. [2023-12-16 06:26:55,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3287 states and 4703 transitions. [2023-12-16 06:26:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 06:26:55,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:55,829 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:55,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-16 06:26:55,829 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:55,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:55,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1230483478, now seen corresponding path program 1 times [2023-12-16 06:26:55,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:55,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679786371] [2023-12-16 06:26:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:55,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:55,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:55,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679786371] [2023-12-16 06:26:55,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679786371] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:55,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:55,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:55,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181157396] [2023-12-16 06:26:55,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:55,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:55,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:55,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:55,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:55,883 INFO L87 Difference]: Start difference. First operand 3287 states and 4703 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:55,912 INFO L93 Difference]: Finished difference Result 9379 states and 13393 transitions. [2023-12-16 06:26:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:55,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-16 06:26:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:55,920 INFO L225 Difference]: With dead ends: 9379 [2023-12-16 06:26:55,920 INFO L226 Difference]: Without dead ends: 6189 [2023-12-16 06:26:55,925 INFO L412 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 [2023-12-16 06:26:55,925 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 66 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:55,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 331 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:55,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6189 states. [2023-12-16 06:26:55,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6189 to 5899. [2023-12-16 06:26:55,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5899 states, 5898 states have (on average 1.4179382841641235) internal successors, (8363), 5898 states have internal predecessors, (8363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5899 states to 5899 states and 8363 transitions. [2023-12-16 06:26:55,991 INFO L78 Accepts]: Start accepts. Automaton has 5899 states and 8363 transitions. Word has length 94 [2023-12-16 06:26:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:55,991 INFO L495 AbstractCegarLoop]: Abstraction has 5899 states and 8363 transitions. [2023-12-16 06:26:55,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:55,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5899 states and 8363 transitions. [2023-12-16 06:26:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 06:26:55,992 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:55,992 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:55,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-16 06:26:55,993 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:55,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:55,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1771587671, now seen corresponding path program 1 times [2023-12-16 06:26:55,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:55,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690086425] [2023-12-16 06:26:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:55,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:56,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:56,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:56,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690086425] [2023-12-16 06:26:56,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690086425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:56,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:56,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:56,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788789096] [2023-12-16 06:26:56,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:56,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:56,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:56,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:56,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:56,056 INFO L87 Difference]: Start difference. First operand 5899 states and 8363 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:56,091 INFO L93 Difference]: Finished difference Result 16927 states and 23869 transitions. [2023-12-16 06:26:56,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:56,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-16 06:26:56,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:56,140 INFO L225 Difference]: With dead ends: 16927 [2023-12-16 06:26:56,141 INFO L226 Difference]: Without dead ends: 11125 [2023-12-16 06:26:56,206 INFO L412 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 [2023-12-16 06:26:56,206 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 56 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:56,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 331 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2023-12-16 06:26:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 10547. [2023-12-16 06:26:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10547 states, 10546 states have (on average 1.3983500853404134) internal successors, (14747), 10546 states have internal predecessors, (14747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10547 states to 10547 states and 14747 transitions. [2023-12-16 06:26:56,296 INFO L78 Accepts]: Start accepts. Automaton has 10547 states and 14747 transitions. Word has length 95 [2023-12-16 06:26:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:56,297 INFO L495 AbstractCegarLoop]: Abstraction has 10547 states and 14747 transitions. [2023-12-16 06:26:56,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 10547 states and 14747 transitions. [2023-12-16 06:26:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 06:26:56,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:56,297 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:56,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-16 06:26:56,298 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:56,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:56,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1383443042, now seen corresponding path program 1 times [2023-12-16 06:26:56,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:56,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447412134] [2023-12-16 06:26:56,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:56,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:56,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:56,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447412134] [2023-12-16 06:26:56,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447412134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:56,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:56,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:56,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127906607] [2023-12-16 06:26:56,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:56,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:56,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:56,427 INFO L87 Difference]: Start difference. First operand 10547 states and 14747 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:56,492 INFO L93 Difference]: Finished difference Result 18657 states and 25851 transitions. [2023-12-16 06:26:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:26:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-16 06:26:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:56,516 INFO L225 Difference]: With dead ends: 18657 [2023-12-16 06:26:56,517 INFO L226 Difference]: Without dead ends: 18655 [2023-12-16 06:26:56,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:26:56,524 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 260 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:56,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 837 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:56,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18655 states. [2023-12-16 06:26:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18655 to 10931. [2023-12-16 06:26:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10931 states, 10930 states have (on average 1.377035681610247) internal successors, (15051), 10930 states have internal predecessors, (15051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10931 states to 10931 states and 15051 transitions. [2023-12-16 06:26:56,665 INFO L78 Accepts]: Start accepts. Automaton has 10931 states and 15051 transitions. Word has length 96 [2023-12-16 06:26:56,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:56,665 INFO L495 AbstractCegarLoop]: Abstraction has 10931 states and 15051 transitions. [2023-12-16 06:26:56,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:56,666 INFO L276 IsEmpty]: Start isEmpty. Operand 10931 states and 15051 transitions. [2023-12-16 06:26:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 06:26:56,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:56,666 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:56,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-16 06:26:56,667 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:56,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:56,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1531694746, now seen corresponding path program 1 times [2023-12-16 06:26:56,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:56,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423803750] [2023-12-16 06:26:56,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:56,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:56,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:56,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423803750] [2023-12-16 06:26:56,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423803750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:56,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:56,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:26:56,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15443635] [2023-12-16 06:26:56,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:56,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:26:56,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:56,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:26:56,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:26:56,741 INFO L87 Difference]: Start difference. First operand 10931 states and 15051 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:56,836 INFO L93 Difference]: Finished difference Result 20605 states and 28496 transitions. [2023-12-16 06:26:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:26:56,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-16 06:26:56,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:56,863 INFO L225 Difference]: With dead ends: 20605 [2023-12-16 06:26:56,863 INFO L226 Difference]: Without dead ends: 18187 [2023-12-16 06:26:56,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:26:56,872 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 644 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:56,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 756 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:56,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18187 states. [2023-12-16 06:26:57,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18187 to 13347. [2023-12-16 06:26:57,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13347 states, 13346 states have (on average 1.3771167390978571) internal successors, (18379), 13346 states have internal predecessors, (18379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13347 states to 13347 states and 18379 transitions. [2023-12-16 06:26:57,126 INFO L78 Accepts]: Start accepts. Automaton has 13347 states and 18379 transitions. Word has length 96 [2023-12-16 06:26:57,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:57,126 INFO L495 AbstractCegarLoop]: Abstraction has 13347 states and 18379 transitions. [2023-12-16 06:26:57,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,126 INFO L276 IsEmpty]: Start isEmpty. Operand 13347 states and 18379 transitions. [2023-12-16 06:26:57,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 06:26:57,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:57,127 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:57,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-16 06:26:57,127 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:57,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:57,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1379949415, now seen corresponding path program 1 times [2023-12-16 06:26:57,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:57,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36530087] [2023-12-16 06:26:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:57,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:57,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36530087] [2023-12-16 06:26:57,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36530087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:57,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:57,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:57,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124464167] [2023-12-16 06:26:57,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:57,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:57,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:57,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:57,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:57,198 INFO L87 Difference]: Start difference. First operand 13347 states and 18379 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:57,263 INFO L93 Difference]: Finished difference Result 34743 states and 47781 transitions. [2023-12-16 06:26:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:57,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-16 06:26:57,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:57,288 INFO L225 Difference]: With dead ends: 34743 [2023-12-16 06:26:57,288 INFO L226 Difference]: Without dead ends: 21493 [2023-12-16 06:26:57,304 INFO L412 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 [2023-12-16 06:26:57,305 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 77 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:57,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 334 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21493 states. [2023-12-16 06:26:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21493 to 20083. [2023-12-16 06:26:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20083 states, 20082 states have (on average 1.3553928891544667) internal successors, (27219), 20082 states have internal predecessors, (27219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20083 states to 20083 states and 27219 transitions. [2023-12-16 06:26:57,506 INFO L78 Accepts]: Start accepts. Automaton has 20083 states and 27219 transitions. Word has length 97 [2023-12-16 06:26:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:57,507 INFO L495 AbstractCegarLoop]: Abstraction has 20083 states and 27219 transitions. [2023-12-16 06:26:57,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 20083 states and 27219 transitions. [2023-12-16 06:26:57,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 06:26:57,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:57,510 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2023-12-16 06:26:57,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-16 06:26:57,511 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:57,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:57,511 INFO L85 PathProgramCache]: Analyzing trace with hash 78371271, now seen corresponding path program 1 times [2023-12-16 06:26:57,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:57,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697655473] [2023-12-16 06:26:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:57,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:57,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:57,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697655473] [2023-12-16 06:26:57,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697655473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:57,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:57,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:26:57,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215046651] [2023-12-16 06:26:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:57,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:26:57,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:26:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:26:57,574 INFO L87 Difference]: Start difference. First operand 20083 states and 27219 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:57,652 INFO L93 Difference]: Finished difference Result 40071 states and 54333 transitions. [2023-12-16 06:26:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:26:57,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2023-12-16 06:26:57,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:57,672 INFO L225 Difference]: With dead ends: 40071 [2023-12-16 06:26:57,673 INFO L226 Difference]: Without dead ends: 20085 [2023-12-16 06:26:57,690 INFO L412 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 [2023-12-16 06:26:57,690 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 68 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:57,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 308 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:26:57,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20085 states. [2023-12-16 06:26:57,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20085 to 20083. [2023-12-16 06:26:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20083 states, 20082 states have (on average 1.3378647545065232) internal successors, (26867), 20082 states have internal predecessors, (26867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20083 states to 20083 states and 26867 transitions. [2023-12-16 06:26:57,932 INFO L78 Accepts]: Start accepts. Automaton has 20083 states and 26867 transitions. Word has length 123 [2023-12-16 06:26:57,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:57,932 INFO L495 AbstractCegarLoop]: Abstraction has 20083 states and 26867 transitions. [2023-12-16 06:26:57,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 20083 states and 26867 transitions. [2023-12-16 06:26:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 06:26:57,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:57,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:57,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-16 06:26:57,936 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:57,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:57,936 INFO L85 PathProgramCache]: Analyzing trace with hash 289930286, now seen corresponding path program 1 times [2023-12-16 06:26:57,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:57,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786109662] [2023-12-16 06:26:57,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:57,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 06:26:58,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786109662] [2023-12-16 06:26:58,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786109662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:26:58,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:26:58,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:26:58,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377523481] [2023-12-16 06:26:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:26:58,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:26:58,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:26:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:26:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:26:58,071 INFO L87 Difference]: Start difference. First operand 20083 states and 26867 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:26:58,418 INFO L93 Difference]: Finished difference Result 60621 states and 80959 transitions. [2023-12-16 06:26:58,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 06:26:58,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 123 [2023-12-16 06:26:58,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:26:58,457 INFO L225 Difference]: With dead ends: 60621 [2023-12-16 06:26:58,457 INFO L226 Difference]: Without dead ends: 40623 [2023-12-16 06:26:58,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-16 06:26:58,479 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 557 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:26:58,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 483 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:26:58,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40623 states. [2023-12-16 06:26:58,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40623 to 20083. [2023-12-16 06:26:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20083 states, 20082 states have (on average 1.3377651628323872) internal successors, (26865), 20082 states have internal predecessors, (26865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:58,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20083 states to 20083 states and 26865 transitions. [2023-12-16 06:26:58,825 INFO L78 Accepts]: Start accepts. Automaton has 20083 states and 26865 transitions. Word has length 123 [2023-12-16 06:26:58,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:26:58,825 INFO L495 AbstractCegarLoop]: Abstraction has 20083 states and 26865 transitions. [2023-12-16 06:26:58,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:26:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 20083 states and 26865 transitions. [2023-12-16 06:26:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 06:26:58,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:26:58,828 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:26:58,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-16 06:26:58,828 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-12-16 06:26:58,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:26:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash -171587149, now seen corresponding path program 1 times [2023-12-16 06:26:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:26:58,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088323736] [2023-12-16 06:26:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:58,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:26:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:26:59,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:26:59,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088323736] [2023-12-16 06:26:59,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088323736] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:26:59,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119905570] [2023-12-16 06:26:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:26:59,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:26:59,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:26:59,146 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) [2023-12-16 06:26:59,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:26:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:26:59,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-16 06:26:59,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:27:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:27:00,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:27:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:27:01,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119905570] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:27:01,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:27:01,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-12-16 06:27:01,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510848746] [2023-12-16 06:27:01,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:27:01,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-16 06:27:01,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:27:01,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-16 06:27:01,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=880, Unknown=0, NotChecked=0, Total=992 [2023-12-16 06:27:01,337 INFO L87 Difference]: Start difference. First operand 20083 states and 26865 transitions. Second operand has 32 states, 32 states have (on average 10.90625) internal successors, (349), 31 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 06:27:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2023-12-16 06:27:28,461 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:27:28,461 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:27:28,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31626 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=11986, Invalid=71824, Unknown=0, NotChecked=0, Total=83810 [2023-12-16 06:27:28,473 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 5608 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 4342 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5608 SdHoareTripleChecker+Valid, 3955 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 4342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:27:28,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5608 Valid, 3955 Invalid, 4423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 4342 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 06:27:28,487 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2023-12-16 06:27:28,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 06:27:28,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:27:28,688 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. [2023-12-16 06:27:28,690 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2023-12-16 06:27:28,690 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2023-12-16 06:27:28,691 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2023-12-16 06:27:28,691 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2023-12-16 06:27:28,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2023-12-16 06:27:28,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2023-12-16 06:27:28,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2023-12-16 06:27:28,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2023-12-16 06:27:28,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2023-12-16 06:27:28,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2023-12-16 06:27:28,701 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 06:27:28,713 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:27:28,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:27:28 BoogieIcfgContainer [2023-12-16 06:27:28,715 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:27:28,716 INFO L158 Benchmark]: Toolchain (without parser) took 59110.19ms. Allocated memory was 311.4MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 251.0MB in the beginning and 559.2MB in the end (delta: -308.2MB). Peak memory consumption was 778.9MB. Max. memory is 8.0GB. [2023-12-16 06:27:28,716 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 229.6MB. Free memory is still 178.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:27:28,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.13ms. Allocated memory is still 311.4MB. Free memory was 250.8MB in the beginning and 244.0MB in the end (delta: 6.8MB). Peak memory consumption was 38.1MB. Max. memory is 8.0GB. [2023-12-16 06:27:28,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.65ms. Allocated memory is still 311.4MB. Free memory was 244.0MB in the beginning and 233.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 06:27:28,716 INFO L158 Benchmark]: Boogie Preprocessor took 148.33ms. Allocated memory is still 311.4MB. Free memory was 233.1MB in the beginning and 222.1MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 06:27:28,717 INFO L158 Benchmark]: RCFGBuilder took 1487.78ms. Allocated memory is still 311.4MB. Free memory was 222.1MB in the beginning and 239.4MB in the end (delta: -17.3MB). Peak memory consumption was 66.6MB. Max. memory is 8.0GB. [2023-12-16 06:27:28,717 INFO L158 Benchmark]: TraceAbstraction took 56684.17ms. Allocated memory was 311.4MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 238.9MB in the beginning and 559.2MB in the end (delta: -320.3MB). Peak memory consumption was 766.5MB. Max. memory is 8.0GB. [2023-12-16 06:27:28,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 229.6MB. Free memory is still 178.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 702.13ms. Allocated memory is still 311.4MB. Free memory was 250.8MB in the beginning and 244.0MB in the end (delta: 6.8MB). Peak memory consumption was 38.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 83.65ms. Allocated memory is still 311.4MB. Free memory was 244.0MB in the beginning and 233.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 148.33ms. Allocated memory is still 311.4MB. Free memory was 233.1MB in the beginning and 222.1MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1487.78ms. Allocated memory is still 311.4MB. Free memory was 222.1MB in the beginning and 239.4MB in the end (delta: -17.3MB). Peak memory consumption was 66.6MB. Max. memory is 8.0GB. * TraceAbstraction took 56684.17ms. Allocated memory was 311.4MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 238.9MB in the beginning and 559.2MB in the end (delta: -320.3MB). Peak memory consumption was 766.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 2497]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2497). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 1189]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1189). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 1707]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1707). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 1963]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1963). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 2203]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2203). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 2748]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2748). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 3004]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3004). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 3244]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3244). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 3512]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3512). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 3753]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3753). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - TimeoutResultAtElement [Line: 4004]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 4004). Cancelled while NwaCegarLoop was constructing difference of abstraction (20083states) and FLOYD_HOARE automaton (currently 260 states, 32 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-20-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-18-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 535 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 56.6s, OverallIterations: 42, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 43.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43384 SdHoareTripleChecker+Valid, 12.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43384 mSDsluCounter, 49596 SdHoareTripleChecker+Invalid, 10.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39599 mSDsCounter, 294 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24570 IncrementalHoareTripleChecker+Invalid, 24864 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 294 mSolverCounterUnsat, 9997 mSDtfsCounter, 24570 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1179 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 891 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33772 ImplicationChecksByTransitivity, 31.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20083occurred in iteration=39, InterpolantAutomatonStates: 465, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 41 MinimizatonAttempts, 46597 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 3314 NumberOfCodeBlocks, 3314 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 3395 ConstructedInterpolants, 0 QuantifiedInterpolants, 32356 SizeOfPredicates, 6 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 44 InterpolantComputations, 41 PerfectInterpolantSequences, 63/83 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown