/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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:34:37,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:34:37,792 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 23:34:37,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:34:37,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:34:37,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:34:37,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:34:37,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:34:37,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:34:37,840 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:34:37,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:34:37,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:34:37,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:34:37,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:34:37,843 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:34:37,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:34:37,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:34:37,843 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:34:37,844 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:34:37,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:34:37,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:34:37,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:34:37,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:34:37,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:34:37,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:34:37,847 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:34:37,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:34:37,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:34:37,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:34:37,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:34:37,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:34:37,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:34:37,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:34:37,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:34:37,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:34:37,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:34:37,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:34:37,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:34:37,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:34:37,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:34:37,851 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:34:37,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:34:37,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:34:37,851 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:34:38,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:34:38,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:34:38,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:34:38,113 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:34:38,114 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:34:38,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-15 23:34:39,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:34:39,513 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:34:39,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-15 23:34:39,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75880a73f/270e56f4778949b7a27fdf14d3002eca/FLAG95f7908a9 [2023-12-15 23:34:39,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75880a73f/270e56f4778949b7a27fdf14d3002eca [2023-12-15 23:34:39,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:34:39,542 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:34:39,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:34:39,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:34:39,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:34:39,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:34:39" (1/1) ... [2023-12-15 23:34:39,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d97df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:39, skipping insertion in model container [2023-12-15 23:34:39,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:34:39" (1/1) ... [2023-12-15 23:34:39,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:34:39,821 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7545,7558] [2023-12-15 23:34:39,839 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10452,10465] [2023-12-15 23:34:39,845 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11543,11556] [2023-12-15 23:34:39,849 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12149,12162] [2023-12-15 23:34:39,857 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13568,13581] [2023-12-15 23:34:39,860 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14174,14187] [2023-12-15 23:34:39,866 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15145,15158] [2023-12-15 23:34:39,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:34:39,915 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:34:39,952 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7545,7558] [2023-12-15 23:34:39,962 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10452,10465] [2023-12-15 23:34:39,967 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11543,11556] [2023-12-15 23:34:39,970 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12149,12162] [2023-12-15 23:34:39,976 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13568,13581] [2023-12-15 23:34:39,986 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14174,14187] [2023-12-15 23:34:39,989 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15145,15158] [2023-12-15 23:34:40,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:34:40,058 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:34:40,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40 WrapperNode [2023-12-15 23:34:40,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:34:40,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:34:40,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:34:40,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:34:40,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,125 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1103 [2023-12-15 23:34:40,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:34:40,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:34:40,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:34:40,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:34:40,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,168 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 23:34:40,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:34:40,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:34:40,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:34:40,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:34:40,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (1/1) ... [2023-12-15 23:34:40,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:34:40,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:34:40,227 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 23:34:40,245 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 23:34:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:34:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:34:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:34:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:34:40,419 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:34:40,421 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:34:41,177 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:34:41,221 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:34:41,222 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-15 23:34:41,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:34:41 BoogieIcfgContainer [2023-12-15 23:34:41,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:34:41,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:34:41,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:34:41,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:34:41,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:34:39" (1/3) ... [2023-12-15 23:34:41,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779f648e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:34:41, skipping insertion in model container [2023-12-15 23:34:41,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:34:40" (2/3) ... [2023-12-15 23:34:41,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779f648e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:34:41, skipping insertion in model container [2023-12-15 23:34:41,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:34:41" (3/3) ... [2023-12-15 23:34:41,229 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-15 23:34:41,241 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:34:41,241 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-15 23:34:41,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:34:41,287 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;@4a4ee340, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:34:41,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-15 23:34:41,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 197 states have (on average 1.83248730964467) internal successors, (361), 204 states have internal predecessors, (361), 0 states have call successors, (0), 0 states 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 23:34:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-15 23:34:41,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:41,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:34:41,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:41,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:41,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1273195572, now seen corresponding path program 1 times [2023-12-15 23:34:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:41,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706169915] [2023-12-15 23:34:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:41,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:34:41,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:41,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706169915] [2023-12-15 23:34:41,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706169915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:41,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:41,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:34:41,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950138095] [2023-12-15 23:34:41,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:41,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:34:41,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:41,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:34:41,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:34:41,784 INFO L87 Difference]: Start difference. First operand has 205 states, 197 states have (on average 1.83248730964467) internal successors, (361), 204 states have internal predecessors, (361), 0 states have call successors, (0), 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 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 23:34:42,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:42,056 INFO L93 Difference]: Finished difference Result 334 states and 565 transitions. [2023-12-15 23:34:42,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:34:42,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2023-12-15 23:34:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:42,067 INFO L225 Difference]: With dead ends: 334 [2023-12-15 23:34:42,068 INFO L226 Difference]: Without dead ends: 183 [2023-12-15 23:34:42,070 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 23:34:42,073 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 854 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:42,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 239 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:34:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-15 23:34:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-12-15 23:34:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 176 states have (on average 1.2727272727272727) internal successors, (224), 182 states have internal predecessors, (224), 0 states have call successors, (0), 0 states 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 23:34:42,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 224 transitions. [2023-12-15 23:34:42,126 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 224 transitions. Word has length 46 [2023-12-15 23:34:42,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:42,127 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 224 transitions. [2023-12-15 23:34:42,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 23:34:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 224 transitions. [2023-12-15 23:34:42,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-15 23:34:42,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:42,135 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] [2023-12-15 23:34:42,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:34:42,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:42,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:42,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1862883361, now seen corresponding path program 1 times [2023-12-15 23:34:42,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:42,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428667026] [2023-12-15 23:34:42,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:42,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:42,385 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 23:34:42,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:42,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428667026] [2023-12-15 23:34:42,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428667026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:42,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:42,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:34:42,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468861688] [2023-12-15 23:34:42,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:42,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:34:42,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:42,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:34:42,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:34:42,389 INFO L87 Difference]: Start difference. First operand 183 states and 224 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states 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 23:34:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:42,506 INFO L93 Difference]: Finished difference Result 306 states and 385 transitions. [2023-12-15 23:34:42,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:34:42,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-15 23:34:42,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:42,511 INFO L225 Difference]: With dead ends: 306 [2023-12-15 23:34:42,511 INFO L226 Difference]: Without dead ends: 167 [2023-12-15 23:34:42,515 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 23:34:42,516 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 576 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:42,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 131 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:34:42,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-15 23:34:42,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2023-12-15 23:34:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 160 states have (on average 1.28125) internal successors, (205), 166 states have internal predecessors, (205), 0 states have call successors, (0), 0 states 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 23:34:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 205 transitions. [2023-12-15 23:34:42,534 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 205 transitions. Word has length 47 [2023-12-15 23:34:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:42,534 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 205 transitions. [2023-12-15 23:34:42,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states 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 23:34:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 205 transitions. [2023-12-15 23:34:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-15 23:34:42,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:42,536 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] [2023-12-15 23:34:42,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:34:42,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:42,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1456528685, now seen corresponding path program 1 times [2023-12-15 23:34:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:42,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183552159] [2023-12-15 23:34:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:42,711 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 23:34:42,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:42,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183552159] [2023-12-15 23:34:42,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183552159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:42,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:42,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 23:34:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178430446] [2023-12-15 23:34:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:42,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:34:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:42,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:34:42,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:34:42,718 INFO L87 Difference]: Start difference. First operand 167 states and 205 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 23:34:42,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:42,859 INFO L93 Difference]: Finished difference Result 374 states and 476 transitions. [2023-12-15 23:34:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:34:42,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2023-12-15 23:34:42,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:42,865 INFO L225 Difference]: With dead ends: 374 [2023-12-15 23:34:42,869 INFO L226 Difference]: Without dead ends: 240 [2023-12-15 23:34:42,870 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 23:34:42,872 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 768 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:42,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 187 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:34:42,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-12-15 23:34:42,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 216. [2023-12-15 23:34:42,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 209 states have (on average 1.3397129186602872) internal successors, (280), 215 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 23:34:42,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 280 transitions. [2023-12-15 23:34:42,890 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 280 transitions. Word has length 48 [2023-12-15 23:34:42,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:42,890 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 280 transitions. [2023-12-15 23:34:42,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 23:34:42,890 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 280 transitions. [2023-12-15 23:34:42,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-15 23:34:42,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:42,891 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] [2023-12-15 23:34:42,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:34:42,892 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 23:34:42,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:42,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1731915121, now seen corresponding path program 1 times [2023-12-15 23:34:42,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:42,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019892575] [2023-12-15 23:34:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:42,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:43,174 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 23:34:43,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:43,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019892575] [2023-12-15 23:34:43,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019892575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:43,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:43,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:34:43,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058702758] [2023-12-15 23:34:43,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:43,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:34:43,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:43,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:34:43,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:34:43,176 INFO L87 Difference]: Start difference. First operand 216 states and 280 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 23:34:43,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:43,604 INFO L93 Difference]: Finished difference Result 531 states and 727 transitions. [2023-12-15 23:34:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:34:43,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-15 23:34:43,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:43,608 INFO L225 Difference]: With dead ends: 531 [2023-12-15 23:34:43,608 INFO L226 Difference]: Without dead ends: 526 [2023-12-15 23:34:43,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:34:43,614 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 945 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:43,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 605 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:34:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-15 23:34:43,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 216. [2023-12-15 23:34:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 209 states have (on average 1.3349282296650717) internal successors, (279), 215 states have internal predecessors, (279), 0 states have call successors, (0), 0 states 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 23:34:43,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 279 transitions. [2023-12-15 23:34:43,631 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 279 transitions. Word has length 49 [2023-12-15 23:34:43,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:43,632 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 279 transitions. [2023-12-15 23:34:43,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 23:34:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 279 transitions. [2023-12-15 23:34:43,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-15 23:34:43,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:43,636 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] [2023-12-15 23:34:43,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:34:43,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:43,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:43,637 INFO L85 PathProgramCache]: Analyzing trace with hash -650855073, now seen corresponding path program 1 times [2023-12-15 23:34:43,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:43,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626449240] [2023-12-15 23:34:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:43,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:43,948 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 23:34:43,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:43,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626449240] [2023-12-15 23:34:43,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626449240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:43,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:43,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:34:43,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720940383] [2023-12-15 23:34:43,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:43,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:34:43,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:43,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:34:43,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:34:43,951 INFO L87 Difference]: Start difference. First operand 216 states and 279 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 23:34:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:44,423 INFO L93 Difference]: Finished difference Result 535 states and 730 transitions. [2023-12-15 23:34:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:34:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-15 23:34:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:44,427 INFO L225 Difference]: With dead ends: 535 [2023-12-15 23:34:44,427 INFO L226 Difference]: Without dead ends: 434 [2023-12-15 23:34:44,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-15 23:34:44,428 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 977 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:44,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 591 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:34:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-12-15 23:34:44,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 216. [2023-12-15 23:34:44,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 209 states have (on average 1.3301435406698565) internal successors, (278), 215 states have internal predecessors, (278), 0 states have call successors, (0), 0 states 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 23:34:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 278 transitions. [2023-12-15 23:34:44,438 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 278 transitions. Word has length 49 [2023-12-15 23:34:44,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:44,438 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 278 transitions. [2023-12-15 23:34:44,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 23:34:44,438 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 278 transitions. [2023-12-15 23:34:44,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-15 23:34:44,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:44,440 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] [2023-12-15 23:34:44,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:34:44,440 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:44,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:44,441 INFO L85 PathProgramCache]: Analyzing trace with hash 622927837, now seen corresponding path program 1 times [2023-12-15 23:34:44,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:44,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713966216] [2023-12-15 23:34:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:44,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:34:44,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:44,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713966216] [2023-12-15 23:34:44,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713966216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:44,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:44,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:34:44,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112051566] [2023-12-15 23:34:44,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:44,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:34:44,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:44,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:34:44,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:34:44,684 INFO L87 Difference]: Start difference. First operand 216 states and 278 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 23:34:44,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:44,924 INFO L93 Difference]: Finished difference Result 460 states and 609 transitions. [2023-12-15 23:34:44,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 23:34:44,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-15 23:34:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:44,927 INFO L225 Difference]: With dead ends: 460 [2023-12-15 23:34:44,927 INFO L226 Difference]: Without dead ends: 336 [2023-12-15 23:34:44,927 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 23:34:44,928 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 758 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:44,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 420 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:34:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-15 23:34:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 216. [2023-12-15 23:34:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 209 states have (on average 1.325358851674641) internal successors, (277), 215 states have internal predecessors, (277), 0 states have call successors, (0), 0 states 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 23:34:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 277 transitions. [2023-12-15 23:34:44,935 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 277 transitions. Word has length 49 [2023-12-15 23:34:44,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:44,936 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 277 transitions. [2023-12-15 23:34:44,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 23:34:44,936 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 277 transitions. [2023-12-15 23:34:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-15 23:34:44,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:44,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:34:44,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:34:44,937 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:44,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:44,938 INFO L85 PathProgramCache]: Analyzing trace with hash 359581070, now seen corresponding path program 1 times [2023-12-15 23:34:44,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:44,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792981790] [2023-12-15 23:34:44,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:44,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:45,388 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 23:34:45,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:45,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792981790] [2023-12-15 23:34:45,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792981790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:45,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:45,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:34:45,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986200499] [2023-12-15 23:34:45,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:45,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 23:34:45,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:45,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 23:34:45,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-15 23:34:45,391 INFO L87 Difference]: Start difference. First operand 216 states and 277 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 23:34:45,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:45,737 INFO L93 Difference]: Finished difference Result 604 states and 831 transitions. [2023-12-15 23:34:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 23:34:45,738 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-15 23:34:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:45,740 INFO L225 Difference]: With dead ends: 604 [2023-12-15 23:34:45,740 INFO L226 Difference]: Without dead ends: 487 [2023-12-15 23:34:45,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:34:45,741 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1155 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:45,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 704 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:34:45,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-12-15 23:34:45,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 183. [2023-12-15 23:34:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 179 states have (on average 1.329608938547486) internal successors, (238), 182 states have internal predecessors, (238), 0 states have call successors, (0), 0 states 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 23:34:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 238 transitions. [2023-12-15 23:34:45,750 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 238 transitions. Word has length 51 [2023-12-15 23:34:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:45,751 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 238 transitions. [2023-12-15 23:34:45,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 23:34:45,751 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 238 transitions. [2023-12-15 23:34:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-15 23:34:45,752 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:45,752 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] [2023-12-15 23:34:45,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:34:45,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:45,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:45,753 INFO L85 PathProgramCache]: Analyzing trace with hash -83474213, now seen corresponding path program 1 times [2023-12-15 23:34:45,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:45,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089980869] [2023-12-15 23:34:45,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:45,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:46,285 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 23:34:46,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:46,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089980869] [2023-12-15 23:34:46,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089980869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:46,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:46,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:34:46,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774765721] [2023-12-15 23:34:46,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:46,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:34:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:46,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:34:46,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:34:46,288 INFO L87 Difference]: Start difference. First operand 183 states and 238 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 23:34:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:46,826 INFO L93 Difference]: Finished difference Result 497 states and 688 transitions. [2023-12-15 23:34:46,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:34:46,826 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-15 23:34:46,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:46,828 INFO L225 Difference]: With dead ends: 497 [2023-12-15 23:34:46,828 INFO L226 Difference]: Without dead ends: 481 [2023-12-15 23:34:46,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2023-12-15 23:34:46,829 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 662 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:46,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1303 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:34:46,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-12-15 23:34:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 167. [2023-12-15 23:34:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 165 states have (on average 1.3272727272727274) internal successors, (219), 166 states have internal predecessors, (219), 0 states have call successors, (0), 0 states 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 23:34:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2023-12-15 23:34:46,836 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 51 [2023-12-15 23:34:46,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:46,836 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2023-12-15 23:34:46,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 23:34:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2023-12-15 23:34:46,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-15 23:34:46,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:46,837 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] [2023-12-15 23:34:46,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:34:46,837 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:46,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:46,838 INFO L85 PathProgramCache]: Analyzing trace with hash -873153248, now seen corresponding path program 1 times [2023-12-15 23:34:46,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:46,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896259789] [2023-12-15 23:34:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:47,108 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 23:34:47,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:47,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896259789] [2023-12-15 23:34:47,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896259789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:47,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:47,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:34:47,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670509406] [2023-12-15 23:34:47,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:47,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 23:34:47,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:47,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 23:34:47,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-15 23:34:47,110 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:34:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:47,411 INFO L93 Difference]: Finished difference Result 318 states and 431 transitions. [2023-12-15 23:34:47,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 23:34:47,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-15 23:34:47,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:47,412 INFO L225 Difference]: With dead ends: 318 [2023-12-15 23:34:47,412 INFO L226 Difference]: Without dead ends: 204 [2023-12-15 23:34:47,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:34:47,413 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 495 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:47,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 352 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:34:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-15 23:34:47,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 167. [2023-12-15 23:34:47,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 165 states have (on average 1.3151515151515152) internal successors, (217), 166 states have internal predecessors, (217), 0 states have call successors, (0), 0 states 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 23:34:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 217 transitions. [2023-12-15 23:34:47,418 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 217 transitions. Word has length 52 [2023-12-15 23:34:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:47,418 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 217 transitions. [2023-12-15 23:34:47,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 23:34:47,418 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 217 transitions. [2023-12-15 23:34:47,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-15 23:34:47,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:47,419 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] [2023-12-15 23:34:47,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:34:47,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:47,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:47,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1645932369, now seen corresponding path program 1 times [2023-12-15 23:34:47,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:47,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413695149] [2023-12-15 23:34:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:47,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:48,122 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 23:34:48,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:48,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413695149] [2023-12-15 23:34:48,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413695149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:48,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:48,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-15 23:34:48,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350956830] [2023-12-15 23:34:48,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:48,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-15 23:34:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-15 23:34:48,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2023-12-15 23:34:48,125 INFO L87 Difference]: Start difference. First operand 167 states and 217 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 23:34:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:48,999 INFO L93 Difference]: Finished difference Result 633 states and 895 transitions. [2023-12-15 23:34:48,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-15 23:34:49,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-15 23:34:49,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:49,002 INFO L225 Difference]: With dead ends: 633 [2023-12-15 23:34:49,003 INFO L226 Difference]: Without dead ends: 627 [2023-12-15 23:34:49,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2023-12-15 23:34:49,004 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 775 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:49,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1883 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:34:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-12-15 23:34:49,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 173. [2023-12-15 23:34:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 171 states have (on average 1.3157894736842106) internal successors, (225), 172 states have internal predecessors, (225), 0 states have call successors, (0), 0 states 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 23:34:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2023-12-15 23:34:49,012 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 54 [2023-12-15 23:34:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:49,013 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2023-12-15 23:34:49,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 23:34:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2023-12-15 23:34:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-15 23:34:49,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:49,013 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] [2023-12-15 23:34:49,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:34:49,014 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:49,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1729762893, now seen corresponding path program 1 times [2023-12-15 23:34:49,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:49,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016786043] [2023-12-15 23:34:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:49,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:49,526 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 23:34:49,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:49,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016786043] [2023-12-15 23:34:49,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016786043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:49,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:49,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 23:34:49,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556405437] [2023-12-15 23:34:49,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:49,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 23:34:49,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:49,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 23:34:49,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-15 23:34:49,528 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 23:34:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:50,352 INFO L93 Difference]: Finished difference Result 833 states and 1182 transitions. [2023-12-15 23:34:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 23:34:50,354 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-15 23:34:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:50,357 INFO L225 Difference]: With dead ends: 833 [2023-12-15 23:34:50,357 INFO L226 Difference]: Without dead ends: 827 [2023-12-15 23:34:50,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-15 23:34:50,358 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1081 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:50,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 1749 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:34:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2023-12-15 23:34:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 161. [2023-12-15 23:34:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.3125) internal successors, (210), 160 states have internal predecessors, (210), 0 states have call successors, (0), 0 states 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 23:34:50,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 210 transitions. [2023-12-15 23:34:50,366 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 210 transitions. Word has length 55 [2023-12-15 23:34:50,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:50,366 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 210 transitions. [2023-12-15 23:34:50,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 23:34:50,366 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 210 transitions. [2023-12-15 23:34:50,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 23:34:50,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:50,367 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] [2023-12-15 23:34:50,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:34:50,367 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:50,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1767402819, now seen corresponding path program 1 times [2023-12-15 23:34:50,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:50,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012155803] [2023-12-15 23:34:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:50,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:50,445 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 23:34:50,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012155803] [2023-12-15 23:34:50,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012155803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:50,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:50,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:34:50,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747765168] [2023-12-15 23:34:50,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:50,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:34:50,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:50,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:34:50,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:34:50,447 INFO L87 Difference]: Start difference. First operand 161 states and 210 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:50,507 INFO L93 Difference]: Finished difference Result 665 states and 966 transitions. [2023-12-15 23:34:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:34:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-15 23:34:50,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:50,509 INFO L225 Difference]: With dead ends: 665 [2023-12-15 23:34:50,510 INFO L226 Difference]: Without dead ends: 581 [2023-12-15 23:34:50,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:34:50,511 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 486 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:50,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 606 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-12-15 23:34:50,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 243. [2023-12-15 23:34:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.3677685950413223) internal successors, (331), 242 states have internal predecessors, (331), 0 states have call successors, (0), 0 states 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 23:34:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 331 transitions. [2023-12-15 23:34:50,518 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 331 transitions. Word has length 72 [2023-12-15 23:34:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:50,519 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 331 transitions. [2023-12-15 23:34:50,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 331 transitions. [2023-12-15 23:34:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:34:50,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:50,520 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] [2023-12-15 23:34:50,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:34:50,520 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:50,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:50,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1330307651, now seen corresponding path program 1 times [2023-12-15 23:34:50,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:50,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293047034] [2023-12-15 23:34:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:50,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:50,600 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 23:34:50,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:50,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293047034] [2023-12-15 23:34:50,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293047034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:50,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:50,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:34:50,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528384802] [2023-12-15 23:34:50,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:50,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:34:50,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:50,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:34:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:34:50,602 INFO L87 Difference]: Start difference. First operand 243 states and 331 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:50,651 INFO L93 Difference]: Finished difference Result 825 states and 1194 transitions. [2023-12-15 23:34:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:34:50,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:34:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:50,654 INFO L225 Difference]: With dead ends: 825 [2023-12-15 23:34:50,654 INFO L226 Difference]: Without dead ends: 659 [2023-12-15 23:34:50,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:34:50,655 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 283 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:50,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 436 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-12-15 23:34:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 407. [2023-12-15 23:34:50,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.416256157635468) internal successors, (575), 406 states have internal predecessors, (575), 0 states have call successors, (0), 0 states 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 23:34:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 575 transitions. [2023-12-15 23:34:50,665 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 575 transitions. Word has length 74 [2023-12-15 23:34:50,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:50,665 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 575 transitions. [2023-12-15 23:34:50,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,666 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 575 transitions. [2023-12-15 23:34:50,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:34:50,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:50,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:34:50,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:34:50,667 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:50,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:50,667 INFO L85 PathProgramCache]: Analyzing trace with hash 794928439, now seen corresponding path program 1 times [2023-12-15 23:34:50,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:50,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293382080] [2023-12-15 23:34:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:50,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:50,748 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 23:34:50,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:50,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293382080] [2023-12-15 23:34:50,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293382080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:50,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:50,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:34:50,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750658987] [2023-12-15 23:34:50,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:50,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:34:50,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:50,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:34:50,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:34:50,750 INFO L87 Difference]: Start difference. First operand 407 states and 575 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:50,799 INFO L93 Difference]: Finished difference Result 989 states and 1438 transitions. [2023-12-15 23:34:50,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:34:50,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:34:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:50,802 INFO L225 Difference]: With dead ends: 989 [2023-12-15 23:34:50,802 INFO L226 Difference]: Without dead ends: 823 [2023-12-15 23:34:50,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:34:50,803 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 294 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:50,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 433 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2023-12-15 23:34:50,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 653. [2023-12-15 23:34:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 652 states have (on average 1.4417177914110428) internal successors, (940), 652 states have internal predecessors, (940), 0 states have call successors, (0), 0 states 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 23:34:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 940 transitions. [2023-12-15 23:34:50,818 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 940 transitions. Word has length 74 [2023-12-15 23:34:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:50,818 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 940 transitions. [2023-12-15 23:34:50,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 940 transitions. [2023-12-15 23:34:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:34:50,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:50,819 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] [2023-12-15 23:34:50,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:34:50,820 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:50,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:50,820 INFO L85 PathProgramCache]: Analyzing trace with hash 670344324, now seen corresponding path program 1 times [2023-12-15 23:34:50,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:50,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380362432] [2023-12-15 23:34:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:50,888 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 23:34:50,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:50,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380362432] [2023-12-15 23:34:50,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380362432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:50,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:50,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:34:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084940352] [2023-12-15 23:34:50,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:50,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:34:50,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:34:50,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:34:50,890 INFO L87 Difference]: Start difference. First operand 653 states and 940 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:50,912 INFO L93 Difference]: Finished difference Result 1231 states and 1797 transitions. [2023-12-15 23:34:50,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:34:50,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:34:50,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:50,915 INFO L225 Difference]: With dead ends: 1231 [2023-12-15 23:34:50,915 INFO L226 Difference]: Without dead ends: 655 [2023-12-15 23:34:50,916 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 23:34:50,916 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 51 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:50,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 200 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:50,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-12-15 23:34:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 653. [2023-12-15 23:34:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 652 states have (on average 1.4294478527607362) internal successors, (932), 652 states have internal predecessors, (932), 0 states have call successors, (0), 0 states 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 23:34:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 932 transitions. [2023-12-15 23:34:50,929 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 932 transitions. Word has length 74 [2023-12-15 23:34:50,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:50,929 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 932 transitions. [2023-12-15 23:34:50,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 932 transitions. [2023-12-15 23:34:50,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:34:50,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:50,931 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] [2023-12-15 23:34:50,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:34:50,931 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:50,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:50,931 INFO L85 PathProgramCache]: Analyzing trace with hash -98948669, now seen corresponding path program 1 times [2023-12-15 23:34:50,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:50,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319263206] [2023-12-15 23:34:50,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:50,970 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 23:34:50,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319263206] [2023-12-15 23:34:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319263206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:50,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:50,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:34:50,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451895561] [2023-12-15 23:34:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:50,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:34:50,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:34:50,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:34:50,972 INFO L87 Difference]: Start difference. First operand 653 states and 932 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:50,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:50,994 INFO L93 Difference]: Finished difference Result 1715 states and 2478 transitions. [2023-12-15 23:34:50,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:34:50,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:34:50,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:50,998 INFO L225 Difference]: With dead ends: 1715 [2023-12-15 23:34:50,998 INFO L226 Difference]: Without dead ends: 1139 [2023-12-15 23:34:50,999 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 23:34:50,999 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 51 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:50,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 284 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:51,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-15 23:34:51,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1137. [2023-12-15 23:34:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1136 states have (on average 1.409330985915493) internal successors, (1601), 1136 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states 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 23:34:51,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1601 transitions. [2023-12-15 23:34:51,023 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1601 transitions. Word has length 74 [2023-12-15 23:34:51,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:51,023 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1601 transitions. [2023-12-15 23:34:51,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1601 transitions. [2023-12-15 23:34:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 23:34:51,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:51,024 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] [2023-12-15 23:34:51,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:34:51,025 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:51,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2082611331, now seen corresponding path program 1 times [2023-12-15 23:34:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:51,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997454741] [2023-12-15 23:34:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:51,108 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 23:34:51,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:51,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997454741] [2023-12-15 23:34:51,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997454741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:51,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:51,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:34:51,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850013795] [2023-12-15 23:34:51,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:51,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:34:51,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:51,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:34:51,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:34:51,111 INFO L87 Difference]: Start difference. First operand 1137 states and 1601 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:51,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:51,168 INFO L93 Difference]: Finished difference Result 2051 states and 2913 transitions. [2023-12-15 23:34:51,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 23:34:51,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-15 23:34:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:51,175 INFO L225 Difference]: With dead ends: 2051 [2023-12-15 23:34:51,175 INFO L226 Difference]: Without dead ends: 1747 [2023-12-15 23:34:51,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:34:51,177 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 286 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:51,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 465 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2023-12-15 23:34:51,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1439. [2023-12-15 23:34:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1438 states have (on average 1.4137691237830319) internal successors, (2033), 1438 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states 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 23:34:51,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2033 transitions. [2023-12-15 23:34:51,212 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2033 transitions. Word has length 74 [2023-12-15 23:34:51,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:51,212 INFO L495 AbstractCegarLoop]: Abstraction has 1439 states and 2033 transitions. [2023-12-15 23:34:51,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:51,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2033 transitions. [2023-12-15 23:34:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-15 23:34:51,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:51,215 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] [2023-12-15 23:34:51,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:34:51,215 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:51,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash -753330043, now seen corresponding path program 1 times [2023-12-15 23:34:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:51,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37710127] [2023-12-15 23:34:51,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:51,299 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 23:34:51,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:51,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37710127] [2023-12-15 23:34:51,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37710127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:51,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:51,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:34:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477678885] [2023-12-15 23:34:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:51,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:34:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:51,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:34:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:34:51,301 INFO L87 Difference]: Start difference. First operand 1439 states and 2033 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:51,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:51,330 INFO L93 Difference]: Finished difference Result 3677 states and 5209 transitions. [2023-12-15 23:34:51,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:34:51,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-15 23:34:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:51,340 INFO L225 Difference]: With dead ends: 3677 [2023-12-15 23:34:51,340 INFO L226 Difference]: Without dead ends: 2315 [2023-12-15 23:34:51,343 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 23:34:51,343 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 60 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:51,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 266 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:51,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2023-12-15 23:34:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2169. [2023-12-15 23:34:51,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.3952952029520296) internal successors, (3025), 2168 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states 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 23:34:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3025 transitions. [2023-12-15 23:34:51,399 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3025 transitions. Word has length 75 [2023-12-15 23:34:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:51,399 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3025 transitions. [2023-12-15 23:34:51,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:51,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3025 transitions. [2023-12-15 23:34:51,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-15 23:34:51,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:51,402 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] [2023-12-15 23:34:51,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:34:51,402 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:51,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:51,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1764053275, now seen corresponding path program 1 times [2023-12-15 23:34:51,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:51,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692941471] [2023-12-15 23:34:51,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:51,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:51,497 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 23:34:51,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:51,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692941471] [2023-12-15 23:34:51,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692941471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:51,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:51,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:34:51,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093927000] [2023-12-15 23:34:51,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:51,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:34:51,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:51,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:34:51,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:34:51,500 INFO L87 Difference]: Start difference. First operand 2169 states and 3025 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:51,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:51,536 INFO L93 Difference]: Finished difference Result 6137 states and 8529 transitions. [2023-12-15 23:34:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:34:51,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-15 23:34:51,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:51,550 INFO L225 Difference]: With dead ends: 6137 [2023-12-15 23:34:51,551 INFO L226 Difference]: Without dead ends: 4045 [2023-12-15 23:34:51,555 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 23:34:51,555 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 53 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:51,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:51,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2023-12-15 23:34:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 3827. [2023-12-15 23:34:51,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3827 states, 3826 states have (on average 1.3755880815473078) internal successors, (5263), 3826 states have internal predecessors, (5263), 0 states have call successors, (0), 0 states 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 23:34:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3827 states to 3827 states and 5263 transitions. [2023-12-15 23:34:51,642 INFO L78 Accepts]: Start accepts. Automaton has 3827 states and 5263 transitions. Word has length 76 [2023-12-15 23:34:51,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:51,643 INFO L495 AbstractCegarLoop]: Abstraction has 3827 states and 5263 transitions. [2023-12-15 23:34:51,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:34:51,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3827 states and 5263 transitions. [2023-12-15 23:34:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-15 23:34:51,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:51,644 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] [2023-12-15 23:34:51,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 23:34:51,644 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:51,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:51,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1616355032, now seen corresponding path program 1 times [2023-12-15 23:34:51,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:51,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993583536] [2023-12-15 23:34:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:51,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:51,742 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 23:34:51,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:51,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993583536] [2023-12-15 23:34:51,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993583536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:51,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:51,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:34:51,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155278625] [2023-12-15 23:34:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:51,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:34:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:51,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:34:51,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:34:51,744 INFO L87 Difference]: Start difference. First operand 3827 states and 5263 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 23:34:51,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:51,825 INFO L93 Difference]: Finished difference Result 10895 states and 14865 transitions. [2023-12-15 23:34:51,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:34:51,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-15 23:34:51,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:51,850 INFO L225 Difference]: With dead ends: 10895 [2023-12-15 23:34:51,850 INFO L226 Difference]: Without dead ends: 7145 [2023-12-15 23:34:51,855 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 23:34:51,856 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 43 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 263 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 23:34:51,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7145 states. [2023-12-15 23:34:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7145 to 6711. [2023-12-15 23:34:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6711 states, 6710 states have (on average 1.346795827123696) internal successors, (9037), 6710 states have internal predecessors, (9037), 0 states have call successors, (0), 0 states 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 23:34:52,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6711 states to 6711 states and 9037 transitions. [2023-12-15 23:34:52,003 INFO L78 Accepts]: Start accepts. Automaton has 6711 states and 9037 transitions. Word has length 77 [2023-12-15 23:34:52,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:52,003 INFO L495 AbstractCegarLoop]: Abstraction has 6711 states and 9037 transitions. [2023-12-15 23:34:52,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 23:34:52,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6711 states and 9037 transitions. [2023-12-15 23:34:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 23:34:52,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:52,005 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] [2023-12-15 23:34:52,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 23:34:52,005 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-15 23:34:52,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2121296140, now seen corresponding path program 1 times [2023-12-15 23:34:52,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:52,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082794081] [2023-12-15 23:34:52,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:52,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:52,180 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 23:34:52,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:52,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082794081] [2023-12-15 23:34:52,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082794081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:52,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:52,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:34:52,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474703958] [2023-12-15 23:34:52,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:52,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:34:52,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:34:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:34:52,183 INFO L87 Difference]: Start difference. First operand 6711 states and 9037 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 23:34:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:52,293 INFO L93 Difference]: Finished difference Result 10397 states and 13923 transitions. [2023-12-15 23:34:52,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:34:52,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-15 23:34:52,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:52,335 INFO L225 Difference]: With dead ends: 10397 [2023-12-15 23:34:52,335 INFO L226 Difference]: Without dead ends: 10395 [2023-12-15 23:34:52,341 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 23:34:52,342 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 204 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:52,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 630 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:52,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10395 states. [2023-12-15 23:34:52,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10395 to 6903. [2023-12-15 23:34:52,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6903 states, 6902 states have (on average 1.3255578093306288) internal successors, (9149), 6902 states have internal predecessors, (9149), 0 states have call successors, (0), 0 states 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 23:34:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 9149 transitions. [2023-12-15 23:34:52,523 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 9149 transitions. Word has length 78 [2023-12-15 23:34:52,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:52,523 INFO L495 AbstractCegarLoop]: Abstraction has 6903 states and 9149 transitions. [2023-12-15 23:34:52,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 23:34:52,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 9149 transitions. [2023-12-15 23:34:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 23:34:52,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:52,525 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] [2023-12-15 23:34:52,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 23:34:52,525 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 23:34:52,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:52,525 INFO L85 PathProgramCache]: Analyzing trace with hash 305590840, now seen corresponding path program 1 times [2023-12-15 23:34:52,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:52,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095935198] [2023-12-15 23:34:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:52,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:52,571 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 23:34:52,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:52,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095935198] [2023-12-15 23:34:52,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095935198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:52,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:52,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 23:34:52,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144605559] [2023-12-15 23:34:52,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:52,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 23:34:52,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:52,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 23:34:52,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 23:34:52,573 INFO L87 Difference]: Start difference. First operand 6903 states and 9149 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 23:34:52,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:52,632 INFO L93 Difference]: Finished difference Result 13995 states and 18571 transitions. [2023-12-15 23:34:52,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 23:34:52,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2023-12-15 23:34:52,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:52,646 INFO L225 Difference]: With dead ends: 13995 [2023-12-15 23:34:52,647 INFO L226 Difference]: Without dead ends: 7169 [2023-12-15 23:34:52,656 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 23:34:52,658 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 67 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:52,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 216 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 23:34:52,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2023-12-15 23:34:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7167. [2023-12-15 23:34:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7167 states, 7166 states have (on average 1.3051911805749372) internal successors, (9353), 7166 states have internal predecessors, (9353), 0 states have call successors, (0), 0 states 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 23:34:52,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7167 states to 7167 states and 9353 transitions. [2023-12-15 23:34:52,821 INFO L78 Accepts]: Start accepts. Automaton has 7167 states and 9353 transitions. Word has length 78 [2023-12-15 23:34:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:52,822 INFO L495 AbstractCegarLoop]: Abstraction has 7167 states and 9353 transitions. [2023-12-15 23:34:52,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 23:34:52,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7167 states and 9353 transitions. [2023-12-15 23:34:52,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 23:34:52,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:52,825 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] [2023-12-15 23:34:52,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 23:34:52,825 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 23:34:52,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:52,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1123966569, now seen corresponding path program 1 times [2023-12-15 23:34:52,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:52,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221420403] [2023-12-15 23:34:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:52,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 23:34:53,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:53,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221420403] [2023-12-15 23:34:53,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221420403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:34:53,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:34:53,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:34:53,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163734533] [2023-12-15 23:34:53,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:34:53,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:34:53,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:53,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:34:53,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:34:53,027 INFO L87 Difference]: Start difference. First operand 7167 states and 9353 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 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 23:34:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:34:53,339 INFO L93 Difference]: Finished difference Result 21609 states and 28157 transitions. [2023-12-15 23:34:53,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 23:34:53,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 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 100 [2023-12-15 23:34:53,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:34:53,366 INFO L225 Difference]: With dead ends: 21609 [2023-12-15 23:34:53,366 INFO L226 Difference]: Without dead ends: 14507 [2023-12-15 23:34:53,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:34:53,379 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 328 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:34:53,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 380 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:34:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14507 states. [2023-12-15 23:34:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14507 to 7167. [2023-12-15 23:34:53,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7167 states, 7166 states have (on average 1.304912084845102) internal successors, (9351), 7166 states have internal predecessors, (9351), 0 states have call successors, (0), 0 states 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 23:34:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7167 states to 7167 states and 9351 transitions. [2023-12-15 23:34:53,554 INFO L78 Accepts]: Start accepts. Automaton has 7167 states and 9351 transitions. Word has length 100 [2023-12-15 23:34:53,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:34:53,555 INFO L495 AbstractCegarLoop]: Abstraction has 7167 states and 9351 transitions. [2023-12-15 23:34:53,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 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 23:34:53,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7167 states and 9351 transitions. [2023-12-15 23:34:53,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 23:34:53,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:34:53,557 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] [2023-12-15 23:34:53,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 23:34:53,558 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 23:34:53,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:34:53,558 INFO L85 PathProgramCache]: Analyzing trace with hash 446079846, now seen corresponding path program 1 times [2023-12-15 23:34:53,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:34:53,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699909331] [2023-12-15 23:34:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:34:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:34:54,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:34:54,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699909331] [2023-12-15 23:34:54,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699909331] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:34:54,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897468235] [2023-12-15 23:34:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:34:54,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:34:54,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:34:54,100 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 23:34:54,110 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 23:34:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:34:54,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-15 23:34:54,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:34:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:34:54,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:34:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:34:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897468235] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:34:56,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 23:34:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2023-12-15 23:34:56,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462575399] [2023-12-15 23:34:56,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 23:34:56,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-15 23:34:56,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:34:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-15 23:34:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2023-12-15 23:34:56,705 INFO L87 Difference]: Start difference. First operand 7167 states and 9351 transitions. Second operand has 30 states, 30 states have (on average 9.4) internal successors, (282), 29 states have internal predecessors, (282), 0 states have call successors, (0), 0 states 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 23:35:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:35:32,885 INFO L93 Difference]: Finished difference Result 129968 states and 164215 transitions. [2023-12-15 23:35:32,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 492 states. [2023-12-15 23:35:32,886 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.4) internal successors, (282), 29 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-15 23:35:32,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:35:33,121 INFO L225 Difference]: With dead ends: 129968 [2023-12-15 23:35:33,122 INFO L226 Difference]: Without dead ends: 122878 [2023-12-15 23:35:33,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 518 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117310 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=24901, Invalid=244979, Unknown=0, NotChecked=0, Total=269880 [2023-12-15 23:35:33,198 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 5210 mSDsluCounter, 4076 mSDsCounter, 0 mSdLazyCounter, 4801 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5210 SdHoareTripleChecker+Valid, 4335 SdHoareTripleChecker+Invalid, 4867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-15 23:35:33,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5210 Valid, 4335 Invalid, 4867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 4801 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-15 23:35:33,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122878 states. [2023-12-15 23:35:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122878 to 30469. [2023-12-15 23:35:34,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30469 states, 30468 states have (on average 1.3035643954312721) internal successors, (39717), 30468 states have internal predecessors, (39717), 0 states have call successors, (0), 0 states 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 23:35:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30469 states to 30469 states and 39717 transitions. [2023-12-15 23:35:34,451 INFO L78 Accepts]: Start accepts. Automaton has 30469 states and 39717 transitions. Word has length 102 [2023-12-15 23:35:34,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:35:34,451 INFO L495 AbstractCegarLoop]: Abstraction has 30469 states and 39717 transitions. [2023-12-15 23:35:34,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.4) internal successors, (282), 29 states have internal predecessors, (282), 0 states have call successors, (0), 0 states 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 23:35:34,452 INFO L276 IsEmpty]: Start isEmpty. Operand 30469 states and 39717 transitions. [2023-12-15 23:35:34,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 23:35:34,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:35:34,457 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:35:34,469 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 23:35:34,665 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,SelfDestructingSolverStorable23 [2023-12-15 23:35:34,665 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 23:35:34,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:35:34,666 INFO L85 PathProgramCache]: Analyzing trace with hash -498912012, now seen corresponding path program 1 times [2023-12-15 23:35:34,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:35:34,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221702752] [2023-12-15 23:35:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:35:34,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:35:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:35:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:35:35,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:35:35,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221702752] [2023-12-15 23:35:35,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221702752] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 23:35:35,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720818742] [2023-12-15 23:35:35,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:35:35,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:35:35,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:35:35,304 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 23:35:35,306 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 23:35:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:35:35,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-15 23:35:35,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-15 23:35:35,549 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 23:35:35,550 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-15 23:35:35,560 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 23:35:35,560 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 23:35:35,750 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,SelfDestructingSolverStorable24 [2023-12-15 23:35:35,751 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-15 23:35:35,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-15 23:35:35,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-15 23:35:35,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-15 23:35:35,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-15 23:35:35,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-15 23:35:35,753 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-15 23:35:35,756 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] [2023-12-15 23:35:35,758 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:35:35,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:35:35 BoogieIcfgContainer [2023-12-15 23:35:35,764 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:35:35,765 INFO L158 Benchmark]: Toolchain (without parser) took 56222.85ms. Allocated memory was 321.9MB in the beginning and 865.1MB in the end (delta: 543.2MB). Free memory was 270.0MB in the beginning and 375.7MB in the end (delta: -105.7MB). Peak memory consumption was 438.4MB. Max. memory is 8.0GB. [2023-12-15 23:35:35,765 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 205.5MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:35:35,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.17ms. Allocated memory is still 321.9MB. Free memory was 270.0MB in the beginning and 238.1MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-15 23:35:35,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.86ms. Allocated memory is still 321.9MB. Free memory was 238.1MB in the beginning and 233.3MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 23:35:35,770 INFO L158 Benchmark]: Boogie Preprocessor took 61.46ms. Allocated memory is still 321.9MB. Free memory was 233.3MB in the beginning and 228.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 23:35:35,770 INFO L158 Benchmark]: RCFGBuilder took 1024.54ms. Allocated memory is still 321.9MB. Free memory was 228.1MB in the beginning and 238.7MB in the end (delta: -10.6MB). Peak memory consumption was 19.6MB. Max. memory is 8.0GB. [2023-12-15 23:35:35,772 INFO L158 Benchmark]: TraceAbstraction took 54540.31ms. Allocated memory was 321.9MB in the beginning and 865.1MB in the end (delta: 543.2MB). Free memory was 238.2MB in the beginning and 375.7MB in the end (delta: -137.5MB). Peak memory consumption was 406.1MB. Max. memory is 8.0GB. [2023-12-15 23:35:35,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 205.5MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 516.17ms. Allocated memory is still 321.9MB. Free memory was 270.0MB in the beginning and 238.1MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.86ms. Allocated memory is still 321.9MB. Free memory was 238.1MB in the beginning and 233.3MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.46ms. Allocated memory is still 321.9MB. Free memory was 233.3MB in the beginning and 228.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1024.54ms. Allocated memory is still 321.9MB. Free memory was 228.1MB in the beginning and 238.7MB in the end (delta: -10.6MB). Peak memory consumption was 19.6MB. Max. memory is 8.0GB. * TraceAbstraction took 54540.31ms. Allocated memory was 321.9MB in the beginning and 865.1MB in the end (delta: 543.2MB). Free memory was 238.2MB in the beginning and 375.7MB in the end (delta: -137.5MB). Peak memory consumption was 406.1MB. 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: 400]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 400). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 648]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 648). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 736]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 736). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 783]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 783). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 898]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 898). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 945]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 945). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 1020]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1020). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 205 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 54.5s, OverallIterations: 25, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16462 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16462 mSDsluCounter, 16943 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13112 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9124 IncrementalHoareTripleChecker+Invalid, 9245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 3831 mSDtfsCounter, 9124 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 964 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 742 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117834 ImplicationChecksByTransitivity, 35.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30469occurred in iteration=24, InterpolantAutomatonStates: 686, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 24 MinimizatonAttempts, 107560 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 1681 NumberOfCodeBlocks, 1681 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1757 ConstructedInterpolants, 0 QuantifiedInterpolants, 14281 SizeOfPredicates, 6 NumberOfNonLiveVariables, 477 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 26 InterpolantComputations, 23 PerfectInterpolantSequences, 39/56 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