/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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:28:21,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:28:21,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:28:21,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:28:21,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:28:21,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:28:21,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:28:21,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:28:21,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:28:21,423 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:28:21,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:28:21,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:28:21,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:28:21,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:28:21,426 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:28:21,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:28:21,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:28:21,426 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:28:21,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:28:21,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:28:21,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:28:21,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:28:21,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:28:21,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:28:21,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:28:21,428 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:28:21,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:28:21,428 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:28:21,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:28:21,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:28:21,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:28:21,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:28:21,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:28:21,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:28:21,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:28:21,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:28:21,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:28:21,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:28:21,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:28:21,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:28:21,431 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:28:21,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:28:21,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:28:21,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:28:21,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:28:21,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:28:21,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:28:21,629 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:28:21,629 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:28:21,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-21 13:28:22,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:28:22,932 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:28:22,933 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-21 13:28:22,955 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316a6c82d/cdaa0053fd5640fda76f7d80b546b9e9/FLAG0152c0ee4 [2023-12-21 13:28:22,964 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316a6c82d/cdaa0053fd5640fda76f7d80b546b9e9 [2023-12-21 13:28:22,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:28:22,966 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:28:22,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:28:22,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:28:22,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:28:22,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:28:22" (1/1) ... [2023-12-21 13:28:22,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b68a476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:22, skipping insertion in model container [2023-12-21 13:28:22,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:28:22" (1/1) ... [2023-12-21 13:28:23,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:28:23,318 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2023-12-21 13:28:23,355 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2023-12-21 13:28:23,364 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2023-12-21 13:28:23,369 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2023-12-21 13:28:23,381 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2023-12-21 13:28:23,385 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2023-12-21 13:28:23,393 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2023-12-21 13:28:23,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:28:23,771 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:28:23,812 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2023-12-21 13:28:23,822 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2023-12-21 13:28:23,826 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2023-12-21 13:28:23,828 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2023-12-21 13:28:23,836 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2023-12-21 13:28:23,839 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2023-12-21 13:28:23,844 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-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2023-12-21 13:28:24,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:28:24,041 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:28:24,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24 WrapperNode [2023-12-21 13:28:24,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:28:24,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:28:24,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:28:24,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:28:24,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,251 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7669 [2023-12-21 13:28:24,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:28:24,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:28:24,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:28:24,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:28:24,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,341 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]. [2023-12-21 13:28:24,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:28:24,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:28:24,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:28:24,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:28:24,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (1/1) ... [2023-12-21 13:28:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:28:24,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:28:24,483 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) [2023-12-21 13:28:24,512 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 [2023-12-21 13:28:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:28:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:28:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:28:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:28:24,762 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:28:24,764 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:28:26,878 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:28:26,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:28:26,976 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:28:26,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:28:26 BoogieIcfgContainer [2023-12-21 13:28:26,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:28:26,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:28:26,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:28:26,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:28:26,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:28:22" (1/3) ... [2023-12-21 13:28:26,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4193adfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:28:26, skipping insertion in model container [2023-12-21 13:28:26,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:28:24" (2/3) ... [2023-12-21 13:28:26,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4193adfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:28:26, skipping insertion in model container [2023-12-21 13:28:26,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:28:26" (3/3) ... [2023-12-21 13:28:26,998 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-12-21 13:28:27,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:28:27,011 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-21 13:28:27,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:28:27,097 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;@518425d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:28:27,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-21 13:28:27,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-21 13:28:27,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:27,134 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] [2023-12-21 13:28:27,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:27,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:27,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1184813438, now seen corresponding path program 1 times [2023-12-21 13:28:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:27,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824329763] [2023-12-21 13:28:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:27,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:27,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:27,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824329763] [2023-12-21 13:28:27,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824329763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:27,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:27,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:27,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015104799] [2023-12-21 13:28:27,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:27,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:27,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:27,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:27,477 INFO L87 Difference]: Start difference. First operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:27,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:27,643 INFO L93 Difference]: Finished difference Result 1461 states and 2647 transitions. [2023-12-21 13:28:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:27,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-21 13:28:27,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:27,658 INFO L225 Difference]: With dead ends: 1461 [2023-12-21 13:28:27,658 INFO L226 Difference]: Without dead ends: 1287 [2023-12-21 13:28:27,661 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 [2023-12-21 13:28:27,664 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 968 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:27,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 3322 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2023-12-21 13:28:27,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1279. [2023-12-21 13:28:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1272 states have (on average 1.3168238993710693) internal successors, (1675), 1278 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1675 transitions. [2023-12-21 13:28:27,726 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1675 transitions. Word has length 63 [2023-12-21 13:28:27,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:27,727 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1675 transitions. [2023-12-21 13:28:27,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1675 transitions. [2023-12-21 13:28:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-21 13:28:27,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:27,730 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] [2023-12-21 13:28:27,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:28:27,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:27,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:27,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2003436219, now seen corresponding path program 1 times [2023-12-21 13:28:27,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:27,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127138999] [2023-12-21 13:28:27,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:27,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:27,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:27,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127138999] [2023-12-21 13:28:27,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127138999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:27,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:27,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:27,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919331037] [2023-12-21 13:28:27,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:27,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:27,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:27,843 INFO L87 Difference]: Start difference. First operand 1279 states and 1675 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:27,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:27,912 INFO L93 Difference]: Finished difference Result 1929 states and 2621 transitions. [2023-12-21 13:28:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:27,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-21 13:28:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:27,918 INFO L225 Difference]: With dead ends: 1929 [2023-12-21 13:28:27,918 INFO L226 Difference]: Without dead ends: 1575 [2023-12-21 13:28:27,922 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 [2023-12-21 13:28:27,923 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 717 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:27,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 2313 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2023-12-21 13:28:27,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1567. [2023-12-21 13:28:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1560 states have (on average 1.3403846153846153) internal successors, (2091), 1566 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2091 transitions. [2023-12-21 13:28:27,975 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2091 transitions. Word has length 63 [2023-12-21 13:28:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:27,976 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2091 transitions. [2023-12-21 13:28:27,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2091 transitions. [2023-12-21 13:28:27,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-21 13:28:27,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:27,980 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] [2023-12-21 13:28:27,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:28:27,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:27,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1542392687, now seen corresponding path program 1 times [2023-12-21 13:28:27,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:27,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679915328] [2023-12-21 13:28:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:27,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:28,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679915328] [2023-12-21 13:28:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679915328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:28,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:28:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886070906] [2023-12-21 13:28:28,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:28,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:28:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:28:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:28:28,165 INFO L87 Difference]: Start difference. First operand 1567 states and 2091 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 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) [2023-12-21 13:28:28,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:28,709 INFO L93 Difference]: Finished difference Result 3041 states and 4183 transitions. [2023-12-21 13:28:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:28:28,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 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 [2023-12-21 13:28:28,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:28,715 INFO L225 Difference]: With dead ends: 3041 [2023-12-21 13:28:28,715 INFO L226 Difference]: Without dead ends: 1782 [2023-12-21 13:28:28,716 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 [2023-12-21 13:28:28,717 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 3665 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:28,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3665 Valid, 832 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:28:28,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2023-12-21 13:28:28,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1774. [2023-12-21 13:28:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1767 states have (on average 1.3887945670628183) internal successors, (2454), 1773 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2454 transitions. [2023-12-21 13:28:28,748 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2454 transitions. Word has length 63 [2023-12-21 13:28:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:28,748 INFO L495 AbstractCegarLoop]: Abstraction has 1774 states and 2454 transitions. [2023-12-21 13:28:28,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 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) [2023-12-21 13:28:28,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2454 transitions. [2023-12-21 13:28:28,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 13:28:28,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:28,751 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] [2023-12-21 13:28:28,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:28:28,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:28,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:28,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1152487412, now seen corresponding path program 1 times [2023-12-21 13:28:28,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:28,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169205501] [2023-12-21 13:28:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:28,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:28,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:28,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169205501] [2023-12-21 13:28:28,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169205501] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:28,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:28,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:28,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251044052] [2023-12-21 13:28:28,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:28,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:28,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:28,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:28,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:28,832 INFO L87 Difference]: Start difference. First operand 1774 states and 2454 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:28,908 INFO L93 Difference]: Finished difference Result 3468 states and 4870 transitions. [2023-12-21 13:28:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:28,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-21 13:28:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:28,918 INFO L225 Difference]: With dead ends: 3468 [2023-12-21 13:28:28,919 INFO L226 Difference]: Without dead ends: 2488 [2023-12-21 13:28:28,922 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 [2023-12-21 13:28:28,924 INFO L413 NwaCegarLoop]: 1419 mSDtfsCounter, 897 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:28,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2136 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2023-12-21 13:28:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2476. [2023-12-21 13:28:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2469 states have (on average 1.374645605508303) internal successors, (3394), 2475 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3394 transitions. [2023-12-21 13:28:28,967 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3394 transitions. Word has length 64 [2023-12-21 13:28:28,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:28,970 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3394 transitions. [2023-12-21 13:28:28,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3394 transitions. [2023-12-21 13:28:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 13:28:28,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:28,974 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] [2023-12-21 13:28:28,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:28:28,974 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:28,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash -998210018, now seen corresponding path program 1 times [2023-12-21 13:28:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:28,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154845749] [2023-12-21 13:28:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:28,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:29,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:29,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154845749] [2023-12-21 13:28:29,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154845749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:29,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:29,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:28:29,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580391269] [2023-12-21 13:28:29,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:29,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:28:29,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:28:29,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:28:29,114 INFO L87 Difference]: Start difference. First operand 2476 states and 3394 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2023-12-21 13:28:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:29,530 INFO L93 Difference]: Finished difference Result 4727 states and 6562 transitions. [2023-12-21 13:28:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:28:29,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 [2023-12-21 13:28:29,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:29,537 INFO L225 Difference]: With dead ends: 4727 [2023-12-21 13:28:29,537 INFO L226 Difference]: Without dead ends: 2855 [2023-12-21 13:28:29,540 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 [2023-12-21 13:28:29,541 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3060 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:29,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 694 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:28:29,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2023-12-21 13:28:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2841. [2023-12-21 13:28:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2834 states have (on average 1.3662667607621737) internal successors, (3872), 2840 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3872 transitions. [2023-12-21 13:28:29,584 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3872 transitions. Word has length 64 [2023-12-21 13:28:29,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:29,584 INFO L495 AbstractCegarLoop]: Abstraction has 2841 states and 3872 transitions. [2023-12-21 13:28:29,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2023-12-21 13:28:29,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3872 transitions. [2023-12-21 13:28:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 13:28:29,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:29,587 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] [2023-12-21 13:28:29,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:28:29,587 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:29,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1760122824, now seen corresponding path program 1 times [2023-12-21 13:28:29,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:29,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315414800] [2023-12-21 13:28:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:29,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:29,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:29,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315414800] [2023-12-21 13:28:29,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315414800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:29,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:29,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:28:29,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495291587] [2023-12-21 13:28:29,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:29,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:28:29,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:29,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:28:29,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:28:29,679 INFO L87 Difference]: Start difference. First operand 2841 states and 3872 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2023-12-21 13:28:30,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:30,008 INFO L93 Difference]: Finished difference Result 5891 states and 8171 transitions. [2023-12-21 13:28:30,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:28:30,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 [2023-12-21 13:28:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:30,022 INFO L225 Difference]: With dead ends: 5891 [2023-12-21 13:28:30,022 INFO L226 Difference]: Without dead ends: 3483 [2023-12-21 13:28:30,026 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 [2023-12-21 13:28:30,028 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 2806 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:30,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 662 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:28:30,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2023-12-21 13:28:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3466. [2023-12-21 13:28:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3466 states, 3459 states have (on average 1.3787221740387394) internal successors, (4769), 3465 states have internal predecessors, (4769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:30,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 4769 transitions. [2023-12-21 13:28:30,088 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 4769 transitions. Word has length 64 [2023-12-21 13:28:30,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:30,089 INFO L495 AbstractCegarLoop]: Abstraction has 3466 states and 4769 transitions. [2023-12-21 13:28:30,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2023-12-21 13:28:30,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 4769 transitions. [2023-12-21 13:28:30,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-21 13:28:30,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:30,093 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] [2023-12-21 13:28:30,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:28:30,093 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:30,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:30,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1332635061, now seen corresponding path program 1 times [2023-12-21 13:28:30,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:30,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775257392] [2023-12-21 13:28:30,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:30,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:30,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:30,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775257392] [2023-12-21 13:28:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775257392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:30,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:28:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468177092] [2023-12-21 13:28:30,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:30,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:28:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:30,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:28:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:28:30,253 INFO L87 Difference]: Start difference. First operand 3466 states and 4769 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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) [2023-12-21 13:28:30,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:30,534 INFO L93 Difference]: Finished difference Result 8768 states and 12277 transitions. [2023-12-21 13:28:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:28:30,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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 [2023-12-21 13:28:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:30,548 INFO L225 Difference]: With dead ends: 8768 [2023-12-21 13:28:30,548 INFO L226 Difference]: Without dead ends: 5540 [2023-12-21 13:28:30,553 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 [2023-12-21 13:28:30,553 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2468 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:30,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 591 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:28:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2023-12-21 13:28:30,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5532. [2023-12-21 13:28:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5525 states have (on average 1.397285067873303) internal successors, (7720), 5531 states have internal predecessors, (7720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 7720 transitions. [2023-12-21 13:28:30,636 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 7720 transitions. Word has length 65 [2023-12-21 13:28:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:30,636 INFO L495 AbstractCegarLoop]: Abstraction has 5532 states and 7720 transitions. [2023-12-21 13:28:30,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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) [2023-12-21 13:28:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 7720 transitions. [2023-12-21 13:28:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 13:28:30,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:30,640 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] [2023-12-21 13:28:30,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:28:30,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:30,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:30,641 INFO L85 PathProgramCache]: Analyzing trace with hash -254635222, now seen corresponding path program 1 times [2023-12-21 13:28:30,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:30,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122343949] [2023-12-21 13:28:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:30,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:30,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122343949] [2023-12-21 13:28:30,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122343949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:30,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:30,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592068860] [2023-12-21 13:28:30,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:30,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:30,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:30,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:30,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:30,693 INFO L87 Difference]: Start difference. First operand 5532 states and 7720 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:30,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:30,741 INFO L93 Difference]: Finished difference Result 12130 states and 17010 transitions. [2023-12-21 13:28:30,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:30,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-21 13:28:30,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:30,760 INFO L225 Difference]: With dead ends: 12130 [2023-12-21 13:28:30,760 INFO L226 Difference]: Without dead ends: 7616 [2023-12-21 13:28:30,767 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 [2023-12-21 13:28:30,768 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 498 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:30,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1359 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:30,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7616 states. [2023-12-21 13:28:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7616 to 7581. [2023-12-21 13:28:30,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7581 states, 7574 states have (on average 1.3721943490889887) internal successors, (10393), 7580 states have internal predecessors, (10393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:30,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7581 states to 7581 states and 10393 transitions. [2023-12-21 13:28:30,887 INFO L78 Accepts]: Start accepts. Automaton has 7581 states and 10393 transitions. Word has length 66 [2023-12-21 13:28:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:30,887 INFO L495 AbstractCegarLoop]: Abstraction has 7581 states and 10393 transitions. [2023-12-21 13:28:30,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 7581 states and 10393 transitions. [2023-12-21 13:28:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-21 13:28:30,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:30,893 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] [2023-12-21 13:28:30,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:28:30,893 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:30,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:30,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2145810939, now seen corresponding path program 1 times [2023-12-21 13:28:30,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:30,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356800222] [2023-12-21 13:28:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:30,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:31,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:31,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356800222] [2023-12-21 13:28:31,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356800222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:31,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805407885] [2023-12-21 13:28:31,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:31,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:28:31,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:28:31,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:28:31,034 INFO L87 Difference]: Start difference. First operand 7581 states and 10393 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:31,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:31,672 INFO L93 Difference]: Finished difference Result 37660 states and 52822 transitions. [2023-12-21 13:28:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:28:31,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2023-12-21 13:28:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:31,725 INFO L225 Difference]: With dead ends: 37660 [2023-12-21 13:28:31,725 INFO L226 Difference]: Without dead ends: 34009 [2023-12-21 13:28:31,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:28:31,738 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 5101 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:31,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 1131 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:28:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34009 states. [2023-12-21 13:28:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34009 to 7649. [2023-12-21 13:28:32,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 7642 states have (on average 1.3714996074326093) internal successors, (10481), 7648 states have internal predecessors, (10481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:32,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 10481 transitions. [2023-12-21 13:28:32,055 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 10481 transitions. Word has length 67 [2023-12-21 13:28:32,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:32,055 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 10481 transitions. [2023-12-21 13:28:32,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:32,055 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 10481 transitions. [2023-12-21 13:28:32,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-21 13:28:32,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:32,061 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] [2023-12-21 13:28:32,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:28:32,061 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:32,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:32,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2044326195, now seen corresponding path program 1 times [2023-12-21 13:28:32,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:32,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524474672] [2023-12-21 13:28:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:32,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:32,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:32,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524474672] [2023-12-21 13:28:32,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524474672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:32,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:32,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:32,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772117466] [2023-12-21 13:28:32,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:32,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:28:32,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:32,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:28:32,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:28:32,169 INFO L87 Difference]: Start difference. First operand 7649 states and 10481 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:32,893 INFO L93 Difference]: Finished difference Result 33563 states and 46914 transitions. [2023-12-21 13:28:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:28:32,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2023-12-21 13:28:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:32,942 INFO L225 Difference]: With dead ends: 33563 [2023-12-21 13:28:32,943 INFO L226 Difference]: Without dead ends: 30094 [2023-12-21 13:28:32,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:28:32,957 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 4644 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4644 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:32,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4644 Valid, 1117 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:28:32,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30094 states. [2023-12-21 13:28:33,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30094 to 7771. [2023-12-21 13:28:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7771 states, 7764 states have (on average 1.3708140133951572) internal successors, (10643), 7770 states have internal predecessors, (10643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7771 states to 7771 states and 10643 transitions. [2023-12-21 13:28:33,262 INFO L78 Accepts]: Start accepts. Automaton has 7771 states and 10643 transitions. Word has length 67 [2023-12-21 13:28:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:33,262 INFO L495 AbstractCegarLoop]: Abstraction has 7771 states and 10643 transitions. [2023-12-21 13:28:33,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 7771 states and 10643 transitions. [2023-12-21 13:28:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-21 13:28:33,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:33,268 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] [2023-12-21 13:28:33,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:28:33,268 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:33,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1189983517, now seen corresponding path program 1 times [2023-12-21 13:28:33,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:33,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002516037] [2023-12-21 13:28:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:33,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002516037] [2023-12-21 13:28:33,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002516037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:33,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:33,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:33,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756583502] [2023-12-21 13:28:33,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:33,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:28:33,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:28:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:28:33,409 INFO L87 Difference]: Start difference. First operand 7771 states and 10643 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:34,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:34,114 INFO L93 Difference]: Finished difference Result 29403 states and 40967 transitions. [2023-12-21 13:28:34,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:28:34,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2023-12-21 13:28:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:34,154 INFO L225 Difference]: With dead ends: 29403 [2023-12-21 13:28:34,154 INFO L226 Difference]: Without dead ends: 26198 [2023-12-21 13:28:34,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:28:34,167 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 3377 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:34,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 1243 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:28:34,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26198 states. [2023-12-21 13:28:34,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26198 to 7842. [2023-12-21 13:28:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7842 states, 7835 states have (on average 1.3710274409700063) internal successors, (10742), 7841 states have internal predecessors, (10742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 10742 transitions. [2023-12-21 13:28:34,381 INFO L78 Accepts]: Start accepts. Automaton has 7842 states and 10742 transitions. Word has length 67 [2023-12-21 13:28:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:34,381 INFO L495 AbstractCegarLoop]: Abstraction has 7842 states and 10742 transitions. [2023-12-21 13:28:34,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7842 states and 10742 transitions. [2023-12-21 13:28:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-21 13:28:34,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:34,387 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] [2023-12-21 13:28:34,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:28:34,387 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:34,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash -92881536, now seen corresponding path program 1 times [2023-12-21 13:28:34,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:34,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46659263] [2023-12-21 13:28:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:34,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:34,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46659263] [2023-12-21 13:28:34,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46659263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:34,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:34,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:34,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796414495] [2023-12-21 13:28:34,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:34,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:28:34,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:34,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:28:34,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:28:34,543 INFO L87 Difference]: Start difference. First operand 7842 states and 10742 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:35,071 INFO L93 Difference]: Finished difference Result 26991 states and 37396 transitions. [2023-12-21 13:28:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:28:35,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2023-12-21 13:28:35,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:35,101 INFO L225 Difference]: With dead ends: 26991 [2023-12-21 13:28:35,101 INFO L226 Difference]: Without dead ends: 23320 [2023-12-21 13:28:35,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:28:35,113 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 4495 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:35,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 1070 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:28:35,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23320 states. [2023-12-21 13:28:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23320 to 7877. [2023-12-21 13:28:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7877 states, 7870 states have (on average 1.3706480304955528) internal successors, (10787), 7876 states have internal predecessors, (10787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7877 states to 7877 states and 10787 transitions. [2023-12-21 13:28:35,293 INFO L78 Accepts]: Start accepts. Automaton has 7877 states and 10787 transitions. Word has length 67 [2023-12-21 13:28:35,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:35,293 INFO L495 AbstractCegarLoop]: Abstraction has 7877 states and 10787 transitions. [2023-12-21 13:28:35,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2023-12-21 13:28:35,294 INFO L276 IsEmpty]: Start isEmpty. Operand 7877 states and 10787 transitions. [2023-12-21 13:28:35,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-21 13:28:35,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:35,300 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] [2023-12-21 13:28:35,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:28:35,300 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:35,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:35,300 INFO L85 PathProgramCache]: Analyzing trace with hash 680595235, now seen corresponding path program 1 times [2023-12-21 13:28:35,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:35,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623960315] [2023-12-21 13:28:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:35,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:35,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:35,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623960315] [2023-12-21 13:28:35,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623960315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:35,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:35,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032014227] [2023-12-21 13:28:35,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:35,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:28:35,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:35,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:28:35,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:28:35,498 INFO L87 Difference]: Start difference. First operand 7877 states and 10787 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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) [2023-12-21 13:28:36,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:36,134 INFO L93 Difference]: Finished difference Result 19994 states and 27816 transitions. [2023-12-21 13:28:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:28:36,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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 [2023-12-21 13:28:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:36,156 INFO L225 Difference]: With dead ends: 19994 [2023-12-21 13:28:36,156 INFO L226 Difference]: Without dead ends: 14481 [2023-12-21 13:28:36,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:28:36,166 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 2916 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:36,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2916 Valid, 1484 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:28:36,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14481 states. [2023-12-21 13:28:36,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14481 to 7571. [2023-12-21 13:28:36,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7571 states, 7564 states have (on average 1.3688524590163935) internal successors, (10354), 7570 states have internal predecessors, (10354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:36,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7571 states to 7571 states and 10354 transitions. [2023-12-21 13:28:36,279 INFO L78 Accepts]: Start accepts. Automaton has 7571 states and 10354 transitions. Word has length 68 [2023-12-21 13:28:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:36,279 INFO L495 AbstractCegarLoop]: Abstraction has 7571 states and 10354 transitions. [2023-12-21 13:28:36,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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) [2023-12-21 13:28:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 7571 states and 10354 transitions. [2023-12-21 13:28:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-21 13:28:36,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:36,284 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] [2023-12-21 13:28:36,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:28:36,284 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:36,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:36,285 INFO L85 PathProgramCache]: Analyzing trace with hash 718017329, now seen corresponding path program 1 times [2023-12-21 13:28:36,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:36,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174472655] [2023-12-21 13:28:36,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:36,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:36,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:36,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174472655] [2023-12-21 13:28:36,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174472655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:36,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:36,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:36,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698948102] [2023-12-21 13:28:36,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:36,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:36,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:36,549 INFO L87 Difference]: Start difference. First operand 7571 states and 10354 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2023-12-21 13:28:37,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:37,466 INFO L93 Difference]: Finished difference Result 24650 states and 34491 transitions. [2023-12-21 13:28:37,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:28:37,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 [2023-12-21 13:28:37,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:37,490 INFO L225 Difference]: With dead ends: 24650 [2023-12-21 13:28:37,490 INFO L226 Difference]: Without dead ends: 19595 [2023-12-21 13:28:37,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:28:37,501 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 2624 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2624 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:37,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2624 Valid, 2595 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:28:37,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19595 states. [2023-12-21 13:28:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19595 to 7436. [2023-12-21 13:28:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 7429 states have (on average 1.3682864450127876) internal successors, (10165), 7435 states have internal predecessors, (10165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 10165 transitions. [2023-12-21 13:28:37,657 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 10165 transitions. Word has length 68 [2023-12-21 13:28:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:37,657 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 10165 transitions. [2023-12-21 13:28:37,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2023-12-21 13:28:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 10165 transitions. [2023-12-21 13:28:37,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-21 13:28:37,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:37,662 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] [2023-12-21 13:28:37,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:28:37,662 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:37,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:37,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2097490812, now seen corresponding path program 1 times [2023-12-21 13:28:37,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:37,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215157866] [2023-12-21 13:28:37,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:37,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:37,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:37,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215157866] [2023-12-21 13:28:37,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215157866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:37,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:37,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:37,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628794250] [2023-12-21 13:28:37,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:37,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:37,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:37,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:37,870 INFO L87 Difference]: Start difference. First operand 7436 states and 10165 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2023-12-21 13:28:38,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:38,667 INFO L93 Difference]: Finished difference Result 24343 states and 34066 transitions. [2023-12-21 13:28:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:28:38,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 [2023-12-21 13:28:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:38,690 INFO L225 Difference]: With dead ends: 24343 [2023-12-21 13:28:38,690 INFO L226 Difference]: Without dead ends: 19512 [2023-12-21 13:28:38,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:28:38,700 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 2872 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:38,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 2158 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:28:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19512 states. [2023-12-21 13:28:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19512 to 7412. [2023-12-21 13:28:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7412 states, 7405 states have (on average 1.3674544226873735) internal successors, (10126), 7411 states have internal predecessors, (10126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7412 states to 7412 states and 10126 transitions. [2023-12-21 13:28:38,864 INFO L78 Accepts]: Start accepts. Automaton has 7412 states and 10126 transitions. Word has length 68 [2023-12-21 13:28:38,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:38,864 INFO L495 AbstractCegarLoop]: Abstraction has 7412 states and 10126 transitions. [2023-12-21 13:28:38,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2023-12-21 13:28:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 7412 states and 10126 transitions. [2023-12-21 13:28:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-21 13:28:38,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:38,868 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] [2023-12-21 13:28:38,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:28:38,868 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:38,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:38,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2111634662, now seen corresponding path program 1 times [2023-12-21 13:28:38,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:38,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814760450] [2023-12-21 13:28:38,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:38,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:39,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814760450] [2023-12-21 13:28:39,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814760450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:39,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:39,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:28:39,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285842848] [2023-12-21 13:28:39,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:39,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:28:39,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:39,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:28:39,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:28:39,116 INFO L87 Difference]: Start difference. First operand 7412 states and 10126 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2023-12-21 13:28:39,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:39,964 INFO L93 Difference]: Finished difference Result 24148 states and 33783 transitions. [2023-12-21 13:28:39,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:28:39,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 [2023-12-21 13:28:39,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:39,984 INFO L225 Difference]: With dead ends: 24148 [2023-12-21 13:28:39,984 INFO L226 Difference]: Without dead ends: 19350 [2023-12-21 13:28:39,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:28:39,996 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 2415 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:39,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 2629 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:28:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2023-12-21 13:28:40,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 7403. [2023-12-21 13:28:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7403 states, 7396 states have (on average 1.3668199026500811) internal successors, (10109), 7402 states have internal predecessors, (10109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7403 states to 7403 states and 10109 transitions. [2023-12-21 13:28:40,148 INFO L78 Accepts]: Start accepts. Automaton has 7403 states and 10109 transitions. Word has length 68 [2023-12-21 13:28:40,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:40,148 INFO L495 AbstractCegarLoop]: Abstraction has 7403 states and 10109 transitions. [2023-12-21 13:28:40,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2023-12-21 13:28:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 7403 states and 10109 transitions. [2023-12-21 13:28:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:28:40,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:40,153 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] [2023-12-21 13:28:40,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:28:40,153 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:40,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:40,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1885132627, now seen corresponding path program 1 times [2023-12-21 13:28:40,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:40,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057390739] [2023-12-21 13:28:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:40,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:40,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:40,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057390739] [2023-12-21 13:28:40,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057390739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:40,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:40,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:28:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418634443] [2023-12-21 13:28:40,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:40,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:28:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:28:40,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:28:40,742 INFO L87 Difference]: Start difference. First operand 7403 states and 10109 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:42,611 INFO L93 Difference]: Finished difference Result 61048 states and 86155 transitions. [2023-12-21 13:28:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 13:28:42,611 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-21 13:28:42,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:42,679 INFO L225 Difference]: With dead ends: 61048 [2023-12-21 13:28:42,679 INFO L226 Difference]: Without dead ends: 56253 [2023-12-21 13:28:42,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 13:28:42,700 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 5553 mSDsluCounter, 6354 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 7170 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:42,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5553 Valid, 7170 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:28:42,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56253 states. [2023-12-21 13:28:43,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56253 to 7389. [2023-12-21 13:28:43,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7389 states, 7383 states have (on average 1.3658404442638494) internal successors, (10084), 7388 states have internal predecessors, (10084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7389 states to 7389 states and 10084 transitions. [2023-12-21 13:28:43,029 INFO L78 Accepts]: Start accepts. Automaton has 7389 states and 10084 transitions. Word has length 69 [2023-12-21 13:28:43,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:43,029 INFO L495 AbstractCegarLoop]: Abstraction has 7389 states and 10084 transitions. [2023-12-21 13:28:43,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:43,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7389 states and 10084 transitions. [2023-12-21 13:28:43,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:28:43,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:43,034 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] [2023-12-21 13:28:43,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:28:43,034 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:43,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:43,034 INFO L85 PathProgramCache]: Analyzing trace with hash -578802053, now seen corresponding path program 1 times [2023-12-21 13:28:43,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:43,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964724213] [2023-12-21 13:28:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:43,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:43,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964724213] [2023-12-21 13:28:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964724213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:43,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:43,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 13:28:43,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361403881] [2023-12-21 13:28:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:43,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:28:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:28:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:28:43,388 INFO L87 Difference]: Start difference. First operand 7389 states and 10084 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:44,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:44,632 INFO L93 Difference]: Finished difference Result 45270 states and 63571 transitions. [2023-12-21 13:28:44,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 13:28:44,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-21 13:28:44,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:44,679 INFO L225 Difference]: With dead ends: 45270 [2023-12-21 13:28:44,679 INFO L226 Difference]: Without dead ends: 40213 [2023-12-21 13:28:44,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2023-12-21 13:28:44,698 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 6536 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 4580 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:44,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6536 Valid, 4580 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:28:44,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40213 states. [2023-12-21 13:28:44,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40213 to 7140. [2023-12-21 13:28:44,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7140 states, 7135 states have (on average 1.3628591450595655) internal successors, (9724), 7139 states have internal predecessors, (9724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 9724 transitions. [2023-12-21 13:28:44,932 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 9724 transitions. Word has length 69 [2023-12-21 13:28:44,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:44,932 INFO L495 AbstractCegarLoop]: Abstraction has 7140 states and 9724 transitions. [2023-12-21 13:28:44,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 9724 transitions. [2023-12-21 13:28:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:28:44,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:44,937 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] [2023-12-21 13:28:44,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:28:44,937 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:44,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:44,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1227479287, now seen corresponding path program 1 times [2023-12-21 13:28:44,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:44,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788706048] [2023-12-21 13:28:44,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:44,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:44,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:44,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:44,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788706048] [2023-12-21 13:28:44,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788706048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:44,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:44,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:44,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837520813] [2023-12-21 13:28:44,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:44,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:44,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:44,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:44,983 INFO L87 Difference]: Start difference. First operand 7140 states and 9724 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:45,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:45,016 INFO L93 Difference]: Finished difference Result 10862 states and 14916 transitions. [2023-12-21 13:28:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:45,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-21 13:28:45,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:45,023 INFO L225 Difference]: With dead ends: 10862 [2023-12-21 13:28:45,023 INFO L226 Difference]: Without dead ends: 7146 [2023-12-21 13:28:45,027 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 [2023-12-21 13:28:45,027 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 427 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1354 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 [2023-12-21 13:28:45,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1354 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7146 states. [2023-12-21 13:28:45,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7146 to 7140. [2023-12-21 13:28:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7140 states, 7135 states have (on average 1.3531885073580938) internal successors, (9655), 7139 states have internal predecessors, (9655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 9655 transitions. [2023-12-21 13:28:45,093 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 9655 transitions. Word has length 69 [2023-12-21 13:28:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:45,094 INFO L495 AbstractCegarLoop]: Abstraction has 7140 states and 9655 transitions. [2023-12-21 13:28:45,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 9655 transitions. [2023-12-21 13:28:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-21 13:28:45,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:45,098 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] [2023-12-21 13:28:45,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:28:45,098 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:45,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:45,099 INFO L85 PathProgramCache]: Analyzing trace with hash -360349785, now seen corresponding path program 1 times [2023-12-21 13:28:45,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:45,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239719826] [2023-12-21 13:28:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:45,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:45,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:45,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239719826] [2023-12-21 13:28:45,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239719826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:45,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:45,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:28:45,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530205977] [2023-12-21 13:28:45,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:45,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:28:45,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:28:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:28:45,488 INFO L87 Difference]: Start difference. First operand 7140 states and 9655 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:46,366 INFO L93 Difference]: Finished difference Result 30020 states and 41667 transitions. [2023-12-21 13:28:46,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:28:46,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-21 13:28:46,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:46,395 INFO L225 Difference]: With dead ends: 30020 [2023-12-21 13:28:46,395 INFO L226 Difference]: Without dead ends: 24960 [2023-12-21 13:28:46,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2023-12-21 13:28:46,405 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 4683 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 5296 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:46,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 5296 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:28:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24960 states. [2023-12-21 13:28:46,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24960 to 6855. [2023-12-21 13:28:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6855 states, 6852 states have (on average 1.3544950379451255) internal successors, (9281), 6854 states have internal predecessors, (9281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6855 states to 6855 states and 9281 transitions. [2023-12-21 13:28:46,557 INFO L78 Accepts]: Start accepts. Automaton has 6855 states and 9281 transitions. Word has length 69 [2023-12-21 13:28:46,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:46,558 INFO L495 AbstractCegarLoop]: Abstraction has 6855 states and 9281 transitions. [2023-12-21 13:28:46,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 6855 states and 9281 transitions. [2023-12-21 13:28:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 13:28:46,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:46,562 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] [2023-12-21 13:28:46,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 13:28:46,562 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:46,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:46,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1045808869, now seen corresponding path program 1 times [2023-12-21 13:28:46,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:46,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120203045] [2023-12-21 13:28:46,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:46,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:46,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:46,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120203045] [2023-12-21 13:28:46,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120203045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:46,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:46,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:46,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037169310] [2023-12-21 13:28:46,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:46,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:46,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:46,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:46,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:46,606 INFO L87 Difference]: Start difference. First operand 6855 states and 9281 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:46,693 INFO L93 Difference]: Finished difference Result 13939 states and 19099 transitions. [2023-12-21 13:28:46,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:46,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-21 13:28:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:46,703 INFO L225 Difference]: With dead ends: 13939 [2023-12-21 13:28:46,704 INFO L226 Difference]: Without dead ends: 9714 [2023-12-21 13:28:46,709 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 [2023-12-21 13:28:46,710 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 380 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:46,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 524 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9714 states. [2023-12-21 13:28:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9714 to 9685. [2023-12-21 13:28:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9685 states, 9684 states have (on average 1.3751548946716232) internal successors, (13317), 9684 states have internal predecessors, (13317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:46,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9685 states to 9685 states and 13317 transitions. [2023-12-21 13:28:46,805 INFO L78 Accepts]: Start accepts. Automaton has 9685 states and 13317 transitions. Word has length 71 [2023-12-21 13:28:46,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:46,805 INFO L495 AbstractCegarLoop]: Abstraction has 9685 states and 13317 transitions. [2023-12-21 13:28:46,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:46,805 INFO L276 IsEmpty]: Start isEmpty. Operand 9685 states and 13317 transitions. [2023-12-21 13:28:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:28:46,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:46,818 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] [2023-12-21 13:28:46,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 13:28:46,818 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:46,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:46,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1800555164, now seen corresponding path program 1 times [2023-12-21 13:28:46,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:46,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920058881] [2023-12-21 13:28:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:46,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:46,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:46,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920058881] [2023-12-21 13:28:46,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920058881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:46,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:46,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:46,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435852973] [2023-12-21 13:28:46,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:46,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:28:46,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:46,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:28:46,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:46,900 INFO L87 Difference]: Start difference. First operand 9685 states and 13317 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:47,048 INFO L93 Difference]: Finished difference Result 43787 states and 61664 transitions. [2023-12-21 13:28:47,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:28:47,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2023-12-21 13:28:47,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:47,091 INFO L225 Difference]: With dead ends: 43787 [2023-12-21 13:28:47,091 INFO L226 Difference]: Without dead ends: 35928 [2023-12-21 13:28:47,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:28:47,108 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 2043 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:47,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 1216 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:47,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35928 states. [2023-12-21 13:28:47,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35928 to 17542. [2023-12-21 13:28:47,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17542 states, 17541 states have (on average 1.3789977766375918) internal successors, (24189), 17541 states have internal predecessors, (24189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17542 states to 17542 states and 24189 transitions. [2023-12-21 13:28:47,392 INFO L78 Accepts]: Start accepts. Automaton has 17542 states and 24189 transitions. Word has length 85 [2023-12-21 13:28:47,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:47,392 INFO L495 AbstractCegarLoop]: Abstraction has 17542 states and 24189 transitions. [2023-12-21 13:28:47,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,392 INFO L276 IsEmpty]: Start isEmpty. Operand 17542 states and 24189 transitions. [2023-12-21 13:28:47,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-21 13:28:47,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:47,404 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] [2023-12-21 13:28:47,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 13:28:47,404 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:47,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:47,404 INFO L85 PathProgramCache]: Analyzing trace with hash -792261063, now seen corresponding path program 1 times [2023-12-21 13:28:47,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:47,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135013806] [2023-12-21 13:28:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:47,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:47,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135013806] [2023-12-21 13:28:47,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135013806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:47,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:47,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:47,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392452978] [2023-12-21 13:28:47,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:47,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:28:47,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:47,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:28:47,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:47,506 INFO L87 Difference]: Start difference. First operand 17542 states and 24189 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:47,705 INFO L93 Difference]: Finished difference Result 28216 states and 38844 transitions. [2023-12-21 13:28:47,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:28:47,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2023-12-21 13:28:47,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:47,777 INFO L225 Difference]: With dead ends: 28216 [2023-12-21 13:28:47,778 INFO L226 Difference]: Without dead ends: 18622 [2023-12-21 13:28:47,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:47,782 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 1503 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:47,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1179 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:47,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18622 states. [2023-12-21 13:28:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18622 to 13366. [2023-12-21 13:28:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13366 states, 13365 states have (on average 1.3563786008230452) internal successors, (18128), 13365 states have internal predecessors, (18128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13366 states to 13366 states and 18128 transitions. [2023-12-21 13:28:47,928 INFO L78 Accepts]: Start accepts. Automaton has 13366 states and 18128 transitions. Word has length 86 [2023-12-21 13:28:47,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:47,929 INFO L495 AbstractCegarLoop]: Abstraction has 13366 states and 18128 transitions. [2023-12-21 13:28:47,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 13366 states and 18128 transitions. [2023-12-21 13:28:47,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-21 13:28:47,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:47,939 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] [2023-12-21 13:28:47,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 13:28:47,940 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:47,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash -148627709, now seen corresponding path program 1 times [2023-12-21 13:28:47,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:47,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434864395] [2023-12-21 13:28:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:48,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:48,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434864395] [2023-12-21 13:28:48,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434864395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:48,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:48,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863569248] [2023-12-21 13:28:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:48,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:48,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:48,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:48,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:48,017 INFO L87 Difference]: Start difference. First operand 13366 states and 18128 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:48,096 INFO L93 Difference]: Finished difference Result 36038 states and 49332 transitions. [2023-12-21 13:28:48,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:48,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2023-12-21 13:28:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:48,121 INFO L225 Difference]: With dead ends: 36038 [2023-12-21 13:28:48,122 INFO L226 Difference]: Without dead ends: 24332 [2023-12-21 13:28:48,135 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 [2023-12-21 13:28:48,136 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 154 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:48,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 881 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:48,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24332 states. [2023-12-21 13:28:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24332 to 22914. [2023-12-21 13:28:48,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22914 states, 22913 states have (on average 1.3585300920874612) internal successors, (31128), 22913 states have internal predecessors, (31128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:48,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22914 states to 22914 states and 31128 transitions. [2023-12-21 13:28:48,370 INFO L78 Accepts]: Start accepts. Automaton has 22914 states and 31128 transitions. Word has length 87 [2023-12-21 13:28:48,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:48,370 INFO L495 AbstractCegarLoop]: Abstraction has 22914 states and 31128 transitions. [2023-12-21 13:28:48,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:48,371 INFO L276 IsEmpty]: Start isEmpty. Operand 22914 states and 31128 transitions. [2023-12-21 13:28:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-21 13:28:48,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:48,379 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] [2023-12-21 13:28:48,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 13:28:48,380 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:48,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:48,380 INFO L85 PathProgramCache]: Analyzing trace with hash 751154240, now seen corresponding path program 1 times [2023-12-21 13:28:48,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:48,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52666986] [2023-12-21 13:28:48,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:48,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:48,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:48,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:48,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52666986] [2023-12-21 13:28:48,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52666986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:48,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:48,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:48,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625877499] [2023-12-21 13:28:48,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:48,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:48,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:48,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:48,453 INFO L87 Difference]: Start difference. First operand 22914 states and 31128 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:48,585 INFO L93 Difference]: Finished difference Result 64022 states and 87226 transitions. [2023-12-21 13:28:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:48,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-21 13:28:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:48,632 INFO L225 Difference]: With dead ends: 64022 [2023-12-21 13:28:48,632 INFO L226 Difference]: Without dead ends: 42768 [2023-12-21 13:28:48,653 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 [2023-12-21 13:28:48,654 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 142 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:48,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 870 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:48,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42768 states. [2023-12-21 13:28:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42768 to 39902. [2023-12-21 13:28:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39902 states, 39901 states have (on average 1.347535149495) internal successors, (53768), 39901 states have internal predecessors, (53768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39902 states to 39902 states and 53768 transitions. [2023-12-21 13:28:49,168 INFO L78 Accepts]: Start accepts. Automaton has 39902 states and 53768 transitions. Word has length 88 [2023-12-21 13:28:49,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:49,168 INFO L495 AbstractCegarLoop]: Abstraction has 39902 states and 53768 transitions. [2023-12-21 13:28:49,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:49,168 INFO L276 IsEmpty]: Start isEmpty. Operand 39902 states and 53768 transitions. [2023-12-21 13:28:49,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 13:28:49,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:49,186 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] [2023-12-21 13:28:49,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 13:28:49,186 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:49,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:49,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1561987552, now seen corresponding path program 1 times [2023-12-21 13:28:49,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:49,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461682537] [2023-12-21 13:28:49,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:49,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:49,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:49,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461682537] [2023-12-21 13:28:49,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461682537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:49,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:49,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:49,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944184583] [2023-12-21 13:28:49,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:49,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:49,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:49,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:49,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:49,231 INFO L87 Difference]: Start difference. First operand 39902 states and 53768 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:49,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:49,352 INFO L93 Difference]: Finished difference Result 55707 states and 75097 transitions. [2023-12-21 13:28:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:49,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-21 13:28:49,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:49,389 INFO L225 Difference]: With dead ends: 55707 [2023-12-21 13:28:49,389 INFO L226 Difference]: Without dead ends: 32512 [2023-12-21 13:28:49,408 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 [2023-12-21 13:28:49,409 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 241 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:49,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 915 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:49,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32512 states. [2023-12-21 13:28:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32512 to 32510. [2023-12-21 13:28:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32510 states, 32509 states have (on average 1.3404903257559444) internal successors, (43578), 32509 states have internal predecessors, (43578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:49,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32510 states to 32510 states and 43578 transitions. [2023-12-21 13:28:49,782 INFO L78 Accepts]: Start accepts. Automaton has 32510 states and 43578 transitions. Word has length 89 [2023-12-21 13:28:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:49,782 INFO L495 AbstractCegarLoop]: Abstraction has 32510 states and 43578 transitions. [2023-12-21 13:28:49,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 32510 states and 43578 transitions. [2023-12-21 13:28:49,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 13:28:49,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:49,789 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] [2023-12-21 13:28:49,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 13:28:49,790 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:49,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:49,790 INFO L85 PathProgramCache]: Analyzing trace with hash -939196063, now seen corresponding path program 1 times [2023-12-21 13:28:49,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:49,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271825608] [2023-12-21 13:28:49,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:49,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:49,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:49,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:49,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271825608] [2023-12-21 13:28:49,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271825608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:49,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:49,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:49,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925835295] [2023-12-21 13:28:49,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:49,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:49,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:49,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:49,874 INFO L87 Difference]: Start difference. First operand 32510 states and 43578 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:50,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:50,077 INFO L93 Difference]: Finished difference Result 92106 states and 123428 transitions. [2023-12-21 13:28:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:50,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-21 13:28:50,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:50,162 INFO L225 Difference]: With dead ends: 92106 [2023-12-21 13:28:50,163 INFO L226 Difference]: Without dead ends: 61208 [2023-12-21 13:28:50,196 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 [2023-12-21 13:28:50,197 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 129 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:50,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 852 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:50,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61208 states. [2023-12-21 13:28:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61208 to 56774. [2023-12-21 13:28:51,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56774 states, 56773 states have (on average 1.322776672009582) internal successors, (75098), 56773 states have internal predecessors, (75098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56774 states to 56774 states and 75098 transitions. [2023-12-21 13:28:51,312 INFO L78 Accepts]: Start accepts. Automaton has 56774 states and 75098 transitions. Word has length 89 [2023-12-21 13:28:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 56774 states and 75098 transitions. [2023-12-21 13:28:51,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 56774 states and 75098 transitions. [2023-12-21 13:28:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 13:28:51,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:51,318 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] [2023-12-21 13:28:51,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 13:28:51,318 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:51,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:51,319 INFO L85 PathProgramCache]: Analyzing trace with hash -731307534, now seen corresponding path program 1 times [2023-12-21 13:28:51,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:51,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343883313] [2023-12-21 13:28:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:51,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:51,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:51,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343883313] [2023-12-21 13:28:51,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343883313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:51,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:51,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:51,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594739544] [2023-12-21 13:28:51,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:51,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:51,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:51,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:51,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:51,366 INFO L87 Difference]: Start difference. First operand 56774 states and 75098 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2023-12-21 13:28:51,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:51,528 INFO L93 Difference]: Finished difference Result 69750 states and 92386 transitions. [2023-12-21 13:28:51,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:51,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 [2023-12-21 13:28:51,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:51,583 INFO L225 Difference]: With dead ends: 69750 [2023-12-21 13:28:51,583 INFO L226 Difference]: Without dead ends: 46417 [2023-12-21 13:28:51,766 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 [2023-12-21 13:28:51,767 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 198 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:51,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 883 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:51,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46417 states. [2023-12-21 13:28:52,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46417 to 46415. [2023-12-21 13:28:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46415 states, 46414 states have (on average 1.3234368940405912) internal successors, (61426), 46414 states have internal predecessors, (61426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46415 states to 46415 states and 61426 transitions. [2023-12-21 13:28:52,329 INFO L78 Accepts]: Start accepts. Automaton has 46415 states and 61426 transitions. Word has length 90 [2023-12-21 13:28:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:52,330 INFO L495 AbstractCegarLoop]: Abstraction has 46415 states and 61426 transitions. [2023-12-21 13:28:52,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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) [2023-12-21 13:28:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 46415 states and 61426 transitions. [2023-12-21 13:28:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 13:28:52,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:52,348 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] [2023-12-21 13:28:52,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 13:28:52,364 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:52,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:52,365 INFO L85 PathProgramCache]: Analyzing trace with hash 722639314, now seen corresponding path program 1 times [2023-12-21 13:28:52,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:52,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020611083] [2023-12-21 13:28:52,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:52,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:52,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:52,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020611083] [2023-12-21 13:28:52,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020611083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:52,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:52,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:52,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101499856] [2023-12-21 13:28:52,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:52,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:52,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:52,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:52,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:52,431 INFO L87 Difference]: Start difference. First operand 46415 states and 61426 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:52,926 INFO L93 Difference]: Finished difference Result 132467 states and 175076 transitions. [2023-12-21 13:28:52,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:52,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-21 13:28:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:53,074 INFO L225 Difference]: With dead ends: 132467 [2023-12-21 13:28:53,074 INFO L226 Difference]: Without dead ends: 87601 [2023-12-21 13:28:53,099 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 [2023-12-21 13:28:53,100 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 107 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:53,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 832 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:53,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87601 states. [2023-12-21 13:28:53,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87601 to 81967. [2023-12-21 13:28:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81967 states, 81966 states have (on average 1.3108118000146403) internal successors, (107442), 81966 states have internal predecessors, (107442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:54,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81967 states to 81967 states and 107442 transitions. [2023-12-21 13:28:54,146 INFO L78 Accepts]: Start accepts. Automaton has 81967 states and 107442 transitions. Word has length 91 [2023-12-21 13:28:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:54,147 INFO L495 AbstractCegarLoop]: Abstraction has 81967 states and 107442 transitions. [2023-12-21 13:28:54,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:54,147 INFO L276 IsEmpty]: Start isEmpty. Operand 81967 states and 107442 transitions. [2023-12-21 13:28:54,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:28:54,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:54,152 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] [2023-12-21 13:28:54,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 13:28:54,152 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:54,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:54,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1582250999, now seen corresponding path program 1 times [2023-12-21 13:28:54,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:54,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727409299] [2023-12-21 13:28:54,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:54,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:54,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:54,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727409299] [2023-12-21 13:28:54,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727409299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:54,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:54,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:28:54,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386341638] [2023-12-21 13:28:54,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:54,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:28:54,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:54,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:28:54,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:28:54,531 INFO L87 Difference]: Start difference. First operand 81967 states and 107442 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2023-12-21 13:28:55,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:55,167 INFO L93 Difference]: Finished difference Result 175115 states and 226725 transitions. [2023-12-21 13:28:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:28:55,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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 [2023-12-21 13:28:55,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:55,444 INFO L225 Difference]: With dead ends: 175115 [2023-12-21 13:28:55,445 INFO L226 Difference]: Without dead ends: 175113 [2023-12-21 13:28:55,484 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 [2023-12-21 13:28:55,484 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 453 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:55,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 2126 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:28:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175113 states. [2023-12-21 13:28:56,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175113 to 88207. [2023-12-21 13:28:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88207 states, 88206 states have (on average 1.2888238895313244) internal successors, (113682), 88206 states have internal predecessors, (113682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:28:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88207 states to 88207 states and 113682 transitions. [2023-12-21 13:28:56,916 INFO L78 Accepts]: Start accepts. Automaton has 88207 states and 113682 transitions. Word has length 93 [2023-12-21 13:28:56,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:28:56,916 INFO L495 AbstractCegarLoop]: Abstraction has 88207 states and 113682 transitions. [2023-12-21 13:28:56,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2023-12-21 13:28:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 88207 states and 113682 transitions. [2023-12-21 13:28:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 13:28:56,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:28:56,937 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] [2023-12-21 13:28:56,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 13:28:56,937 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:28:56,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:28:56,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1984722776, now seen corresponding path program 1 times [2023-12-21 13:28:56,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:28:56,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247630026] [2023-12-21 13:28:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:28:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:28:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:28:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:28:56,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:28:56,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247630026] [2023-12-21 13:28:56,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247630026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:28:56,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:28:56,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:28:56,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292491381] [2023-12-21 13:28:56,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:28:56,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:28:56,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:28:57,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:28:57,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:28:57,000 INFO L87 Difference]: Start difference. First operand 88207 states and 113682 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) [2023-12-21 13:28:57,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:28:57,934 INFO L93 Difference]: Finished difference Result 222379 states and 285180 transitions. [2023-12-21 13:28:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:28:57,934 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 [2023-12-21 13:28:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:28:58,194 INFO L225 Difference]: With dead ends: 222379 [2023-12-21 13:28:58,194 INFO L226 Difference]: Without dead ends: 135721 [2023-12-21 13:28:58,281 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 [2023-12-21 13:28:58,282 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 325 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:28:58,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 608 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:28:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135721 states. [2023-12-21 13:28:59,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135721 to 135719. [2023-12-21 13:28:59,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135719 states, 135718 states have (on average 1.2692936824886898) internal successors, (172266), 135718 states have internal predecessors, (172266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:00,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135719 states to 135719 states and 172266 transitions. [2023-12-21 13:29:00,163 INFO L78 Accepts]: Start accepts. Automaton has 135719 states and 172266 transitions. Word has length 94 [2023-12-21 13:29:00,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:00,164 INFO L495 AbstractCegarLoop]: Abstraction has 135719 states and 172266 transitions. [2023-12-21 13:29:00,164 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) [2023-12-21 13:29:00,164 INFO L276 IsEmpty]: Start isEmpty. Operand 135719 states and 172266 transitions. [2023-12-21 13:29:00,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 13:29:00,169 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:00,169 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] [2023-12-21 13:29:00,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 13:29:00,169 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:00,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:00,169 INFO L85 PathProgramCache]: Analyzing trace with hash -550444979, now seen corresponding path program 1 times [2023-12-21 13:29:00,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:00,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870015873] [2023-12-21 13:29:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:00,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:00,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:00,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870015873] [2023-12-21 13:29:00,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870015873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:00,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:00,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:00,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879266397] [2023-12-21 13:29:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:00,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:00,272 INFO L87 Difference]: Start difference. First operand 135719 states and 172266 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) [2023-12-21 13:29:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:01,047 INFO L93 Difference]: Finished difference Result 211169 states and 269191 transitions. [2023-12-21 13:29:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:01,048 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 [2023-12-21 13:29:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:01,289 INFO L225 Difference]: With dead ends: 211169 [2023-12-21 13:29:01,289 INFO L226 Difference]: Without dead ends: 181755 [2023-12-21 13:29:01,374 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 [2023-12-21 13:29:01,374 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1576 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:01,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 1327 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:01,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181755 states. [2023-12-21 13:29:02,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181755 to 155875. [2023-12-21 13:29:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155875 states, 155874 states have (on average 1.2671901664164646) internal successors, (197522), 155874 states have internal predecessors, (197522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155875 states to 155875 states and 197522 transitions. [2023-12-21 13:29:03,624 INFO L78 Accepts]: Start accepts. Automaton has 155875 states and 197522 transitions. Word has length 96 [2023-12-21 13:29:03,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:03,624 INFO L495 AbstractCegarLoop]: Abstraction has 155875 states and 197522 transitions. [2023-12-21 13:29:03,624 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) [2023-12-21 13:29:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 155875 states and 197522 transitions. [2023-12-21 13:29:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 13:29:03,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:03,630 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] [2023-12-21 13:29:03,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 13:29:03,631 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:03,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash -840278662, now seen corresponding path program 1 times [2023-12-21 13:29:03,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:03,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047781191] [2023-12-21 13:29:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:03,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:03,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:03,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047781191] [2023-12-21 13:29:03,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047781191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:03,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:03,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:29:03,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937755732] [2023-12-21 13:29:03,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:03,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:29:03,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:03,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:29:03,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:29:03,676 INFO L87 Difference]: Start difference. First operand 155875 states and 197522 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) [2023-12-21 13:29:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:04,623 INFO L93 Difference]: Finished difference Result 309320 states and 391948 transitions. [2023-12-21 13:29:04,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:29:04,624 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 [2023-12-21 13:29:04,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:04,948 INFO L225 Difference]: With dead ends: 309320 [2023-12-21 13:29:04,949 INFO L226 Difference]: Without dead ends: 220023 [2023-12-21 13:29:05,027 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 [2023-12-21 13:29:05,028 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 375 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:05,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 565 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:29:05,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220023 states. [2023-12-21 13:29:07,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220023 to 153483. [2023-12-21 13:29:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153483 states, 153482 states have (on average 1.2642003622574634) internal successors, (194032), 153482 states have internal predecessors, (194032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153483 states to 153483 states and 194032 transitions. [2023-12-21 13:29:07,499 INFO L78 Accepts]: Start accepts. Automaton has 153483 states and 194032 transitions. Word has length 97 [2023-12-21 13:29:07,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:07,499 INFO L495 AbstractCegarLoop]: Abstraction has 153483 states and 194032 transitions. [2023-12-21 13:29:07,499 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) [2023-12-21 13:29:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 153483 states and 194032 transitions. [2023-12-21 13:29:07,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 13:29:07,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:07,505 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, 1] [2023-12-21 13:29:07,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 13:29:07,505 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:07,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:07,505 INFO L85 PathProgramCache]: Analyzing trace with hash 426902638, now seen corresponding path program 1 times [2023-12-21 13:29:07,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:07,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121601210] [2023-12-21 13:29:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:07,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:07,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:07,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121601210] [2023-12-21 13:29:07,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121601210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:07,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:07,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:29:07,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736960421] [2023-12-21 13:29:07,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:07,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:29:07,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:07,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:29:07,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:29:07,619 INFO L87 Difference]: Start difference. First operand 153483 states and 194032 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:08,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:08,715 INFO L93 Difference]: Finished difference Result 216889 states and 275229 transitions. [2023-12-21 13:29:08,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:29:08,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-21 13:29:08,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:08,948 INFO L225 Difference]: With dead ends: 216889 [2023-12-21 13:29:08,948 INFO L226 Difference]: Without dead ends: 188339 [2023-12-21 13:29:09,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:29:09,012 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1566 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:09,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 1300 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:29:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188339 states. [2023-12-21 13:29:10,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188339 to 173159. [2023-12-21 13:29:11,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173159 states, 173158 states have (on average 1.262246041187817) internal successors, (218568), 173158 states have internal predecessors, (218568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:11,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173159 states to 173159 states and 218568 transitions. [2023-12-21 13:29:11,442 INFO L78 Accepts]: Start accepts. Automaton has 173159 states and 218568 transitions. Word has length 98 [2023-12-21 13:29:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:11,442 INFO L495 AbstractCegarLoop]: Abstraction has 173159 states and 218568 transitions. [2023-12-21 13:29:11,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 173159 states and 218568 transitions. [2023-12-21 13:29:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 13:29:11,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:11,463 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:29:11,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 13:29:11,464 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:11,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:11,464 INFO L85 PathProgramCache]: Analyzing trace with hash -872784897, now seen corresponding path program 1 times [2023-12-21 13:29:11,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:11,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020089906] [2023-12-21 13:29:11,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:11,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 13:29:11,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:11,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020089906] [2023-12-21 13:29:11,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020089906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:29:11,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:29:11,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:29:11,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955492264] [2023-12-21 13:29:11,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:29:11,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:29:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:29:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:29:11,993 INFO L87 Difference]: Start difference. First operand 173159 states and 218568 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:13,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:13,804 INFO L93 Difference]: Finished difference Result 425989 states and 536938 transitions. [2023-12-21 13:29:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:29:13,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 120 [2023-12-21 13:29:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:14,359 INFO L225 Difference]: With dead ends: 425989 [2023-12-21 13:29:14,360 INFO L226 Difference]: Without dead ends: 350595 [2023-12-21 13:29:14,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:29:14,820 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 2040 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:14,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 1368 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:29:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350595 states. [2023-12-21 13:29:17,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350595 to 173095. [2023-12-21 13:29:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173095 states, 173094 states have (on average 1.2622332374316845) internal successors, (218485), 173094 states have internal predecessors, (218485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:18,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173095 states to 173095 states and 218485 transitions. [2023-12-21 13:29:18,141 INFO L78 Accepts]: Start accepts. Automaton has 173095 states and 218485 transitions. Word has length 120 [2023-12-21 13:29:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:18,141 INFO L495 AbstractCegarLoop]: Abstraction has 173095 states and 218485 transitions. [2023-12-21 13:29:18,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 173095 states and 218485 transitions. [2023-12-21 13:29:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 13:29:18,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:18,166 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:29:18,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 13:29:18,166 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:18,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:18,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1183014438, now seen corresponding path program 1 times [2023-12-21 13:29:18,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:18,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856402220] [2023-12-21 13:29:18,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:18,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-21 13:29:18,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:18,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856402220] [2023-12-21 13:29:18,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856402220] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:29:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205080961] [2023-12-21 13:29:18,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:18,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:29:18,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:29:18,907 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) [2023-12-21 13:29:18,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 13:29:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:19,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 13:29:19,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:29:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:20,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:29:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:20,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205080961] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:29:20,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:29:20,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2023-12-21 13:29:20,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469146299] [2023-12-21 13:29:20,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:29:20,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 13:29:20,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:20,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 13:29:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-12-21 13:29:20,860 INFO L87 Difference]: Start difference. First operand 173095 states and 218485 transitions. Second operand has 19 states, 19 states have (on average 18.05263157894737) internal successors, (343), 19 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:30,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:30,793 INFO L93 Difference]: Finished difference Result 1568459 states and 1957193 transitions. [2023-12-21 13:29:30,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-12-21 13:29:30,794 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 18.05263157894737) internal successors, (343), 19 states have internal predecessors, (343), 0 states have call successors, (0), 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 120 [2023-12-21 13:29:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:33,646 INFO L225 Difference]: With dead ends: 1568459 [2023-12-21 13:29:33,647 INFO L226 Difference]: Without dead ends: 1396521 [2023-12-21 13:29:34,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8311 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3565, Invalid=17315, Unknown=0, NotChecked=0, Total=20880 [2023-12-21 13:29:34,270 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 6762 mSDsluCounter, 6216 mSDsCounter, 0 mSdLazyCounter, 5045 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6762 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 5092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 5045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:34,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6762 Valid, 6910 Invalid, 5092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 5045 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 13:29:35,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396521 states. [2023-12-21 13:29:44,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396521 to 440118. [2023-12-21 13:29:44,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440118 states, 440117 states have (on average 1.2664382425582288) internal successors, (557381), 440117 states have internal predecessors, (557381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440118 states to 440118 states and 557381 transitions. [2023-12-21 13:29:45,716 INFO L78 Accepts]: Start accepts. Automaton has 440118 states and 557381 transitions. Word has length 120 [2023-12-21 13:29:45,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:45,717 INFO L495 AbstractCegarLoop]: Abstraction has 440118 states and 557381 transitions. [2023-12-21 13:29:45,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.05263157894737) internal successors, (343), 19 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:45,717 INFO L276 IsEmpty]: Start isEmpty. Operand 440118 states and 557381 transitions. [2023-12-21 13:29:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 13:29:45,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:45,751 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] [2023-12-21 13:29:45,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 13:29:45,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-12-21 13:29:45,960 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:45,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:45,961 INFO L85 PathProgramCache]: Analyzing trace with hash -893044403, now seen corresponding path program 1 times [2023-12-21 13:29:45,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:45,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322480431] [2023-12-21 13:29:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:45,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:46,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:46,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322480431] [2023-12-21 13:29:46,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322480431] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:29:46,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738362337] [2023-12-21 13:29:46,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:46,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:29:46,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:29:46,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:29:46,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 13:29:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:46,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 13:29:46,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:29:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:47,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:29:47,208 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:47,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738362337] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:29:47,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:29:47,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-21 13:29:47,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806464831] [2023-12-21 13:29:47,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:29:47,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:29:47,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:29:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:29:47,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:29:47,209 INFO L87 Difference]: Start difference. First operand 440118 states and 557381 transitions. Second operand has 14 states, 14 states have (on average 22.857142857142858) internal successors, (320), 14 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) [2023-12-21 13:29:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:29:50,640 INFO L93 Difference]: Finished difference Result 962166 states and 1213979 transitions. [2023-12-21 13:29:50,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:29:50,641 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 22.857142857142858) internal successors, (320), 14 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) Word has length 121 [2023-12-21 13:29:50,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:29:51,449 INFO L225 Difference]: With dead ends: 962166 [2023-12-21 13:29:51,449 INFO L226 Difference]: Without dead ends: 523546 [2023-12-21 13:29:51,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:29:51,974 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 3154 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:29:51,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3154 Valid, 1218 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:29:52,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523546 states. [2023-12-21 13:29:57,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523546 to 431419. [2023-12-21 13:29:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431419 states, 431418 states have (on average 1.2502329527279807) internal successors, (539373), 431418 states have internal predecessors, (539373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:29:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431419 states to 431419 states and 539373 transitions. [2023-12-21 13:29:59,664 INFO L78 Accepts]: Start accepts. Automaton has 431419 states and 539373 transitions. Word has length 121 [2023-12-21 13:29:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:29:59,664 INFO L495 AbstractCegarLoop]: Abstraction has 431419 states and 539373 transitions. [2023-12-21 13:29:59,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 22.857142857142858) internal successors, (320), 14 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) [2023-12-21 13:29:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 431419 states and 539373 transitions. [2023-12-21 13:29:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 13:29:59,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:29:59,700 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] [2023-12-21 13:29:59,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 13:29:59,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-12-21 13:29:59,907 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:29:59,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:29:59,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1950722730, now seen corresponding path program 1 times [2023-12-21 13:29:59,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:29:59,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886957052] [2023-12-21 13:29:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:59,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:29:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:29:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:29:59,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:29:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886957052] [2023-12-21 13:29:59,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886957052] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:29:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364632329] [2023-12-21 13:29:59,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:29:59,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:29:59,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:29:59,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:30:00,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 13:30:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:00,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 13:30:00,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:30:00,542 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:00,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:30:00,710 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:00,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364632329] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:30:00,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:30:00,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-21 13:30:00,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533866425] [2023-12-21 13:30:00,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:30:00,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:30:00,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:00,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:30:00,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:30:00,713 INFO L87 Difference]: Start difference. First operand 431419 states and 539373 transitions. Second operand has 14 states, 14 states have (on average 23.357142857142858) internal successors, (327), 14 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:05,618 INFO L93 Difference]: Finished difference Result 1261491 states and 1579282 transitions. [2023-12-21 13:30:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:30:05,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 23.357142857142858) internal successors, (327), 14 states have internal predecessors, (327), 0 states have call successors, (0), 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 122 [2023-12-21 13:30:05,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:07,891 INFO L225 Difference]: With dead ends: 1261491 [2023-12-21 13:30:07,891 INFO L226 Difference]: Without dead ends: 831570 [2023-12-21 13:30:08,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:30:08,098 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 3843 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3843 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:08,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3843 Valid, 1638 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:30:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831570 states. [2023-12-21 13:30:14,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831570 to 495787. [2023-12-21 13:30:16,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495787 states, 495786 states have (on average 1.2367815952850625) internal successors, (613179), 495786 states have internal predecessors, (613179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495787 states to 495787 states and 613179 transitions. [2023-12-21 13:30:18,170 INFO L78 Accepts]: Start accepts. Automaton has 495787 states and 613179 transitions. Word has length 122 [2023-12-21 13:30:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:18,170 INFO L495 AbstractCegarLoop]: Abstraction has 495787 states and 613179 transitions. [2023-12-21 13:30:18,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.357142857142858) internal successors, (327), 14 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 495787 states and 613179 transitions. [2023-12-21 13:30:18,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-21 13:30:18,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:18,707 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] [2023-12-21 13:30:18,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 13:30:18,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:30:18,914 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:18,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:18,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1731712419, now seen corresponding path program 1 times [2023-12-21 13:30:18,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:18,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489513435] [2023-12-21 13:30:18,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:18,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 13:30:19,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:19,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489513435] [2023-12-21 13:30:19,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489513435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:19,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:19,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:30:19,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128277503] [2023-12-21 13:30:19,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:19,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:30:19,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:30:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:30:19,041 INFO L87 Difference]: Start difference. First operand 495787 states and 613179 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:22,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:22,639 INFO L93 Difference]: Finished difference Result 911097 states and 1127455 transitions. [2023-12-21 13:30:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:30:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 125 [2023-12-21 13:30:22,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:24,715 INFO L225 Difference]: With dead ends: 911097 [2023-12-21 13:30:24,716 INFO L226 Difference]: Without dead ends: 587263 [2023-12-21 13:30:25,080 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 [2023-12-21 13:30:25,082 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 333 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:25,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 574 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:30:25,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587263 states. [2023-12-21 13:30:31,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587263 to 438667. [2023-12-21 13:30:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438667 states, 438666 states have (on average 1.2336242152343697) internal successors, (541149), 438666 states have internal predecessors, (541149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:33,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438667 states to 438667 states and 541149 transitions. [2023-12-21 13:30:33,501 INFO L78 Accepts]: Start accepts. Automaton has 438667 states and 541149 transitions. Word has length 125 [2023-12-21 13:30:33,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:33,501 INFO L495 AbstractCegarLoop]: Abstraction has 438667 states and 541149 transitions. [2023-12-21 13:30:33,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 438667 states and 541149 transitions. [2023-12-21 13:30:33,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-21 13:30:33,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:33,539 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] [2023-12-21 13:30:33,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 13:30:33,539 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:33,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash 578552729, now seen corresponding path program 1 times [2023-12-21 13:30:33,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:33,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689041637] [2023-12-21 13:30:33,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:33,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-21 13:30:34,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:34,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689041637] [2023-12-21 13:30:34,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689041637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:34,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:34,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:30:34,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570661542] [2023-12-21 13:30:34,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:34,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:30:34,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:34,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:30:34,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:30:34,256 INFO L87 Difference]: Start difference. First operand 438667 states and 541149 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 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) [2023-12-21 13:30:36,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:36,174 INFO L93 Difference]: Finished difference Result 548959 states and 678521 transitions. [2023-12-21 13:30:36,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:30:36,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 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 125 [2023-12-21 13:30:36,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:37,372 INFO L225 Difference]: With dead ends: 548959 [2023-12-21 13:30:37,373 INFO L226 Difference]: Without dead ends: 505505 [2023-12-21 13:30:37,525 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 [2023-12-21 13:30:37,526 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 1443 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:37,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1443 Valid, 1272 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:30:37,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505505 states. [2023-12-21 13:30:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505505 to 475473. [2023-12-21 13:30:43,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475473 states, 475472 states have (on average 1.2319064003768887) internal successors, (585737), 475472 states have internal predecessors, (585737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475473 states to 475473 states and 585737 transitions. [2023-12-21 13:30:44,888 INFO L78 Accepts]: Start accepts. Automaton has 475473 states and 585737 transitions. Word has length 125 [2023-12-21 13:30:44,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:44,889 INFO L495 AbstractCegarLoop]: Abstraction has 475473 states and 585737 transitions. [2023-12-21 13:30:44,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 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) [2023-12-21 13:30:44,889 INFO L276 IsEmpty]: Start isEmpty. Operand 475473 states and 585737 transitions. [2023-12-21 13:30:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-21 13:30:44,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:44,934 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] [2023-12-21 13:30:44,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 13:30:44,935 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:44,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash -465076039, now seen corresponding path program 1 times [2023-12-21 13:30:44,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:44,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166694495] [2023-12-21 13:30:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:44,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-21 13:30:45,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:45,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166694495] [2023-12-21 13:30:45,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166694495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:30:45,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:30:45,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:30:45,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484734469] [2023-12-21 13:30:45,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:30:45,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:30:45,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:45,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:30:45,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:30:45,473 INFO L87 Difference]: Start difference. First operand 475473 states and 585737 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:47,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:30:47,337 INFO L93 Difference]: Finished difference Result 620121 states and 767431 transitions. [2023-12-21 13:30:47,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:30:47,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-21 13:30:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:30:48,802 INFO L225 Difference]: With dead ends: 620121 [2023-12-21 13:30:48,803 INFO L226 Difference]: Without dead ends: 554008 [2023-12-21 13:30:48,987 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 [2023-12-21 13:30:48,988 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 1442 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:30:49,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 1273 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:30:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554008 states. [2023-12-21 13:30:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554008 to 523976. [2023-12-21 13:30:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523976 states, 523975 states have (on average 1.2310281979102056) internal successors, (645028), 523975 states have internal predecessors, (645028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523976 states to 523976 states and 645028 transitions. [2023-12-21 13:30:56,473 INFO L78 Accepts]: Start accepts. Automaton has 523976 states and 645028 transitions. Word has length 125 [2023-12-21 13:30:56,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:30:56,473 INFO L495 AbstractCegarLoop]: Abstraction has 523976 states and 645028 transitions. [2023-12-21 13:30:56,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:30:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 523976 states and 645028 transitions. [2023-12-21 13:30:56,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 13:30:56,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:30:56,540 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, 1, 1, 1] [2023-12-21 13:30:56,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 13:30:56,540 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:30:56,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:30:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash 292578580, now seen corresponding path program 1 times [2023-12-21 13:30:56,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:30:56,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753171762] [2023-12-21 13:30:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:56,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:30:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:57,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:30:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753171762] [2023-12-21 13:30:57,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753171762] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:30:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735375260] [2023-12-21 13:30:57,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:30:57,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:30:57,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:30:57,002 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:30:57,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 13:30:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:30:57,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 13:30:57,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:30:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:57,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:30:57,730 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:30:57,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735375260] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:30:57,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:30:57,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-21 13:30:57,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645481984] [2023-12-21 13:30:57,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:30:57,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:30:57,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:30:57,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:30:57,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:30:57,731 INFO L87 Difference]: Start difference. First operand 523976 states and 645028 transitions. Second operand has 14 states, 14 states have (on average 24.5) internal successors, (343), 14 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:02,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:31:02,599 INFO L93 Difference]: Finished difference Result 1325863 states and 1630325 transitions. [2023-12-21 13:31:02,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:31:02,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 24.5) internal successors, (343), 14 states have internal predecessors, (343), 0 states have call successors, (0), 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 128 [2023-12-21 13:31:02,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:31:05,017 INFO L225 Difference]: With dead ends: 1325863 [2023-12-21 13:31:05,017 INFO L226 Difference]: Without dead ends: 803251 [2023-12-21 13:31:05,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:31:05,194 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 5134 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:31:05,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5134 Valid, 1284 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:31:05,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803251 states. [2023-12-21 13:31:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803251 to 547521. [2023-12-21 13:31:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547521 states, 547520 states have (on average 1.2192047779076562) internal successors, (667539), 547520 states have internal predecessors, (667539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:14,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547521 states to 547521 states and 667539 transitions. [2023-12-21 13:31:14,703 INFO L78 Accepts]: Start accepts. Automaton has 547521 states and 667539 transitions. Word has length 128 [2023-12-21 13:31:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:31:14,703 INFO L495 AbstractCegarLoop]: Abstraction has 547521 states and 667539 transitions. [2023-12-21 13:31:14,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.5) internal successors, (343), 14 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 547521 states and 667539 transitions. [2023-12-21 13:31:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 13:31:15,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:31:15,190 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, 1, 1, 1, 1, 1] [2023-12-21 13:31:15,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 13:31:15,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:31:15,397 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:31:15,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:31:15,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1844152954, now seen corresponding path program 1 times [2023-12-21 13:31:15,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:31:15,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617857428] [2023-12-21 13:31:15,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:15,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:31:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:15,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:31:15,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617857428] [2023-12-21 13:31:15,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617857428] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:31:15,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065515198] [2023-12-21 13:31:15,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:15,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:31:15,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:31:15,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:31:15,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 13:31:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:15,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 13:31:15,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:31:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:16,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:31:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:16,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065515198] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:31:16,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:31:16,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-21 13:31:16,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293623201] [2023-12-21 13:31:16,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:31:16,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:31:16,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:31:16,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:31:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:31:16,474 INFO L87 Difference]: Start difference. First operand 547521 states and 667539 transitions. Second operand has 14 states, 14 states have (on average 25.642857142857142) internal successors, (359), 14 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:31:21,468 INFO L93 Difference]: Finished difference Result 1304560 states and 1587156 transitions. [2023-12-21 13:31:21,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:31:21,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 25.642857142857142) internal successors, (359), 14 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-21 13:31:21,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:31:23,336 INFO L225 Difference]: With dead ends: 1304560 [2023-12-21 13:31:23,336 INFO L226 Difference]: Without dead ends: 758403 [2023-12-21 13:31:23,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:31:23,557 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 2930 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2930 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:31:23,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2930 Valid, 1649 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:31:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758403 states. [2023-12-21 13:31:31,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758403 to 524160. [2023-12-21 13:31:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524160 states, 524159 states have (on average 1.2042338298111832) internal successors, (631210), 524159 states have internal predecessors, (631210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524160 states to 524160 states and 631210 transitions. [2023-12-21 13:31:33,061 INFO L78 Accepts]: Start accepts. Automaton has 524160 states and 631210 transitions. Word has length 130 [2023-12-21 13:31:33,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:31:33,061 INFO L495 AbstractCegarLoop]: Abstraction has 524160 states and 631210 transitions. [2023-12-21 13:31:33,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 25.642857142857142) internal successors, (359), 14 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 524160 states and 631210 transitions. [2023-12-21 13:31:33,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 13:31:33,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:31:33,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:31:33,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 13:31:33,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:31:33,336 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:31:33,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:31:33,336 INFO L85 PathProgramCache]: Analyzing trace with hash 428944603, now seen corresponding path program 1 times [2023-12-21 13:31:33,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:31:33,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139809488] [2023-12-21 13:31:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:33,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:31:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 13:31:33,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:31:33,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139809488] [2023-12-21 13:31:33,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139809488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:31:33,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:31:33,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:31:33,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694316671] [2023-12-21 13:31:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:31:33,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:31:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:31:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:31:33,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:31:33,458 INFO L87 Difference]: Start difference. First operand 524160 states and 631210 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:31:38,087 INFO L93 Difference]: Finished difference Result 1306339 states and 1560560 transitions. [2023-12-21 13:31:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:31:38,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-12-21 13:31:38,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:31:40,697 INFO L225 Difference]: With dead ends: 1306339 [2023-12-21 13:31:40,697 INFO L226 Difference]: Without dead ends: 1193715 [2023-12-21 13:31:40,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:31:40,926 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 2733 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2733 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:31:40,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2733 Valid, 772 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:31:42,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193715 states. [2023-12-21 13:31:50,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193715 to 524292. [2023-12-21 13:31:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524292 states, 524291 states have (on average 1.2042224642421862) internal successors, (631363), 524291 states have internal predecessors, (631363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524292 states to 524292 states and 631363 transitions. [2023-12-21 13:31:53,222 INFO L78 Accepts]: Start accepts. Automaton has 524292 states and 631363 transitions. Word has length 130 [2023-12-21 13:31:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:31:53,222 INFO L495 AbstractCegarLoop]: Abstraction has 524292 states and 631363 transitions. [2023-12-21 13:31:53,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:31:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 524292 states and 631363 transitions. [2023-12-21 13:31:53,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 13:31:53,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:31:53,286 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:31:53,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 13:31:53,286 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-21 13:31:53,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:31:53,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2118037536, now seen corresponding path program 1 times [2023-12-21 13:31:53,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:31:53,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583271772] [2023-12-21 13:31:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:53,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:31:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:53,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:31:53,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583271772] [2023-12-21 13:31:53,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583271772] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:31:53,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358424382] [2023-12-21 13:31:53,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:31:53,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:31:53,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:31:53,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:31:53,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 13:31:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:31:53,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 13:31:53,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:31:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:54,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:31:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:31:55,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358424382] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:31:55,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:31:55,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 27 [2023-12-21 13:31:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332062797] [2023-12-21 13:31:55,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:31:55,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 13:31:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:31:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 13:31:55,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2023-12-21 13:31:55,357 INFO L87 Difference]: Start difference. First operand 524292 states and 631363 transitions. Second operand has 28 states, 28 states have (on average 12.571428571428571) internal successors, (352), 27 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:35:16,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:35:16,634 INFO L93 Difference]: Finished difference Result 7056733 states and 8453360 transitions. [2023-12-21 13:35:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2047 states. [2023-12-21 13:35:16,635 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 12.571428571428571) internal successors, (352), 27 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-12-21 13:35:16,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted.