/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:32:03,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:32:03,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:32:03,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:32:03,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:32:03,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:32:03,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:32:03,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:32:03,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:32:03,330 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:32:03,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:32:03,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:32:03,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:32:03,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:32:03,332 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:32:03,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:32:03,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:32:03,332 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:32:03,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:32:03,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:32:03,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:32:03,334 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:32:03,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:32:03,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:32:03,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:32:03,334 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:32:03,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:32:03,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:32:03,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:32:03,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:32:03,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:32:03,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:32:03,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:32:03,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:32:03,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:32:03,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:32:03,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:32:03,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:32:03,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:32:03,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:32:03,338 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:32:03,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:32:03,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:32:03,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:32:03,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:32:03,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:32:03,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:32:03,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:32:03,611 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:32:03,612 INFO L431 ainManager$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.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-15 23:32:04,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:32:05,154 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:32:05,155 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-15 23:32:05,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d575bc87/157d3e6d9c9c418ca221ff21e94b3c57/FLAGd981e1678 [2023-12-15 23:32:05,193 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d575bc87/157d3e6d9c9c418ca221ff21e94b3c57 [2023-12-15 23:32:05,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:32:05,196 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:32:05,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:32:05,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:32:05,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:32:05,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:32:05" (1/1) ... [2023-12-15 23:32:05,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411444a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:05, skipping insertion in model container [2023-12-15 23:32:05,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:32:05" (1/1) ... [2023-12-15 23:32:05,293 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:32:05,598 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.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2023-12-15 23:32:05,638 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.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2023-12-15 23:32:05,657 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.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2023-12-15 23:32:05,673 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.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2023-12-15 23:32:05,683 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.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2023-12-15 23:32:05,700 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.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2023-12-15 23:32:05,706 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.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2023-12-15 23:32:06,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:32:06,026 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:32:06,064 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.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2023-12-15 23:32:06,074 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.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2023-12-15 23:32:06,081 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.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2023-12-15 23:32:06,083 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2023-12-15 23:32:06,091 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2023-12-15 23:32:06,094 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.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2023-12-15 23:32:06,098 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.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2023-12-15 23:32:06,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:32:06,279 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:32:06,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06 WrapperNode [2023-12-15 23:32:06,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:32:06,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:32:06,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:32:06,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:32:06,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,408 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7036 [2023-12-15 23:32:06,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:32:06,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:32:06,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:32:06,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:32:06,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,524 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]. [2023-12-15 23:32:06,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:32:06,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:32:06,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:32:06,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:32:06,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (1/1) ... [2023-12-15 23:32:06,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:32:06,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:32:06,750 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) [2023-12-15 23:32:06,844 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 [2023-12-15 23:32:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:32:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:32:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:32:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:32:07,131 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:32:07,133 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:32:09,145 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:32:09,210 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:32:09,210 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:32:09,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:32:09 BoogieIcfgContainer [2023-12-15 23:32:09,211 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:32:09,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:32:09,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:32:09,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:32:09,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:32:05" (1/3) ... [2023-12-15 23:32:09,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c5d02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:32:09, skipping insertion in model container [2023-12-15 23:32:09,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:32:06" (2/3) ... [2023-12-15 23:32:09,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c5d02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:32:09, skipping insertion in model container [2023-12-15 23:32:09,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:32:09" (3/3) ... [2023-12-15 23:32:09,219 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-15 23:32:09,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:32:09,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-15 23:32:09,278 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:32:09,283 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;@589be56b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:32:09,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-15 23:32:09,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 1100 states, 1092 states have (on average 1.8891941391941391) internal successors, (2063), 1099 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-15 23:32:09,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:09,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:09,306 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)] === [2023-12-15 23:32:09,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash -966255617, now seen corresponding path program 1 times [2023-12-15 23:32:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:09,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473586105] [2023-12-15 23:32:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:09,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:09,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:09,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473586105] [2023-12-15 23:32:09,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473586105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:09,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:09,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:32:09,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375163754] [2023-12-15 23:32:09,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:09,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:32:09,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:09,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:32:09,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:32:09,773 INFO L87 Difference]: Start difference. First operand has 1100 states, 1092 states have (on average 1.8891941391941391) internal successors, (2063), 1099 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:10,476 INFO L93 Difference]: Finished difference Result 1682 states and 3067 transitions. [2023-12-15 23:32:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:32:10,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-15 23:32:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:10,490 INFO L225 Difference]: With dead ends: 1682 [2023-12-15 23:32:10,490 INFO L226 Difference]: Without dead ends: 1061 [2023-12-15 23:32:10,493 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 [2023-12-15 23:32:10,496 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 5417 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5417 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:10,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5417 Valid, 1339 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:32:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2023-12-15 23:32:10,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1053. [2023-12-15 23:32:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1046 states have (on average 1.3231357552581262) internal successors, (1384), 1052 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:10,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1384 transitions. [2023-12-15 23:32:10,547 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1384 transitions. Word has length 62 [2023-12-15 23:32:10,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:10,547 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 1384 transitions. [2023-12-15 23:32:10,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:10,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1384 transitions. [2023-12-15 23:32:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-15 23:32:10,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:10,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:10,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:32:10,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:10,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:10,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1187989298, now seen corresponding path program 1 times [2023-12-15 23:32:10,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:10,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921700672] [2023-12-15 23:32:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:10,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:10,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921700672] [2023-12-15 23:32:10,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921700672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:10,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:10,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:10,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000949736] [2023-12-15 23:32:10,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:10,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:10,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:10,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:10,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:10,676 INFO L87 Difference]: Start difference. First operand 1053 states and 1384 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:10,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:10,761 INFO L93 Difference]: Finished difference Result 1620 states and 2222 transitions. [2023-12-15 23:32:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:10,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-15 23:32:10,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:10,765 INFO L225 Difference]: With dead ends: 1620 [2023-12-15 23:32:10,766 INFO L226 Difference]: Without dead ends: 1336 [2023-12-15 23:32:10,767 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 [2023-12-15 23:32:10,768 INFO L413 NwaCegarLoop]: 1169 mSDtfsCounter, 573 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:10,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1941 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:32:10,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2023-12-15 23:32:10,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1328. [2023-12-15 23:32:10,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1321 states have (on average 1.3504920514761545) internal successors, (1784), 1327 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:10,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1784 transitions. [2023-12-15 23:32:10,800 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1784 transitions. Word has length 62 [2023-12-15 23:32:10,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:10,801 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1784 transitions. [2023-12-15 23:32:10,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:10,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1784 transitions. [2023-12-15 23:32:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-15 23:32:10,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:10,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:10,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:32:10,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:10,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:10,806 INFO L85 PathProgramCache]: Analyzing trace with hash -369366517, now seen corresponding path program 1 times [2023-12-15 23:32:10,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:10,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003073967] [2023-12-15 23:32:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:10,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:10,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:10,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003073967] [2023-12-15 23:32:10,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003073967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:10,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:10,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:10,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940728985] [2023-12-15 23:32:10,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:10,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:10,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:10,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:10,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:10,909 INFO L87 Difference]: Start difference. First operand 1328 states and 1784 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:10,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:10,957 INFO L93 Difference]: Finished difference Result 2107 states and 2940 transitions. [2023-12-15 23:32:10,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:10,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-15 23:32:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:10,967 INFO L225 Difference]: With dead ends: 2107 [2023-12-15 23:32:10,972 INFO L226 Difference]: Without dead ends: 1608 [2023-12-15 23:32:10,973 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 [2023-12-15 23:32:10,976 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 707 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1846 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 [2023-12-15 23:32:10,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1846 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:10,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2023-12-15 23:32:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1598. [2023-12-15 23:32:11,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1591 states have (on average 1.365179132620993) internal successors, (2172), 1597 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2172 transitions. [2023-12-15 23:32:11,005 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2172 transitions. Word has length 62 [2023-12-15 23:32:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:11,006 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 2172 transitions. [2023-12-15 23:32:11,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2172 transitions. [2023-12-15 23:32:11,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-15 23:32:11,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:11,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:11,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:32:11,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:11,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:11,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1656441469, now seen corresponding path program 1 times [2023-12-15 23:32:11,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:11,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817717324] [2023-12-15 23:32:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:11,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:11,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:11,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817717324] [2023-12-15 23:32:11,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817717324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:11,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:11,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:32:11,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124018902] [2023-12-15 23:32:11,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:11,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:32:11,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:11,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:32:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:32:11,136 INFO L87 Difference]: Start difference. First operand 1598 states and 2172 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:11,553 INFO L93 Difference]: Finished difference Result 3396 states and 4762 transitions. [2023-12-15 23:32:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:32:11,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-15 23:32:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:11,558 INFO L225 Difference]: With dead ends: 3396 [2023-12-15 23:32:11,558 INFO L226 Difference]: Without dead ends: 2045 [2023-12-15 23:32:11,559 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 [2023-12-15 23:32:11,559 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 3182 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3182 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:11,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3182 Valid, 733 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:32:11,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2023-12-15 23:32:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2037. [2023-12-15 23:32:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 2030 states have (on average 1.4133004926108375) internal successors, (2869), 2036 states have internal predecessors, (2869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2869 transitions. [2023-12-15 23:32:11,637 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2869 transitions. Word has length 62 [2023-12-15 23:32:11,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:11,638 INFO L495 AbstractCegarLoop]: Abstraction has 2037 states and 2869 transitions. [2023-12-15 23:32:11,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2869 transitions. [2023-12-15 23:32:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 23:32:11,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:11,641 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] [2023-12-15 23:32:11,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:32:11,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:11,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:11,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1951931054, now seen corresponding path program 1 times [2023-12-15 23:32:11,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:11,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919143642] [2023-12-15 23:32:11,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:11,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:11,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:11,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919143642] [2023-12-15 23:32:11,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919143642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:11,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:11,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:11,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243701186] [2023-12-15 23:32:11,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:11,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:11,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:11,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:11,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:11,775 INFO L87 Difference]: Start difference. First operand 2037 states and 2869 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) [2023-12-15 23:32:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:11,812 INFO L93 Difference]: Finished difference Result 4150 states and 5929 transitions. [2023-12-15 23:32:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:11,813 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 [2023-12-15 23:32:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:11,821 INFO L225 Difference]: With dead ends: 4150 [2023-12-15 23:32:11,821 INFO L226 Difference]: Without dead ends: 2829 [2023-12-15 23:32:11,823 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 [2023-12-15 23:32:11,825 INFO L413 NwaCegarLoop]: 1185 mSDtfsCounter, 739 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1820 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 [2023-12-15 23:32:11,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1820 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:11,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2023-12-15 23:32:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2815. [2023-12-15 23:32:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2808 states have (on average 1.3977920227920229) internal successors, (3925), 2814 states have internal predecessors, (3925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3925 transitions. [2023-12-15 23:32:11,874 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3925 transitions. Word has length 63 [2023-12-15 23:32:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:11,874 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 3925 transitions. [2023-12-15 23:32:11,874 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) [2023-12-15 23:32:11,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3925 transitions. [2023-12-15 23:32:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 23:32:11,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:11,878 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] [2023-12-15 23:32:11,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:32:11,878 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:11,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash 55124087, now seen corresponding path program 1 times [2023-12-15 23:32:11,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:11,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553261709] [2023-12-15 23:32:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:11,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:11,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:11,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553261709] [2023-12-15 23:32:11,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553261709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:11,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:11,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:32:11,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833335718] [2023-12-15 23:32:11,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:11,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:32:11,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:11,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:32:11,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:32:12,000 INFO L87 Difference]: Start difference. First operand 2815 states and 3925 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) [2023-12-15 23:32:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:12,353 INFO L93 Difference]: Finished difference Result 5755 states and 8123 transitions. [2023-12-15 23:32:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:32:12,353 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 [2023-12-15 23:32:12,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:12,362 INFO L225 Difference]: With dead ends: 5755 [2023-12-15 23:32:12,363 INFO L226 Difference]: Without dead ends: 3426 [2023-12-15 23:32:12,365 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 [2023-12-15 23:32:12,368 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 2665 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:12,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 618 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:32:12,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2023-12-15 23:32:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 3409. [2023-12-15 23:32:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 3402 states have (on average 1.3930041152263375) internal successors, (4739), 3408 states have internal predecessors, (4739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:12,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 4739 transitions. [2023-12-15 23:32:12,422 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 4739 transitions. Word has length 63 [2023-12-15 23:32:12,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:12,423 INFO L495 AbstractCegarLoop]: Abstraction has 3409 states and 4739 transitions. [2023-12-15 23:32:12,423 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) [2023-12-15 23:32:12,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 4739 transitions. [2023-12-15 23:32:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-15 23:32:12,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:12,426 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] [2023-12-15 23:32:12,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:32:12,426 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:12,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:12,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1411626804, now seen corresponding path program 1 times [2023-12-15 23:32:12,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:12,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099322582] [2023-12-15 23:32:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:12,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:12,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:12,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099322582] [2023-12-15 23:32:12,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099322582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:12,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:12,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:32:12,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6674081] [2023-12-15 23:32:12,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:12,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:32:12,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:32:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:32:12,569 INFO L87 Difference]: Start difference. First operand 3409 states and 4739 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) [2023-12-15 23:32:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:12,882 INFO L93 Difference]: Finished difference Result 8601 states and 12191 transitions. [2023-12-15 23:32:12,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:32:12,883 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 [2023-12-15 23:32:12,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:12,897 INFO L225 Difference]: With dead ends: 8601 [2023-12-15 23:32:12,897 INFO L226 Difference]: Without dead ends: 5429 [2023-12-15 23:32:12,902 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 [2023-12-15 23:32:12,903 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2453 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:12,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 590 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:32:12,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2023-12-15 23:32:12,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 5421. [2023-12-15 23:32:12,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5421 states, 5414 states have (on average 1.4154045068341337) internal successors, (7663), 5420 states have internal predecessors, (7663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5421 states to 5421 states and 7663 transitions. [2023-12-15 23:32:13,008 INFO L78 Accepts]: Start accepts. Automaton has 5421 states and 7663 transitions. Word has length 64 [2023-12-15 23:32:13,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:13,009 INFO L495 AbstractCegarLoop]: Abstraction has 5421 states and 7663 transitions. [2023-12-15 23:32:13,009 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) [2023-12-15 23:32:13,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5421 states and 7663 transitions. [2023-12-15 23:32:13,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-15 23:32:13,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:13,012 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] [2023-12-15 23:32:13,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:32:13,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:13,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:13,014 INFO L85 PathProgramCache]: Analyzing trace with hash 257868933, now seen corresponding path program 1 times [2023-12-15 23:32:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:13,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224250675] [2023-12-15 23:32:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:13,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:13,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:13,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224250675] [2023-12-15 23:32:13,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224250675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:13,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:13,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:13,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330119924] [2023-12-15 23:32:13,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:13,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:13,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:13,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:13,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:13,076 INFO L87 Difference]: Start difference. First operand 5421 states and 7663 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2023-12-15 23:32:13,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:13,127 INFO L93 Difference]: Finished difference Result 11855 states and 16870 transitions. [2023-12-15 23:32:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:13,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2023-12-15 23:32:13,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:13,153 INFO L225 Difference]: With dead ends: 11855 [2023-12-15 23:32:13,154 INFO L226 Difference]: Without dead ends: 7451 [2023-12-15 23:32:13,160 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 [2023-12-15 23:32:13,161 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 496 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1351 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 [2023-12-15 23:32:13,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1351 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2023-12-15 23:32:13,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 7416. [2023-12-15 23:32:13,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7416 states, 7409 states have (on average 1.3914158455931975) internal successors, (10309), 7415 states have internal predecessors, (10309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7416 states to 7416 states and 10309 transitions. [2023-12-15 23:32:13,303 INFO L78 Accepts]: Start accepts. Automaton has 7416 states and 10309 transitions. Word has length 65 [2023-12-15 23:32:13,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:13,304 INFO L495 AbstractCegarLoop]: Abstraction has 7416 states and 10309 transitions. [2023-12-15 23:32:13,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2023-12-15 23:32:13,304 INFO L276 IsEmpty]: Start isEmpty. Operand 7416 states and 10309 transitions. [2023-12-15 23:32:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-15 23:32:13,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:13,309 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] [2023-12-15 23:32:13,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:32:13,310 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:13,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:13,310 INFO L85 PathProgramCache]: Analyzing trace with hash 868506865, now seen corresponding path program 1 times [2023-12-15 23:32:13,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:13,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670797679] [2023-12-15 23:32:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:13,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:13,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:13,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670797679] [2023-12-15 23:32:13,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670797679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:13,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:13,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:13,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627148340] [2023-12-15 23:32:13,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:13,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:32:13,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:13,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:32:13,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:32:13,416 INFO L87 Difference]: Start difference. First operand 7416 states and 10309 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:13,953 INFO L93 Difference]: Finished difference Result 25546 states and 36210 transitions. [2023-12-15 23:32:13,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:32:13,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-15 23:32:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:13,996 INFO L225 Difference]: With dead ends: 25546 [2023-12-15 23:32:13,997 INFO L226 Difference]: Without dead ends: 22001 [2023-12-15 23:32:14,008 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 [2023-12-15 23:32:14,009 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 4463 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:14,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 1062 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:32:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22001 states. [2023-12-15 23:32:14,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22001 to 7444. [2023-12-15 23:32:14,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7444 states, 7437 states have (on average 1.391017883555197) internal successors, (10345), 7443 states have internal predecessors, (10345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 10345 transitions. [2023-12-15 23:32:14,195 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 10345 transitions. Word has length 66 [2023-12-15 23:32:14,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:14,195 INFO L495 AbstractCegarLoop]: Abstraction has 7444 states and 10345 transitions. [2023-12-15 23:32:14,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 10345 transitions. [2023-12-15 23:32:14,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-15 23:32:14,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:14,200 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] [2023-12-15 23:32:14,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:32:14,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:14,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:14,201 INFO L85 PathProgramCache]: Analyzing trace with hash -115804627, now seen corresponding path program 1 times [2023-12-15 23:32:14,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:14,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029144277] [2023-12-15 23:32:14,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:14,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:14,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:14,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:14,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029144277] [2023-12-15 23:32:14,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029144277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:14,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:14,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:14,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515465597] [2023-12-15 23:32:14,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:14,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:32:14,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:14,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:32:14,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:32:14,369 INFO L87 Difference]: Start difference. First operand 7444 states and 10345 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:15,026 INFO L93 Difference]: Finished difference Result 28138 states and 40022 transitions. [2023-12-15 23:32:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:32:15,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-15 23:32:15,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:15,068 INFO L225 Difference]: With dead ends: 28138 [2023-12-15 23:32:15,069 INFO L226 Difference]: Without dead ends: 25041 [2023-12-15 23:32:15,079 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 [2023-12-15 23:32:15,080 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 3354 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3354 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:15,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3354 Valid, 1234 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:32:15,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25041 states. [2023-12-15 23:32:15,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25041 to 7515. [2023-12-15 23:32:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7515 states, 7508 states have (on average 1.391049547149707) internal successors, (10444), 7514 states have internal predecessors, (10444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7515 states to 7515 states and 10444 transitions. [2023-12-15 23:32:15,283 INFO L78 Accepts]: Start accepts. Automaton has 7515 states and 10444 transitions. Word has length 66 [2023-12-15 23:32:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:15,283 INFO L495 AbstractCegarLoop]: Abstraction has 7515 states and 10444 transitions. [2023-12-15 23:32:15,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 7515 states and 10444 transitions. [2023-12-15 23:32:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-15 23:32:15,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:15,288 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] [2023-12-15 23:32:15,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:32:15,289 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:15,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash 31518793, now seen corresponding path program 1 times [2023-12-15 23:32:15,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:15,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055948509] [2023-12-15 23:32:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:15,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:15,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:15,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:15,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055948509] [2023-12-15 23:32:15,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055948509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:15,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:15,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:15,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375981692] [2023-12-15 23:32:15,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:15,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:32:15,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:15,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:32:15,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:32:15,439 INFO L87 Difference]: Start difference. First operand 7515 states and 10444 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:16,032 INFO L93 Difference]: Finished difference Result 36676 states and 52252 transitions. [2023-12-15 23:32:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:32:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-15 23:32:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:16,081 INFO L225 Difference]: With dead ends: 36676 [2023-12-15 23:32:16,082 INFO L226 Difference]: Without dead ends: 33133 [2023-12-15 23:32:16,096 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 [2023-12-15 23:32:16,097 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 5046 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 1128 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 [2023-12-15 23:32:16,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 1128 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:32:16,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33133 states. [2023-12-15 23:32:16,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33133 to 7583. [2023-12-15 23:32:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7583 states, 7576 states have (on average 1.3901795142555438) internal successors, (10532), 7582 states have internal predecessors, (10532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:16,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7583 states to 7583 states and 10532 transitions. [2023-12-15 23:32:16,402 INFO L78 Accepts]: Start accepts. Automaton has 7583 states and 10532 transitions. Word has length 66 [2023-12-15 23:32:16,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:16,402 INFO L495 AbstractCegarLoop]: Abstraction has 7583 states and 10532 transitions. [2023-12-15 23:32:16,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:16,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7583 states and 10532 transitions. [2023-12-15 23:32:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-15 23:32:16,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:16,409 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] [2023-12-15 23:32:16,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:32:16,410 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:16,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:16,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1680186821, now seen corresponding path program 1 times [2023-12-15 23:32:16,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:16,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759789644] [2023-12-15 23:32:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:16,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:16,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:16,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759789644] [2023-12-15 23:32:16,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759789644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:16,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:16,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918434412] [2023-12-15 23:32:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:16,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:32:16,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:16,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:32:16,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:32:16,504 INFO L87 Difference]: Start difference. First operand 7583 states and 10532 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:17,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:17,137 INFO L93 Difference]: Finished difference Result 32607 states and 46381 transitions. [2023-12-15 23:32:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:32:17,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-15 23:32:17,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:17,176 INFO L225 Difference]: With dead ends: 32607 [2023-12-15 23:32:17,176 INFO L226 Difference]: Without dead ends: 29246 [2023-12-15 23:32:17,188 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 [2023-12-15 23:32:17,189 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 4613 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:17,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4613 Valid, 1110 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:32:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29246 states. [2023-12-15 23:32:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29246 to 7712. [2023-12-15 23:32:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7712 states, 7705 states have (on average 1.3890979883192731) internal successors, (10703), 7711 states have internal predecessors, (10703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:17,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7712 states to 7712 states and 10703 transitions. [2023-12-15 23:32:17,428 INFO L78 Accepts]: Start accepts. Automaton has 7712 states and 10703 transitions. Word has length 66 [2023-12-15 23:32:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:17,428 INFO L495 AbstractCegarLoop]: Abstraction has 7712 states and 10703 transitions. [2023-12-15 23:32:17,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-15 23:32:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7712 states and 10703 transitions. [2023-12-15 23:32:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:32:17,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:17,434 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] [2023-12-15 23:32:17,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:32:17,435 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:17,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1923868673, now seen corresponding path program 1 times [2023-12-15 23:32:17,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:17,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694236826] [2023-12-15 23:32:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:17,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:17,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:17,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694236826] [2023-12-15 23:32:17,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694236826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:17,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:17,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:17,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500970651] [2023-12-15 23:32:17,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:17,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:17,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:17,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:17,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:17,643 INFO L87 Difference]: Start difference. First operand 7712 states and 10703 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:18,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:18,514 INFO L93 Difference]: Finished difference Result 24009 states and 34215 transitions. [2023-12-15 23:32:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:32:18,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:32:18,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:18,538 INFO L225 Difference]: With dead ends: 24009 [2023-12-15 23:32:18,538 INFO L226 Difference]: Without dead ends: 19370 [2023-12-15 23:32:18,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:32:18,548 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 1965 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:18,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 2109 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:32:18,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19370 states. [2023-12-15 23:32:18,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19370 to 7703. [2023-12-15 23:32:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7703 states, 7696 states have (on average 1.3883835758835759) internal successors, (10685), 7702 states have internal predecessors, (10685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:18,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7703 states to 7703 states and 10685 transitions. [2023-12-15 23:32:18,717 INFO L78 Accepts]: Start accepts. Automaton has 7703 states and 10685 transitions. Word has length 67 [2023-12-15 23:32:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:18,718 INFO L495 AbstractCegarLoop]: Abstraction has 7703 states and 10685 transitions. [2023-12-15 23:32:18,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:18,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7703 states and 10685 transitions. [2023-12-15 23:32:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:32:18,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:18,723 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] [2023-12-15 23:32:18,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:32:18,723 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:18,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1803782915, now seen corresponding path program 1 times [2023-12-15 23:32:18,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:18,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837615106] [2023-12-15 23:32:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:18,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:18,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837615106] [2023-12-15 23:32:18,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837615106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:18,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:18,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:18,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710754229] [2023-12-15 23:32:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:18,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:18,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:18,897 INFO L87 Difference]: Start difference. First operand 7703 states and 10685 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:19,647 INFO L93 Difference]: Finished difference Result 24155 states and 34432 transitions. [2023-12-15 23:32:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:32:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:32:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:19,670 INFO L225 Difference]: With dead ends: 24155 [2023-12-15 23:32:19,670 INFO L226 Difference]: Without dead ends: 19486 [2023-12-15 23:32:19,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:32:19,681 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 2966 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2966 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:19,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2966 Valid, 2004 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 23:32:19,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19486 states. [2023-12-15 23:32:19,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19486 to 7679. [2023-12-15 23:32:19,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7679 states, 7672 states have (on average 1.387643378519291) internal successors, (10646), 7678 states have internal predecessors, (10646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7679 states to 7679 states and 10646 transitions. [2023-12-15 23:32:19,848 INFO L78 Accepts]: Start accepts. Automaton has 7679 states and 10646 transitions. Word has length 67 [2023-12-15 23:32:19,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:19,849 INFO L495 AbstractCegarLoop]: Abstraction has 7679 states and 10646 transitions. [2023-12-15 23:32:19,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:19,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7679 states and 10646 transitions. [2023-12-15 23:32:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:32:19,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:19,854 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] [2023-12-15 23:32:19,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:32:19,854 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:19,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash -306757220, now seen corresponding path program 1 times [2023-12-15 23:32:19,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:19,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084478500] [2023-12-15 23:32:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:19,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:19,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084478500] [2023-12-15 23:32:19,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084478500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:19,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:19,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:19,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693769145] [2023-12-15 23:32:19,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:19,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:32:19,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:19,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:32:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:32:19,990 INFO L87 Difference]: Start difference. First operand 7679 states and 10646 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) [2023-12-15 23:32:20,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:20,675 INFO L93 Difference]: Finished difference Result 28356 states and 40298 transitions. [2023-12-15 23:32:20,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:32:20,676 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 [2023-12-15 23:32:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:20,704 INFO L225 Difference]: With dead ends: 28356 [2023-12-15 23:32:20,705 INFO L226 Difference]: Without dead ends: 25259 [2023-12-15 23:32:20,718 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 [2023-12-15 23:32:20,719 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 3338 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:20,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3338 Valid, 1235 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:32:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25259 states. [2023-12-15 23:32:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25259 to 7748. [2023-12-15 23:32:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7748 states, 7741 states have (on average 1.3878051931275028) internal successors, (10743), 7747 states have internal predecessors, (10743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 10743 transitions. [2023-12-15 23:32:20,946 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 10743 transitions. Word has length 67 [2023-12-15 23:32:20,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:20,946 INFO L495 AbstractCegarLoop]: Abstraction has 7748 states and 10743 transitions. [2023-12-15 23:32:20,946 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) [2023-12-15 23:32:20,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 10743 transitions. [2023-12-15 23:32:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:32:20,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:20,951 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] [2023-12-15 23:32:20,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:32:20,951 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:20,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1173964284, now seen corresponding path program 1 times [2023-12-15 23:32:20,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:20,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841831069] [2023-12-15 23:32:20,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:20,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:21,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:21,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:21,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841831069] [2023-12-15 23:32:21,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841831069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:21,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:21,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:32:21,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405460132] [2023-12-15 23:32:21,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:21,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:32:21,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:21,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:32:21,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:32:21,149 INFO L87 Difference]: Start difference. First operand 7748 states and 10743 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:21,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:21,926 INFO L93 Difference]: Finished difference Result 24312 states and 34644 transitions. [2023-12-15 23:32:21,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:32:21,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-15 23:32:21,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:21,947 INFO L225 Difference]: With dead ends: 24312 [2023-12-15 23:32:21,948 INFO L226 Difference]: Without dead ends: 19419 [2023-12-15 23:32:21,957 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 [2023-12-15 23:32:21,958 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2571 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2571 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:21,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2571 Valid, 2408 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 23:32:21,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19419 states. [2023-12-15 23:32:22,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19419 to 7613. [2023-12-15 23:32:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7613 states, 7606 states have (on average 1.3875887457270575) internal successors, (10554), 7612 states have internal predecessors, (10554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:22,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7613 states to 7613 states and 10554 transitions. [2023-12-15 23:32:22,114 INFO L78 Accepts]: Start accepts. Automaton has 7613 states and 10554 transitions. Word has length 67 [2023-12-15 23:32:22,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:22,115 INFO L495 AbstractCegarLoop]: Abstraction has 7613 states and 10554 transitions. [2023-12-15 23:32:22,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:22,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7613 states and 10554 transitions. [2023-12-15 23:32:22,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-15 23:32:22,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:22,120 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] [2023-12-15 23:32:22,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:32:22,120 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)] === [2023-12-15 23:32:22,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1514144732, now seen corresponding path program 1 times [2023-12-15 23:32:22,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:22,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153559775] [2023-12-15 23:32:22,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:22,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:22,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:22,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153559775] [2023-12-15 23:32:22,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153559775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:22,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:22,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:22,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205127828] [2023-12-15 23:32:22,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:22,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:32:22,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:22,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:32:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:32:22,335 INFO L87 Difference]: Start difference. First operand 7613 states and 10554 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) [2023-12-15 23:32:23,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:23,032 INFO L93 Difference]: Finished difference Result 20856 states and 29578 transitions. [2023-12-15 23:32:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 23:32:23,033 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 [2023-12-15 23:32:23,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:23,050 INFO L225 Difference]: With dead ends: 20856 [2023-12-15 23:32:23,051 INFO L226 Difference]: Without dead ends: 15463 [2023-12-15 23:32:23,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-15 23:32:23,059 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2516 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:23,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 1851 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 23:32:23,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15463 states. [2023-12-15 23:32:23,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15463 to 7286. [2023-12-15 23:32:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7286 states, 7279 states have (on average 1.3863168017584833) internal successors, (10091), 7285 states have internal predecessors, (10091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7286 states to 7286 states and 10091 transitions. [2023-12-15 23:32:23,173 INFO L78 Accepts]: Start accepts. Automaton has 7286 states and 10091 transitions. Word has length 67 [2023-12-15 23:32:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:23,174 INFO L495 AbstractCegarLoop]: Abstraction has 7286 states and 10091 transitions. [2023-12-15 23:32:23,174 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) [2023-12-15 23:32:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7286 states and 10091 transitions. [2023-12-15 23:32:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:32:23,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:23,178 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] [2023-12-15 23:32:23,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:32:23,179 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:23,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:23,179 INFO L85 PathProgramCache]: Analyzing trace with hash -906901590, now seen corresponding path program 1 times [2023-12-15 23:32:23,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:23,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34105503] [2023-12-15 23:32:23,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:23,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:23,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:23,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:23,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34105503] [2023-12-15 23:32:23,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34105503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:23,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:23,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 23:32:23,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886372136] [2023-12-15 23:32:23,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:23,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 23:32:23,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:23,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 23:32:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 23:32:23,610 INFO L87 Difference]: Start difference. First operand 7286 states and 10091 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2023-12-15 23:32:24,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:24,353 INFO L93 Difference]: Finished difference Result 36643 states and 52525 transitions. [2023-12-15 23:32:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:32:24,354 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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 [2023-12-15 23:32:24,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:24,390 INFO L225 Difference]: With dead ends: 36643 [2023-12-15 23:32:24,390 INFO L226 Difference]: Without dead ends: 31715 [2023-12-15 23:32:24,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2023-12-15 23:32:24,404 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 4729 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4729 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:24,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4729 Valid, 5513 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:32:24,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31715 states. [2023-12-15 23:32:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31715 to 6953. [2023-12-15 23:32:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 6948 states have (on average 1.3890328151986182) internal successors, (9651), 6952 states have internal predecessors, (9651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 9651 transitions. [2023-12-15 23:32:24,598 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 9651 transitions. Word has length 68 [2023-12-15 23:32:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:24,598 INFO L495 AbstractCegarLoop]: Abstraction has 6953 states and 9651 transitions. [2023-12-15 23:32:24,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2023-12-15 23:32:24,598 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 9651 transitions. [2023-12-15 23:32:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:32:24,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:24,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:24,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:32:24,603 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:24,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:24,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1518478363, now seen corresponding path program 1 times [2023-12-15 23:32:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:24,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833299003] [2023-12-15 23:32:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:24,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:24,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:24,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833299003] [2023-12-15 23:32:24,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833299003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:24,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:24,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:32:24,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258452852] [2023-12-15 23:32:24,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:24,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 23:32:24,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:24,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 23:32:24,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-15 23:32:24,874 INFO L87 Difference]: Start difference. First operand 6953 states and 9651 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 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) [2023-12-15 23:32:25,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:25,419 INFO L93 Difference]: Finished difference Result 27771 states and 39761 transitions. [2023-12-15 23:32:25,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:32:25,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 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 [2023-12-15 23:32:25,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:25,443 INFO L225 Difference]: With dead ends: 27771 [2023-12-15 23:32:25,443 INFO L226 Difference]: Without dead ends: 22878 [2023-12-15 23:32:25,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:32:25,454 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 2903 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2903 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:25,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2903 Valid, 3658 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:32:25,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22878 states. [2023-12-15 23:32:25,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22878 to 6705. [2023-12-15 23:32:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6705 states, 6701 states have (on average 1.3866587076555739) internal successors, (9292), 6704 states have internal predecessors, (9292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 9292 transitions. [2023-12-15 23:32:25,586 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 9292 transitions. Word has length 68 [2023-12-15 23:32:25,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:25,586 INFO L495 AbstractCegarLoop]: Abstraction has 6705 states and 9292 transitions. [2023-12-15 23:32:25,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 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) [2023-12-15 23:32:25,587 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 9292 transitions. [2023-12-15 23:32:25,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 23:32:25,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:25,590 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] [2023-12-15 23:32:25,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 23:32:25,590 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:25,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:25,590 INFO L85 PathProgramCache]: Analyzing trace with hash -289412261, now seen corresponding path program 1 times [2023-12-15 23:32:25,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:25,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818561036] [2023-12-15 23:32:25,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:25,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:26,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:26,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:26,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818561036] [2023-12-15 23:32:26,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818561036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:26,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:26,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:32:26,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704115059] [2023-12-15 23:32:26,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:26,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:32:26,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:26,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:32:26,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:32:26,065 INFO L87 Difference]: Start difference. First operand 6705 states and 9292 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:27,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:27,640 INFO L93 Difference]: Finished difference Result 56616 states and 81378 transitions. [2023-12-15 23:32:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-15 23:32:27,640 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-15 23:32:27,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:27,705 INFO L225 Difference]: With dead ends: 56616 [2023-12-15 23:32:27,705 INFO L226 Difference]: Without dead ends: 51824 [2023-12-15 23:32:27,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2023-12-15 23:32:27,724 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 4529 mSDsluCounter, 7527 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4529 SdHoareTripleChecker+Valid, 8310 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:27,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4529 Valid, 8310 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:32:27,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51824 states. [2023-12-15 23:32:28,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51824 to 6522. [2023-12-15 23:32:28,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6519 states have (on average 1.3891701181162754) internal successors, (9056), 6521 states have internal predecessors, (9056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 9056 transitions. [2023-12-15 23:32:28,061 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 9056 transitions. Word has length 68 [2023-12-15 23:32:28,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:28,061 INFO L495 AbstractCegarLoop]: Abstraction has 6522 states and 9056 transitions. [2023-12-15 23:32:28,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 9056 transitions. [2023-12-15 23:32:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 23:32:28,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:28,065 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] [2023-12-15 23:32:28,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 23:32:28,065 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:32:28,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1473571080, now seen corresponding path program 1 times [2023-12-15 23:32:28,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:28,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582825337] [2023-12-15 23:32:28,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:28,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:28,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:28,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582825337] [2023-12-15 23:32:28,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582825337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:28,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:28,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:28,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514986549] [2023-12-15 23:32:28,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:28,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:28,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:28,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:28,105 INFO L87 Difference]: Start difference. First operand 6522 states and 9056 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:28,181 INFO L93 Difference]: Finished difference Result 13255 states and 18685 transitions. [2023-12-15 23:32:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:28,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-15 23:32:28,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:28,189 INFO L225 Difference]: With dead ends: 13255 [2023-12-15 23:32:28,189 INFO L226 Difference]: Without dead ends: 9244 [2023-12-15 23:32:28,193 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 [2023-12-15 23:32:28,193 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 367 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:28,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 504 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:28,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2023-12-15 23:32:28,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9215. [2023-12-15 23:32:28,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9215 states, 9214 states have (on average 1.4152376817885826) internal successors, (13040), 9214 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9215 states to 9215 states and 13040 transitions. [2023-12-15 23:32:28,276 INFO L78 Accepts]: Start accepts. Automaton has 9215 states and 13040 transitions. Word has length 70 [2023-12-15 23:32:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:28,277 INFO L495 AbstractCegarLoop]: Abstraction has 9215 states and 13040 transitions. [2023-12-15 23:32:28,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9215 states and 13040 transitions. [2023-12-15 23:32:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-15 23:32:28,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:28,288 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] [2023-12-15 23:32:28,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 23:32:28,289 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)] === [2023-12-15 23:32:28,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1512901918, now seen corresponding path program 1 times [2023-12-15 23:32:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747851269] [2023-12-15 23:32:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:28,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:28,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:28,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747851269] [2023-12-15 23:32:28,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747851269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:28,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:28,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231091490] [2023-12-15 23:32:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:28,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:32:28,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:32:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:32:28,376 INFO L87 Difference]: Start difference. First operand 9215 states and 13040 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:28,517 INFO L93 Difference]: Finished difference Result 47160 states and 68530 transitions. [2023-12-15 23:32:28,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:32:28,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2023-12-15 23:32:28,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:28,558 INFO L225 Difference]: With dead ends: 47160 [2023-12-15 23:32:28,558 INFO L226 Difference]: Without dead ends: 39571 [2023-12-15 23:32:28,574 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 [2023-12-15 23:32:28,575 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 2102 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:28,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 1156 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39571 states. [2023-12-15 23:32:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39571 to 16802. [2023-12-15 23:32:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16802 states, 16801 states have (on average 1.4205702041545145) internal successors, (23867), 16801 states have internal predecessors, (23867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16802 states to 16802 states and 23867 transitions. [2023-12-15 23:32:28,858 INFO L78 Accepts]: Start accepts. Automaton has 16802 states and 23867 transitions. Word has length 83 [2023-12-15 23:32:28,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:28,858 INFO L495 AbstractCegarLoop]: Abstraction has 16802 states and 23867 transitions. [2023-12-15 23:32:28,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:28,858 INFO L276 IsEmpty]: Start isEmpty. Operand 16802 states and 23867 transitions. [2023-12-15 23:32:28,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-15 23:32:28,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:28,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:28,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 23:32:28,868 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)] === [2023-12-15 23:32:28,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:28,869 INFO L85 PathProgramCache]: Analyzing trace with hash -344328049, now seen corresponding path program 1 times [2023-12-15 23:32:28,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:28,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777685967] [2023-12-15 23:32:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:28,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:28,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:28,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777685967] [2023-12-15 23:32:28,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777685967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:28,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:28,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:28,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758309483] [2023-12-15 23:32:28,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:28,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:32:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:28,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:32:28,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:32:28,953 INFO L87 Difference]: Start difference. First operand 16802 states and 23867 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:29,141 INFO L93 Difference]: Finished difference Result 28596 states and 40586 transitions. [2023-12-15 23:32:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:32:29,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-15 23:32:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:29,161 INFO L225 Difference]: With dead ends: 28596 [2023-12-15 23:32:29,161 INFO L226 Difference]: Without dead ends: 19350 [2023-12-15 23:32:29,171 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 [2023-12-15 23:32:29,172 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 846 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:29,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1444 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:32:29,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2023-12-15 23:32:29,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 14256. [2023-12-15 23:32:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14256 states, 14255 states have (on average 1.4006313574184497) internal successors, (19966), 14255 states have internal predecessors, (19966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:29,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14256 states to 14256 states and 19966 transitions. [2023-12-15 23:32:29,532 INFO L78 Accepts]: Start accepts. Automaton has 14256 states and 19966 transitions. Word has length 84 [2023-12-15 23:32:29,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:29,532 INFO L495 AbstractCegarLoop]: Abstraction has 14256 states and 19966 transitions. [2023-12-15 23:32:29,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:29,532 INFO L276 IsEmpty]: Start isEmpty. Operand 14256 states and 19966 transitions. [2023-12-15 23:32:29,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-15 23:32:29,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:29,542 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] [2023-12-15 23:32:29,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 23:32:29,542 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)] === [2023-12-15 23:32:29,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:29,543 INFO L85 PathProgramCache]: Analyzing trace with hash -806089270, now seen corresponding path program 1 times [2023-12-15 23:32:29,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:29,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108057442] [2023-12-15 23:32:29,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:29,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:29,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:29,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108057442] [2023-12-15 23:32:29,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108057442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:29,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:29,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:29,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220943133] [2023-12-15 23:32:29,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:29,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:29,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:29,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:29,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:29,615 INFO L87 Difference]: Start difference. First operand 14256 states and 19966 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2023-12-15 23:32:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:29,664 INFO L93 Difference]: Finished difference Result 21479 states and 30130 transitions. [2023-12-15 23:32:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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 [2023-12-15 23:32:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:29,679 INFO L225 Difference]: With dead ends: 21479 [2023-12-15 23:32:29,679 INFO L226 Difference]: Without dead ends: 12770 [2023-12-15 23:32:29,687 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 [2023-12-15 23:32:29,688 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 236 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 893 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 [2023-12-15 23:32:29,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 893 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:29,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12770 states. [2023-12-15 23:32:29,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12770 to 12768. [2023-12-15 23:32:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12768 states, 12767 states have (on average 1.3870133939061644) internal successors, (17708), 12767 states have internal predecessors, (17708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12768 states to 12768 states and 17708 transitions. [2023-12-15 23:32:29,818 INFO L78 Accepts]: Start accepts. Automaton has 12768 states and 17708 transitions. Word has length 85 [2023-12-15 23:32:29,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:29,818 INFO L495 AbstractCegarLoop]: Abstraction has 12768 states and 17708 transitions. [2023-12-15 23:32:29,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2023-12-15 23:32:29,818 INFO L276 IsEmpty]: Start isEmpty. Operand 12768 states and 17708 transitions. [2023-12-15 23:32:29,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-15 23:32:29,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:29,827 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] [2023-12-15 23:32:29,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-15 23:32:29,828 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)] === [2023-12-15 23:32:29,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash 370256656, now seen corresponding path program 1 times [2023-12-15 23:32:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:29,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849901349] [2023-12-15 23:32:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:29,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849901349] [2023-12-15 23:32:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849901349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:29,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:29,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:29,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430815303] [2023-12-15 23:32:29,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:29,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:29,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:29,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:29,909 INFO L87 Difference]: Start difference. First operand 12768 states and 17708 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2023-12-15 23:32:29,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:29,988 INFO L93 Difference]: Finished difference Result 34624 states and 48490 transitions. [2023-12-15 23:32:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:29,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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 [2023-12-15 23:32:29,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:30,012 INFO L225 Difference]: With dead ends: 34624 [2023-12-15 23:32:30,012 INFO L226 Difference]: Without dead ends: 23346 [2023-12-15 23:32:30,024 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 [2023-12-15 23:32:30,025 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 128 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 840 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 [2023-12-15 23:32:30,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23346 states. [2023-12-15 23:32:30,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23346 to 21912. [2023-12-15 23:32:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21912 states, 21911 states have (on average 1.3871571356852723) internal successors, (30394), 21911 states have internal predecessors, (30394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21912 states to 21912 states and 30394 transitions. [2023-12-15 23:32:30,245 INFO L78 Accepts]: Start accepts. Automaton has 21912 states and 30394 transitions. Word has length 85 [2023-12-15 23:32:30,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:30,246 INFO L495 AbstractCegarLoop]: Abstraction has 21912 states and 30394 transitions. [2023-12-15 23:32:30,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2023-12-15 23:32:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 21912 states and 30394 transitions. [2023-12-15 23:32:30,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 23:32:30,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:30,254 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] [2023-12-15 23:32:30,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-15 23:32:30,254 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)] === [2023-12-15 23:32:30,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:30,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1136394572, now seen corresponding path program 1 times [2023-12-15 23:32:30,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:30,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018817075] [2023-12-15 23:32:30,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:30,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:30,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:30,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018817075] [2023-12-15 23:32:30,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018817075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:30,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:30,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125386785] [2023-12-15 23:32:30,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:30,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:30,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:30,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:30,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:30,308 INFO L87 Difference]: Start difference. First operand 21912 states and 30394 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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) [2023-12-15 23:32:30,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:30,381 INFO L93 Difference]: Finished difference Result 30386 states and 42202 transitions. [2023-12-15 23:32:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:30,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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 [2023-12-15 23:32:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:30,402 INFO L225 Difference]: With dead ends: 30386 [2023-12-15 23:32:30,402 INFO L226 Difference]: Without dead ends: 17906 [2023-12-15 23:32:30,414 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 [2023-12-15 23:32:30,414 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 227 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 908 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 [2023-12-15 23:32:30,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 908 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17906 states. [2023-12-15 23:32:30,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17906 to 17904. [2023-12-15 23:32:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17904 states, 17903 states have (on average 1.3771993520638999) internal successors, (24656), 17903 states have internal predecessors, (24656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:30,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17904 states to 17904 states and 24656 transitions. [2023-12-15 23:32:30,731 INFO L78 Accepts]: Start accepts. Automaton has 17904 states and 24656 transitions. Word has length 86 [2023-12-15 23:32:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:30,731 INFO L495 AbstractCegarLoop]: Abstraction has 17904 states and 24656 transitions. [2023-12-15 23:32:30,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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) [2023-12-15 23:32:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 17904 states and 24656 transitions. [2023-12-15 23:32:30,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 23:32:30,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:30,754 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] [2023-12-15 23:32:30,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-15 23:32:30,755 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)] === [2023-12-15 23:32:30,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:30,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1946752819, now seen corresponding path program 1 times [2023-12-15 23:32:30,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:30,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300049826] [2023-12-15 23:32:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:30,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:30,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:30,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:30,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300049826] [2023-12-15 23:32:30,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300049826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:30,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:30,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:30,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106676724] [2023-12-15 23:32:30,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:30,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:30,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:30,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:30,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:30,828 INFO L87 Difference]: Start difference. First operand 17904 states and 24656 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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) [2023-12-15 23:32:30,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:30,950 INFO L93 Difference]: Finished difference Result 49728 states and 68830 transitions. [2023-12-15 23:32:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:30,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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 [2023-12-15 23:32:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:30,986 INFO L225 Difference]: With dead ends: 49728 [2023-12-15 23:32:30,986 INFO L226 Difference]: Without dead ends: 33266 [2023-12-15 23:32:31,004 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 [2023-12-15 23:32:31,004 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 116 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:31,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 822 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:31,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33266 states. [2023-12-15 23:32:31,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33266 to 31048. [2023-12-15 23:32:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31048 states, 31047 states have (on average 1.3701806937868393) internal successors, (42540), 31047 states have internal predecessors, (42540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31048 states to 31048 states and 42540 transitions. [2023-12-15 23:32:31,318 INFO L78 Accepts]: Start accepts. Automaton has 31048 states and 42540 transitions. Word has length 86 [2023-12-15 23:32:31,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:31,318 INFO L495 AbstractCegarLoop]: Abstraction has 31048 states and 42540 transitions. [2023-12-15 23:32:31,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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) [2023-12-15 23:32:31,319 INFO L276 IsEmpty]: Start isEmpty. Operand 31048 states and 42540 transitions. [2023-12-15 23:32:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 23:32:31,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:31,324 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] [2023-12-15 23:32:31,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-15 23:32:31,326 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)] === [2023-12-15 23:32:31,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1207527962, now seen corresponding path program 1 times [2023-12-15 23:32:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:31,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287712032] [2023-12-15 23:32:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:31,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:31,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287712032] [2023-12-15 23:32:31,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287712032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:31,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:31,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072086435] [2023-12-15 23:32:31,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:31,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:31,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:31,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:31,369 INFO L87 Difference]: Start difference. First operand 31048 states and 42540 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) [2023-12-15 23:32:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:31,459 INFO L93 Difference]: Finished difference Result 38012 states and 52148 transitions. [2023-12-15 23:32:31,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:31,459 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 [2023-12-15 23:32:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:31,488 INFO L225 Difference]: With dead ends: 38012 [2023-12-15 23:32:31,489 INFO L226 Difference]: Without dead ends: 25407 [2023-12-15 23:32:31,502 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 [2023-12-15 23:32:31,503 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 184 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 866 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 [2023-12-15 23:32:31,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 866 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:31,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25407 states. [2023-12-15 23:32:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25407 to 25405. [2023-12-15 23:32:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25405 states, 25404 states have (on average 1.367816091954023) internal successors, (34748), 25404 states have internal predecessors, (34748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25405 states to 25405 states and 34748 transitions. [2023-12-15 23:32:31,761 INFO L78 Accepts]: Start accepts. Automaton has 25405 states and 34748 transitions. Word has length 87 [2023-12-15 23:32:31,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:31,761 INFO L495 AbstractCegarLoop]: Abstraction has 25405 states and 34748 transitions. [2023-12-15 23:32:31,761 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) [2023-12-15 23:32:31,761 INFO L276 IsEmpty]: Start isEmpty. Operand 25405 states and 34748 transitions. [2023-12-15 23:32:31,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 23:32:31,767 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:31,767 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] [2023-12-15 23:32:31,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-15 23:32:31,767 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)] === [2023-12-15 23:32:31,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:31,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1794879483, now seen corresponding path program 1 times [2023-12-15 23:32:31,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:31,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486855595] [2023-12-15 23:32:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:31,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:31,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:31,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:31,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486855595] [2023-12-15 23:32:31,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486855595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:31,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:31,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:31,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734027737] [2023-12-15 23:32:31,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:31,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:31,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:31,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:31,945 INFO L87 Difference]: Start difference. First operand 25405 states and 34748 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) [2023-12-15 23:32:32,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:32,095 INFO L93 Difference]: Finished difference Result 70577 states and 96686 transitions. [2023-12-15 23:32:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:32,096 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 [2023-12-15 23:32:32,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:32,151 INFO L225 Difference]: With dead ends: 70577 [2023-12-15 23:32:32,151 INFO L226 Difference]: Without dead ends: 46551 [2023-12-15 23:32:32,179 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 [2023-12-15 23:32:32,179 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 137 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 861 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 [2023-12-15 23:32:32,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 861 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:32,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46551 states. [2023-12-15 23:32:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46551 to 43125. [2023-12-15 23:32:32,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43125 states, 43124 states have (on average 1.3593358686578239) internal successors, (58620), 43124 states have internal predecessors, (58620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:32,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43125 states to 43125 states and 58620 transitions. [2023-12-15 23:32:32,704 INFO L78 Accepts]: Start accepts. Automaton has 43125 states and 58620 transitions. Word has length 88 [2023-12-15 23:32:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:32,704 INFO L495 AbstractCegarLoop]: Abstraction has 43125 states and 58620 transitions. [2023-12-15 23:32:32,704 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) [2023-12-15 23:32:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 43125 states and 58620 transitions. [2023-12-15 23:32:32,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 23:32:32,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:32,709 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] [2023-12-15 23:32:32,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-15 23:32:32,709 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)] === [2023-12-15 23:32:32,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:32,710 INFO L85 PathProgramCache]: Analyzing trace with hash 851067157, now seen corresponding path program 1 times [2023-12-15 23:32:32,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:32,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002497168] [2023-12-15 23:32:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:32,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:32,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:32,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002497168] [2023-12-15 23:32:32,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002497168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:32,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:32,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:32,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827436599] [2023-12-15 23:32:32,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:32,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:32,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:32,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:32,773 INFO L87 Difference]: Start difference. First operand 43125 states and 58620 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) [2023-12-15 23:32:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:33,121 INFO L93 Difference]: Finished difference Result 122937 states and 167070 transitions. [2023-12-15 23:32:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:33,121 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 [2023-12-15 23:32:33,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:33,231 INFO L225 Difference]: With dead ends: 122937 [2023-12-15 23:32:33,231 INFO L226 Difference]: Without dead ends: 81191 [2023-12-15 23:32:33,278 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 [2023-12-15 23:32:33,279 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 103 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:33,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 809 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:32:33,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81191 states. [2023-12-15 23:32:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81191 to 75557. [2023-12-15 23:32:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75557 states, 75556 states have (on average 1.3504685266557255) internal successors, (102036), 75556 states have internal predecessors, (102036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75557 states to 75557 states and 102036 transitions. [2023-12-15 23:32:34,944 INFO L78 Accepts]: Start accepts. Automaton has 75557 states and 102036 transitions. Word has length 88 [2023-12-15 23:32:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:34,944 INFO L495 AbstractCegarLoop]: Abstraction has 75557 states and 102036 transitions. [2023-12-15 23:32:34,944 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) [2023-12-15 23:32:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 75557 states and 102036 transitions. [2023-12-15 23:32:34,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 23:32:34,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:34,957 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] [2023-12-15 23:32:34,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-15 23:32:34,957 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)] === [2023-12-15 23:32:34,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash -760977791, now seen corresponding path program 1 times [2023-12-15 23:32:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:34,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856621982] [2023-12-15 23:32:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:34,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:35,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:35,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856621982] [2023-12-15 23:32:35,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856621982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:35,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:35,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:35,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368273896] [2023-12-15 23:32:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:35,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:32:35,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:32:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:32:35,097 INFO L87 Difference]: Start difference. First operand 75557 states and 102036 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:35,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:35,607 INFO L93 Difference]: Finished difference Result 161537 states and 215020 transitions. [2023-12-15 23:32:35,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:32:35,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-15 23:32:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:35,959 INFO L225 Difference]: With dead ends: 161537 [2023-12-15 23:32:35,959 INFO L226 Difference]: Without dead ends: 161535 [2023-12-15 23:32:35,975 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 [2023-12-15 23:32:35,978 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 437 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:35,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 2084 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:32:36,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161535 states. [2023-12-15 23:32:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161535 to 81797. [2023-12-15 23:32:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81797 states, 81796 states have (on average 1.3237322118441) internal successors, (108276), 81796 states have internal predecessors, (108276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81797 states to 81797 states and 108276 transitions. [2023-12-15 23:32:37,362 INFO L78 Accepts]: Start accepts. Automaton has 81797 states and 108276 transitions. Word has length 90 [2023-12-15 23:32:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:37,362 INFO L495 AbstractCegarLoop]: Abstraction has 81797 states and 108276 transitions. [2023-12-15 23:32:37,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 81797 states and 108276 transitions. [2023-12-15 23:32:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 23:32:37,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:37,380 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] [2023-12-15 23:32:37,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-15 23:32:37,381 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)] === [2023-12-15 23:32:37,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1699029251, now seen corresponding path program 1 times [2023-12-15 23:32:37,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:37,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784060642] [2023-12-15 23:32:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:37,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:37,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784060642] [2023-12-15 23:32:37,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784060642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:37,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:37,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:32:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707893430] [2023-12-15 23:32:37,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:37,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:32:37,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:37,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:32:37,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:32:37,454 INFO L87 Difference]: Start difference. First operand 81797 states and 108276 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) [2023-12-15 23:32:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:38,301 INFO L93 Difference]: Finished difference Result 204529 states and 270414 transitions. [2023-12-15 23:32:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:32:38,302 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 [2023-12-15 23:32:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:38,475 INFO L225 Difference]: With dead ends: 204529 [2023-12-15 23:32:38,476 INFO L226 Difference]: Without dead ends: 124111 [2023-12-15 23:32:38,510 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 [2023-12-15 23:32:38,510 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 323 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:38,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 546 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:32:38,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124111 states. [2023-12-15 23:32:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124111 to 123069. [2023-12-15 23:32:39,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123069 states, 123068 states have (on average 1.3051321220788508) internal successors, (160620), 123068 states have internal predecessors, (160620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123069 states to 123069 states and 160620 transitions. [2023-12-15 23:32:40,212 INFO L78 Accepts]: Start accepts. Automaton has 123069 states and 160620 transitions. Word has length 91 [2023-12-15 23:32:40,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:40,212 INFO L495 AbstractCegarLoop]: Abstraction has 123069 states and 160620 transitions. [2023-12-15 23:32:40,212 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) [2023-12-15 23:32:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 123069 states and 160620 transitions. [2023-12-15 23:32:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 23:32:40,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:40,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:40,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-15 23:32:40,217 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)] === [2023-12-15 23:32:40,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:40,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1379911323, now seen corresponding path program 1 times [2023-12-15 23:32:40,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:40,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806855153] [2023-12-15 23:32:40,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:40,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:40,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:40,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806855153] [2023-12-15 23:32:40,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806855153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:32:40,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:32:40,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:32:40,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990794781] [2023-12-15 23:32:40,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:32:40,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:32:40,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:40,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:32:40,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:32:40,321 INFO L87 Difference]: Start difference. First operand 123069 states and 160620 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:41,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:41,090 INFO L93 Difference]: Finished difference Result 191799 states and 251385 transitions. [2023-12-15 23:32:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:32:41,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-15 23:32:41,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:41,307 INFO L225 Difference]: With dead ends: 191799 [2023-12-15 23:32:41,308 INFO L226 Difference]: Without dead ends: 164977 [2023-12-15 23:32:41,356 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 [2023-12-15 23:32:41,357 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1470 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:41,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 1380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:32:41,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164977 states. [2023-12-15 23:32:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164977 to 141401. [2023-12-15 23:32:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141401 states, 141400 states have (on average 1.3027157001414427) internal successors, (184204), 141400 states have internal predecessors, (184204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141401 states to 141401 states and 184204 transitions. [2023-12-15 23:32:43,388 INFO L78 Accepts]: Start accepts. Automaton has 141401 states and 184204 transitions. Word has length 92 [2023-12-15 23:32:43,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:43,388 INFO L495 AbstractCegarLoop]: Abstraction has 141401 states and 184204 transitions. [2023-12-15 23:32:43,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:43,388 INFO L276 IsEmpty]: Start isEmpty. Operand 141401 states and 184204 transitions. [2023-12-15 23:32:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 23:32:43,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:43,408 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 23:32:43,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-15 23:32:43,408 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)] === [2023-12-15 23:32:43,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash -135962477, now seen corresponding path program 1 times [2023-12-15 23:32:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:43,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121146981] [2023-12-15 23:32:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:43,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:43,700 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:43,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:43,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121146981] [2023-12-15 23:32:43,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121146981] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:32:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069863453] [2023-12-15 23:32:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:43,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:32:43,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:32:43,703 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) [2023-12-15 23:32:43,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 23:32:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:43,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-15 23:32:43,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:32:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:44,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:32:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:45,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069863453] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:32:45,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:32:45,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2023-12-15 23:32:45,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699490248] [2023-12-15 23:32:45,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:32:45,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-15 23:32:45,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:45,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-15 23:32:45,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-12-15 23:32:45,353 INFO L87 Difference]: Start difference. First operand 141401 states and 184204 transitions. Second operand has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 22 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:49,061 INFO L93 Difference]: Finished difference Result 474816 states and 611118 transitions. [2023-12-15 23:32:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-15 23:32:49,061 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 22 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-15 23:32:49,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:49,846 INFO L225 Difference]: With dead ends: 474816 [2023-12-15 23:32:49,846 INFO L226 Difference]: Without dead ends: 415738 [2023-12-15 23:32:49,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=967, Invalid=2815, Unknown=0, NotChecked=0, Total=3782 [2023-12-15 23:32:49,953 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 4097 mSDsluCounter, 4568 mSDsCounter, 0 mSdLazyCounter, 3648 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 5112 SdHoareTripleChecker+Invalid, 3686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:49,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4097 Valid, 5112 Invalid, 3686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3648 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 23:32:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415738 states. [2023-12-15 23:32:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415738 to 229909. [2023-12-15 23:32:53,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229909 states, 229908 states have (on average 1.2990631035022704) internal successors, (298665), 229908 states have internal predecessors, (298665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229909 states to 229909 states and 298665 transitions. [2023-12-15 23:32:54,464 INFO L78 Accepts]: Start accepts. Automaton has 229909 states and 298665 transitions. Word has length 115 [2023-12-15 23:32:54,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:32:54,464 INFO L495 AbstractCegarLoop]: Abstraction has 229909 states and 298665 transitions. [2023-12-15 23:32:54,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.173913043478262) internal successors, (280), 22 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:54,464 INFO L276 IsEmpty]: Start isEmpty. Operand 229909 states and 298665 transitions. [2023-12-15 23:32:54,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 23:32:54,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:32:54,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:32:54,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 23:32:54,702 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,SelfDestructingSolverStorable33 [2023-12-15 23:32:54,705 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)] === [2023-12-15 23:32:54,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:32:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1149002671, now seen corresponding path program 1 times [2023-12-15 23:32:54,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:32:54,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275365108] [2023-12-15 23:32:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:54,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:32:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:54,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:32:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275365108] [2023-12-15 23:32:54,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275365108] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:32:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51211013] [2023-12-15 23:32:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:32:54,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:32:54,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:32:54,800 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) [2023-12-15 23:32:54,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 23:32:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:32:55,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 23:32:55,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:32:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:55,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:32:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:32:55,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51211013] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:32:55,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:32:55,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-15 23:32:55,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911290787] [2023-12-15 23:32:55,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:32:55,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 23:32:55,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:32:55,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 23:32:55,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-15 23:32:55,443 INFO L87 Difference]: Start difference. First operand 229909 states and 298665 transitions. Second operand has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:32:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:32:58,681 INFO L93 Difference]: Finished difference Result 598956 states and 778794 transitions. [2023-12-15 23:32:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:32:58,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 22.0) internal successors, (308), 14 states have internal predecessors, (308), 0 states have call successors, (0), 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 115 [2023-12-15 23:32:58,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:32:59,396 INFO L225 Difference]: With dead ends: 598956 [2023-12-15 23:32:59,397 INFO L226 Difference]: Without dead ends: 370626 [2023-12-15 23:32:59,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:32:59,521 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 4949 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:32:59,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 1495 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:32:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370626 states. Received shutdown request... [2023-12-15 23:33:00,390 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-15 23:33:00,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 23:33:00,412 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:33:00,412 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:33:00,596 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,SelfDestructingSolverStorable34 [2023-12-15 23:33:00,597 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-15 23:33:00,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-15 23:33:00,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-15 23:33:00,599 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-15 23:33:00,599 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-15 23:33:00,599 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-15 23:33:00,599 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-15 23:33:00,605 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:33:00,607 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:33:00,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:33:00 BoogieIcfgContainer [2023-12-15 23:33:00,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:33:00,613 INFO L158 Benchmark]: Toolchain (without parser) took 55416.82ms. Allocated memory was 368.1MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 300.2MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2023-12-15 23:33:00,613 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:33:00,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1082.36ms. Allocated memory is still 368.1MB. Free memory was 300.2MB in the beginning and 179.0MB in the end (delta: 121.2MB). Peak memory consumption was 121.6MB. Max. memory is 8.0GB. [2023-12-15 23:33:00,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.74ms. Allocated memory is still 368.1MB. Free memory was 179.0MB in the beginning and 151.3MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-15 23:33:00,620 INFO L158 Benchmark]: Boogie Preprocessor took 308.42ms. Allocated memory is still 368.1MB. Free memory was 151.3MB in the beginning and 297.1MB in the end (delta: -145.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-15 23:33:00,622 INFO L158 Benchmark]: RCFGBuilder took 2492.40ms. Allocated memory was 368.1MB in the beginning and 677.4MB in the end (delta: 309.3MB). Free memory was 297.1MB in the beginning and 550.3MB in the end (delta: -253.2MB). Peak memory consumption was 148.4MB. Max. memory is 8.0GB. [2023-12-15 23:33:00,623 INFO L158 Benchmark]: TraceAbstraction took 51399.43ms. Allocated memory was 677.4MB in the beginning and 7.5GB in the end (delta: 6.8GB). Free memory was 549.2MB in the beginning and 4.6GB in the end (delta: -4.0GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-15 23:33:00,625 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1082.36ms. Allocated memory is still 368.1MB. Free memory was 300.2MB in the beginning and 179.0MB in the end (delta: 121.2MB). Peak memory consumption was 121.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 127.74ms. Allocated memory is still 368.1MB. Free memory was 179.0MB in the beginning and 151.3MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 308.42ms. Allocated memory is still 368.1MB. Free memory was 151.3MB in the beginning and 297.1MB in the end (delta: -145.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * RCFGBuilder took 2492.40ms. Allocated memory was 368.1MB in the beginning and 677.4MB in the end (delta: 309.3MB). Free memory was 297.1MB in the beginning and 550.3MB in the end (delta: -253.2MB). Peak memory consumption was 148.4MB. Max. memory is 8.0GB. * TraceAbstraction took 51399.43ms. Allocated memory was 677.4MB in the beginning and 7.5GB in the end (delta: 6.8GB). Free memory was 549.2MB in the beginning and 4.6GB in the end (delta: -4.0GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 635). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1200]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1200). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1376]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1376). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1461]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1461). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1727). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1812]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1812). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 1987]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1987). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1100 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 51.3s, OverallIterations: 35, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 25.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74947 SdHoareTripleChecker+Valid, 10.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74947 mSDsluCounter, 61580 SdHoareTripleChecker+Invalid, 8.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40594 mSDsCounter, 1180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19471 IncrementalHoareTripleChecker+Invalid, 20651 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1180 mSolverCounterUnsat, 20986 mSDtfsCounter, 19471 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 829 GetRequests, 493 SyntacticMatches, 1 SemanticMatches, 335 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1530 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229909occurred in iteration=34, InterpolantAutomatonStates: 304, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.6s AutomataMinimizationTime, 35 MinimizatonAttempts, 557275 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 2881 NumberOfCodeBlocks, 2881 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3072 ConstructedInterpolants, 0 QuantifiedInterpolants, 17556 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1555 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 39 InterpolantComputations, 33 PerfectInterpolantSequences, 57/90 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown