/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:53:00,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:53:00,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:53:00,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:53:00,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:53:00,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:53:00,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:53:00,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:53:00,662 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:53:00,662 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:53:00,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:53:00,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:53:00,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:53:00,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:53:00,663 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:53:00,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:53:00,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:53:00,664 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:53:00,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:53:00,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:53:00,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:53:00,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:53:00,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:53:00,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:53:00,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:53:00,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:53:00,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:53:00,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:53:00,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:53:00,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:53:00,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:53:00,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:53:00,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:53:00,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:53:00,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:53:00,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:53:00,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:53:00,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:53:00,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:53:00,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:53:00,668 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:53:00,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:53:00,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:53:00,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:53:00,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:53:00,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:53:00,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:53:00,813 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:53:00,813 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:53:00,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:53:01,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:53:02,106 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:53:02,107 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:53:02,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6acf9f22/10f75f8dcb1c4a18a2b13780a8ee8617/FLAGb351201d9 [2023-12-20 02:53:02,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6acf9f22/10f75f8dcb1c4a18a2b13780a8ee8617 [2023-12-20 02:53:02,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:53:02,147 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:53:02,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:53:02,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:53:02,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:53:02,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:53:02" (1/1) ... [2023-12-20 02:53:02,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a4085ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:02, skipping insertion in model container [2023-12-20 02:53:02,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:53:02" (1/1) ... [2023-12-20 02:53:02,252 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:53:02,595 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[28933,28946] [2023-12-20 02:53:02,668 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[50969,50982] [2023-12-20 02:53:02,684 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58695,58708] [2023-12-20 02:53:02,731 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83802,83815] [2023-12-20 02:53:02,767 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98975,98988] [2023-12-20 02:53:02,811 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115686,115699] [2023-12-20 02:53:02,848 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132053,132066] [2023-12-20 02:53:02,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:53:03,000 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:53:03,119 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[28933,28946] [2023-12-20 02:53:03,170 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[50969,50982] [2023-12-20 02:53:03,179 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58695,58708] [2023-12-20 02:53:03,206 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83802,83815] [2023-12-20 02:53:03,223 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98975,98988] [2023-12-20 02:53:03,241 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115686,115699] [2023-12-20 02:53:03,285 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132053,132066] [2023-12-20 02:53:03,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:53:03,424 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:53:03,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03 WrapperNode [2023-12-20 02:53:03,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:53:03,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:53:03,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:53:03,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:53:03,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,612 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9841 [2023-12-20 02:53:03,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:53:03,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:53:03,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:53:03,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:53:03,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,692 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]. [2023-12-20 02:53:03,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:53:03,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:53:03,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:53:03,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:53:03,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (1/1) ... [2023-12-20 02:53:03,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:53:03,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:53:03,889 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) [2023-12-20 02:53:03,906 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 [2023-12-20 02:53:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:53:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:53:03,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:53:03,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:53:04,186 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:53:04,188 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:53:07,008 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:53:07,058 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:53:07,058 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:53:07,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:53:07 BoogieIcfgContainer [2023-12-20 02:53:07,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:53:07,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:53:07,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:53:07,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:53:07,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:53:02" (1/3) ... [2023-12-20 02:53:07,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414ea30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:53:07, skipping insertion in model container [2023-12-20 02:53:07,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:53:03" (2/3) ... [2023-12-20 02:53:07,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414ea30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:53:07, skipping insertion in model container [2023-12-20 02:53:07,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:53:07" (3/3) ... [2023-12-20 02:53:07,075 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:53:07,087 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:53:07,087 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-20 02:53:07,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:53:07,151 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;@195c9648, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:53:07,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-20 02:53:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 2027 states, 2019 states have (on average 1.799405646359584) internal successors, (3633), 2026 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-20 02:53:07,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:07,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:07,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:07,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:07,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1031762117, now seen corresponding path program 1 times [2023-12-20 02:53:07,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:07,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387363673] [2023-12-20 02:53:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:07,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:07,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:07,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387363673] [2023-12-20 02:53:07,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387363673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:07,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:07,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:53:07,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772619615] [2023-12-20 02:53:07,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:07,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:53:07,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:07,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:53:07,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:53:07,631 INFO L87 Difference]: Start difference. First operand has 2027 states, 2019 states have (on average 1.799405646359584) internal successors, (3633), 2026 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:09,033 INFO L93 Difference]: Finished difference Result 3323 states and 5848 transitions. [2023-12-20 02:53:09,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:53:09,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-20 02:53:09,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:09,049 INFO L225 Difference]: With dead ends: 3323 [2023-12-20 02:53:09,050 INFO L226 Difference]: Without dead ends: 2130 [2023-12-20 02:53:09,067 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 [2023-12-20 02:53:09,069 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 10321 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10321 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:09,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10321 Valid, 2189 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:53:09,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2023-12-20 02:53:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2117. [2023-12-20 02:53:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2110 states have (on average 1.3483412322274881) internal successors, (2845), 2116 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:09,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2845 transitions. [2023-12-20 02:53:09,155 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2845 transitions. Word has length 63 [2023-12-20 02:53:09,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:09,156 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 2845 transitions. [2023-12-20 02:53:09,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2845 transitions. [2023-12-20 02:53:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 02:53:09,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:09,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:09,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:53:09,162 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:09,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash 505276640, now seen corresponding path program 1 times [2023-12-20 02:53:09,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:09,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383579962] [2023-12-20 02:53:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:09,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:09,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383579962] [2023-12-20 02:53:09,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383579962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:09,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:09,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:53:09,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987108530] [2023-12-20 02:53:09,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:09,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:53:09,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:09,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:53:09,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:53:09,317 INFO L87 Difference]: Start difference. First operand 2117 states and 2845 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:10,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:10,484 INFO L93 Difference]: Finished difference Result 4336 states and 5920 transitions. [2023-12-20 02:53:10,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:53:10,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-20 02:53:10,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:10,504 INFO L225 Difference]: With dead ends: 4336 [2023-12-20 02:53:10,504 INFO L226 Difference]: Without dead ends: 2922 [2023-12-20 02:53:10,506 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 [2023-12-20 02:53:10,507 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 8048 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8048 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:10,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8048 Valid, 1458 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:53:10,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2023-12-20 02:53:10,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2916. [2023-12-20 02:53:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2909 states have (on average 1.3547610862839463) internal successors, (3941), 2915 states have internal predecessors, (3941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:10,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 3941 transitions. [2023-12-20 02:53:10,546 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 3941 transitions. Word has length 64 [2023-12-20 02:53:10,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:10,547 INFO L495 AbstractCegarLoop]: Abstraction has 2916 states and 3941 transitions. [2023-12-20 02:53:10,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:10,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 3941 transitions. [2023-12-20 02:53:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 02:53:10,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:10,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:10,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:53:10,551 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)] === [2023-12-20 02:53:10,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:10,552 INFO L85 PathProgramCache]: Analyzing trace with hash 285379470, now seen corresponding path program 1 times [2023-12-20 02:53:10,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:10,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815558589] [2023-12-20 02:53:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:10,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:10,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:10,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815558589] [2023-12-20 02:53:10,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815558589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:10,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:10,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:53:10,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596791819] [2023-12-20 02:53:10,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:10,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:53:10,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:10,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:53:10,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:53:10,649 INFO L87 Difference]: Start difference. First operand 2916 states and 3941 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:11,811 INFO L93 Difference]: Finished difference Result 6143 states and 8390 transitions. [2023-12-20 02:53:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:53:11,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-20 02:53:11,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:11,826 INFO L225 Difference]: With dead ends: 6143 [2023-12-20 02:53:11,831 INFO L226 Difference]: Without dead ends: 4032 [2023-12-20 02:53:11,836 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 [2023-12-20 02:53:11,838 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 7612 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7612 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:11,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7612 Valid, 1432 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:53:11,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2023-12-20 02:53:11,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4018. [2023-12-20 02:53:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 4011 states have (on average 1.350536025928696) internal successors, (5417), 4017 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5417 transitions. [2023-12-20 02:53:11,916 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5417 transitions. Word has length 64 [2023-12-20 02:53:11,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:11,917 INFO L495 AbstractCegarLoop]: Abstraction has 4018 states and 5417 transitions. [2023-12-20 02:53:11,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5417 transitions. [2023-12-20 02:53:11,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:53:11,924 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:11,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:11,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:53:11,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:11,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:11,925 INFO L85 PathProgramCache]: Analyzing trace with hash -874930976, now seen corresponding path program 1 times [2023-12-20 02:53:11,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:11,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792246650] [2023-12-20 02:53:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:11,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:12,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:12,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792246650] [2023-12-20 02:53:12,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792246650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:12,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:12,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:53:12,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329335242] [2023-12-20 02:53:12,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:12,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:53:12,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:12,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:53:12,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:53:12,211 INFO L87 Difference]: Start difference. First operand 4018 states and 5417 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:14,461 INFO L93 Difference]: Finished difference Result 4766 states and 6472 transitions. [2023-12-20 02:53:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:53:14,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-20 02:53:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:14,476 INFO L225 Difference]: With dead ends: 4766 [2023-12-20 02:53:14,477 INFO L226 Difference]: Without dead ends: 4761 [2023-12-20 02:53:14,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:53:14,483 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 6791 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 5078 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6791 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 5102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:14,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6791 Valid, 5264 Invalid, 5102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 5078 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-20 02:53:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2023-12-20 02:53:14,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4018. [2023-12-20 02:53:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 4011 states have (on average 1.350286711543256) internal successors, (5416), 4017 states have internal predecessors, (5416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5416 transitions. [2023-12-20 02:53:14,596 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5416 transitions. Word has length 65 [2023-12-20 02:53:14,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:14,596 INFO L495 AbstractCegarLoop]: Abstraction has 4018 states and 5416 transitions. [2023-12-20 02:53:14,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:14,596 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5416 transitions. [2023-12-20 02:53:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:53:14,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:14,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:14,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:53:14,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:14,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash -428617911, now seen corresponding path program 1 times [2023-12-20 02:53:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:14,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566657696] [2023-12-20 02:53:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:14,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:14,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566657696] [2023-12-20 02:53:14,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566657696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:14,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:14,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:53:14,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892719098] [2023-12-20 02:53:14,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:14,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:53:14,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:14,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:53:14,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:53:14,863 INFO L87 Difference]: Start difference. First operand 4018 states and 5416 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:18,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:18,489 INFO L93 Difference]: Finished difference Result 8089 states and 11475 transitions. [2023-12-20 02:53:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:53:18,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-20 02:53:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:18,507 INFO L225 Difference]: With dead ends: 8089 [2023-12-20 02:53:18,507 INFO L226 Difference]: Without dead ends: 7272 [2023-12-20 02:53:18,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2023-12-20 02:53:18,511 INFO L413 NwaCegarLoop]: 1173 mSDtfsCounter, 7813 mSDsluCounter, 5998 mSDsCounter, 0 mSdLazyCounter, 7214 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7813 SdHoareTripleChecker+Valid, 7171 SdHoareTripleChecker+Invalid, 7221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:18,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7813 Valid, 7171 Invalid, 7221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7214 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-20 02:53:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2023-12-20 02:53:18,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 4025. [2023-12-20 02:53:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 4018 states have (on average 1.349676455948233) internal successors, (5423), 4024 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 5423 transitions. [2023-12-20 02:53:18,615 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 5423 transitions. Word has length 65 [2023-12-20 02:53:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:18,616 INFO L495 AbstractCegarLoop]: Abstraction has 4025 states and 5423 transitions. [2023-12-20 02:53:18,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:18,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 5423 transitions. [2023-12-20 02:53:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 02:53:18,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:18,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:18,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:53:18,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:18,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2016295323, now seen corresponding path program 1 times [2023-12-20 02:53:18,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:18,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936251834] [2023-12-20 02:53:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:18,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:19,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:19,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936251834] [2023-12-20 02:53:19,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936251834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:19,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:19,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:53:19,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497228750] [2023-12-20 02:53:19,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:19,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:53:19,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:19,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:53:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:53:19,212 INFO L87 Difference]: Start difference. First operand 4025 states and 5423 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:21,946 INFO L93 Difference]: Finished difference Result 15765 states and 23127 transitions. [2023-12-20 02:53:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-20 02:53:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-20 02:53:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:21,980 INFO L225 Difference]: With dead ends: 15765 [2023-12-20 02:53:21,980 INFO L226 Difference]: Without dead ends: 15757 [2023-12-20 02:53:21,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:53:21,984 INFO L413 NwaCegarLoop]: 2318 mSDtfsCounter, 15535 mSDsluCounter, 16965 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15535 SdHoareTripleChecker+Valid, 19283 SdHoareTripleChecker+Invalid, 3731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:21,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15535 Valid, 19283 Invalid, 3731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3706 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-20 02:53:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15757 states. [2023-12-20 02:53:22,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15757 to 4017. [2023-12-20 02:53:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4017 states, 4011 states have (on average 1.350037397157816) internal successors, (5415), 4016 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4017 states to 4017 states and 5415 transitions. [2023-12-20 02:53:22,110 INFO L78 Accepts]: Start accepts. Automaton has 4017 states and 5415 transitions. Word has length 66 [2023-12-20 02:53:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:22,110 INFO L495 AbstractCegarLoop]: Abstraction has 4017 states and 5415 transitions. [2023-12-20 02:53:22,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4017 states and 5415 transitions. [2023-12-20 02:53:22,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 02:53:22,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:22,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:22,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:53:22,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:22,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1740752215, now seen corresponding path program 1 times [2023-12-20 02:53:22,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:22,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434019300] [2023-12-20 02:53:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:22,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:22,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:22,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434019300] [2023-12-20 02:53:22,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434019300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:22,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:22,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:53:22,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275162491] [2023-12-20 02:53:22,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:22,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:53:22,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:22,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:53:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:53:22,209 INFO L87 Difference]: Start difference. First operand 4017 states and 5415 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:23,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:23,088 INFO L93 Difference]: Finished difference Result 7917 states and 10741 transitions. [2023-12-20 02:53:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:53:23,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-20 02:53:23,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:23,096 INFO L225 Difference]: With dead ends: 7917 [2023-12-20 02:53:23,096 INFO L226 Difference]: Without dead ends: 5301 [2023-12-20 02:53:23,098 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 [2023-12-20 02:53:23,099 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 6534 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6534 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:23,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6534 Valid, 1239 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:53:23,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2023-12-20 02:53:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5291. [2023-12-20 02:53:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5285 states have (on average 1.3538315988647114) internal successors, (7155), 5290 states have internal predecessors, (7155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 7155 transitions. [2023-12-20 02:53:23,147 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 7155 transitions. Word has length 66 [2023-12-20 02:53:23,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:23,148 INFO L495 AbstractCegarLoop]: Abstraction has 5291 states and 7155 transitions. [2023-12-20 02:53:23,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 7155 transitions. [2023-12-20 02:53:23,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 02:53:23,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:23,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:23,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:53:23,155 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:23,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:23,156 INFO L85 PathProgramCache]: Analyzing trace with hash -167816723, now seen corresponding path program 1 times [2023-12-20 02:53:23,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:23,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390319028] [2023-12-20 02:53:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:23,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:23,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:23,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390319028] [2023-12-20 02:53:23,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390319028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:23,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:23,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:53:23,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846955381] [2023-12-20 02:53:23,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:23,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:53:23,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:23,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:53:23,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:53:23,598 INFO L87 Difference]: Start difference. First operand 5291 states and 7155 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:25,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:25,892 INFO L93 Difference]: Finished difference Result 21513 states and 31612 transitions. [2023-12-20 02:53:25,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-20 02:53:25,892 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-20 02:53:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:25,917 INFO L225 Difference]: With dead ends: 21513 [2023-12-20 02:53:25,917 INFO L226 Difference]: Without dead ends: 20191 [2023-12-20 02:53:25,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=328, Invalid=1232, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:53:25,922 INFO L413 NwaCegarLoop]: 1964 mSDtfsCounter, 17637 mSDsluCounter, 12967 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17637 SdHoareTripleChecker+Valid, 14931 SdHoareTripleChecker+Invalid, 2735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:25,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17637 Valid, 14931 Invalid, 2735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:53:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20191 states. [2023-12-20 02:53:26,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20191 to 5203. [2023-12-20 02:53:26,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5198 states have (on average 1.3512889572912659) internal successors, (7024), 5202 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 7024 transitions. [2023-12-20 02:53:26,049 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 7024 transitions. Word has length 66 [2023-12-20 02:53:26,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:26,049 INFO L495 AbstractCegarLoop]: Abstraction has 5203 states and 7024 transitions. [2023-12-20 02:53:26,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:26,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 7024 transitions. [2023-12-20 02:53:26,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-20 02:53:26,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:26,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:26,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:53:26,054 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:26,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:26,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1849785436, now seen corresponding path program 1 times [2023-12-20 02:53:26,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:26,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202639822] [2023-12-20 02:53:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:26,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:26,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:26,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202639822] [2023-12-20 02:53:26,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202639822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:26,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:26,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:53:26,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291740158] [2023-12-20 02:53:26,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:26,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:53:26,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:26,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:53:26,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:53:26,252 INFO L87 Difference]: Start difference. First operand 5203 states and 7024 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:29,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:29,104 INFO L93 Difference]: Finished difference Result 11756 states and 16835 transitions. [2023-12-20 02:53:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:53:29,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-20 02:53:29,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:29,118 INFO L225 Difference]: With dead ends: 11756 [2023-12-20 02:53:29,118 INFO L226 Difference]: Without dead ends: 10471 [2023-12-20 02:53:29,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:53:29,122 INFO L413 NwaCegarLoop]: 1148 mSDtfsCounter, 7411 mSDsluCounter, 4969 mSDsCounter, 0 mSdLazyCounter, 5528 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7411 SdHoareTripleChecker+Valid, 6117 SdHoareTripleChecker+Invalid, 5557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 5528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:29,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7411 Valid, 6117 Invalid, 5557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 5528 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-20 02:53:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2023-12-20 02:53:29,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5156. [2023-12-20 02:53:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5151 states have (on average 1.3504173946806446) internal successors, (6956), 5155 states have internal predecessors, (6956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:29,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 6956 transitions. [2023-12-20 02:53:29,207 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 6956 transitions. Word has length 67 [2023-12-20 02:53:29,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:29,207 INFO L495 AbstractCegarLoop]: Abstraction has 5156 states and 6956 transitions. [2023-12-20 02:53:29,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:29,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 6956 transitions. [2023-12-20 02:53:29,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:53:29,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:29,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:29,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:53:29,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:29,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:29,213 INFO L85 PathProgramCache]: Analyzing trace with hash -2035786332, now seen corresponding path program 1 times [2023-12-20 02:53:29,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:29,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295421613] [2023-12-20 02:53:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:29,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:29,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:29,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295421613] [2023-12-20 02:53:29,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295421613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:29,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:29,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:53:29,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153808867] [2023-12-20 02:53:29,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:29,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:53:29,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:29,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:53:29,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:53:29,376 INFO L87 Difference]: Start difference. First operand 5156 states and 6956 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:31,292 INFO L93 Difference]: Finished difference Result 7760 states and 10640 transitions. [2023-12-20 02:53:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:53:31,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-20 02:53:31,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:31,301 INFO L225 Difference]: With dead ends: 7760 [2023-12-20 02:53:31,301 INFO L226 Difference]: Without dead ends: 7752 [2023-12-20 02:53:31,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:53:31,303 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 5574 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 4617 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5574 SdHoareTripleChecker+Valid, 4757 SdHoareTripleChecker+Invalid, 4648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 4617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:31,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5574 Valid, 4757 Invalid, 4648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 4617 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:53:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7752 states. [2023-12-20 02:53:31,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7752 to 5156. [2023-12-20 02:53:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5151 states have (on average 1.3502232576198796) internal successors, (6955), 5155 states have internal predecessors, (6955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 6955 transitions. [2023-12-20 02:53:31,371 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 6955 transitions. Word has length 68 [2023-12-20 02:53:31,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:31,371 INFO L495 AbstractCegarLoop]: Abstraction has 5156 states and 6955 transitions. [2023-12-20 02:53:31,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:31,371 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 6955 transitions. [2023-12-20 02:53:31,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:53:31,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:31,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:31,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:53:31,377 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:31,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1784891832, now seen corresponding path program 1 times [2023-12-20 02:53:31,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:31,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487998818] [2023-12-20 02:53:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:31,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:31,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:31,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487998818] [2023-12-20 02:53:31,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487998818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:31,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:31,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:53:31,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183631792] [2023-12-20 02:53:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:31,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:53:31,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:31,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:53:31,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:53:31,766 INFO L87 Difference]: Start difference. First operand 5156 states and 6955 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:34,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:34,232 INFO L93 Difference]: Finished difference Result 18358 states and 26650 transitions. [2023-12-20 02:53:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-20 02:53:34,233 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-20 02:53:34,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:34,248 INFO L225 Difference]: With dead ends: 18358 [2023-12-20 02:53:34,249 INFO L226 Difference]: Without dead ends: 17070 [2023-12-20 02:53:34,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=324, Invalid=866, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:53:34,251 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 10769 mSDsluCounter, 11858 mSDsCounter, 0 mSdLazyCounter, 2639 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10769 SdHoareTripleChecker+Valid, 13704 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:34,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10769 Valid, 13704 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2639 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:53:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17070 states. [2023-12-20 02:53:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17070 to 5166. [2023-12-20 02:53:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5161 states have (on average 1.350125944584383) internal successors, (6968), 5165 states have internal predecessors, (6968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:34,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 6968 transitions. [2023-12-20 02:53:34,342 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 6968 transitions. Word has length 68 [2023-12-20 02:53:34,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:34,342 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 6968 transitions. [2023-12-20 02:53:34,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:34,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 6968 transitions. [2023-12-20 02:53:34,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:53:34,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:34,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:34,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:53:34,348 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:34,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:34,349 INFO L85 PathProgramCache]: Analyzing trace with hash -541441223, now seen corresponding path program 1 times [2023-12-20 02:53:34,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:34,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605878864] [2023-12-20 02:53:34,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:34,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:34,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:34,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605878864] [2023-12-20 02:53:34,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605878864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:34,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:34,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:53:34,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568409213] [2023-12-20 02:53:34,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:34,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:53:34,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:34,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:53:34,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:53:34,487 INFO L87 Difference]: Start difference. First operand 5166 states and 6968 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:36,201 INFO L93 Difference]: Finished difference Result 9520 states and 13495 transitions. [2023-12-20 02:53:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:53:36,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-20 02:53:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:36,209 INFO L225 Difference]: With dead ends: 9520 [2023-12-20 02:53:36,210 INFO L226 Difference]: Without dead ends: 8278 [2023-12-20 02:53:36,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:53:36,213 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 6973 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 3820 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6973 SdHoareTripleChecker+Valid, 4113 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:36,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6973 Valid, 4113 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3820 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 02:53:36,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8278 states. [2023-12-20 02:53:36,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8278 to 5166. [2023-12-20 02:53:36,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5161 states have (on average 1.3497384227862816) internal successors, (6966), 5165 states have internal predecessors, (6966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:36,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 6966 transitions. [2023-12-20 02:53:36,318 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 6966 transitions. Word has length 69 [2023-12-20 02:53:36,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:36,318 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 6966 transitions. [2023-12-20 02:53:36,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:36,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 6966 transitions. [2023-12-20 02:53:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:53:36,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:36,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:36,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:53:36,324 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:36,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash -463393113, now seen corresponding path program 1 times [2023-12-20 02:53:36,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:36,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350842017] [2023-12-20 02:53:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:36,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:36,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:36,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:36,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350842017] [2023-12-20 02:53:36,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350842017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:36,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:36,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 02:53:36,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641008701] [2023-12-20 02:53:36,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:36,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:53:36,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:36,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:53:36,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:53:36,843 INFO L87 Difference]: Start difference. First operand 5166 states and 6966 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:39,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:39,857 INFO L93 Difference]: Finished difference Result 20614 states and 30252 transitions. [2023-12-20 02:53:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-20 02:53:39,857 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-20 02:53:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:39,880 INFO L225 Difference]: With dead ends: 20614 [2023-12-20 02:53:39,880 INFO L226 Difference]: Without dead ends: 20603 [2023-12-20 02:53:39,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=345, Invalid=1215, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:53:39,887 INFO L413 NwaCegarLoop]: 1974 mSDtfsCounter, 17877 mSDsluCounter, 12194 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17877 SdHoareTripleChecker+Valid, 14168 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:39,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17877 Valid, 14168 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:53:39,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2023-12-20 02:53:40,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 5160. [2023-12-20 02:53:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5160 states, 5155 states have (on average 1.3499515033947624) internal successors, (6959), 5159 states have internal predecessors, (6959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5160 states to 5160 states and 6959 transitions. [2023-12-20 02:53:40,020 INFO L78 Accepts]: Start accepts. Automaton has 5160 states and 6959 transitions. Word has length 69 [2023-12-20 02:53:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:40,021 INFO L495 AbstractCegarLoop]: Abstraction has 5160 states and 6959 transitions. [2023-12-20 02:53:40,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5160 states and 6959 transitions. [2023-12-20 02:53:40,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:53:40,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:40,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:40,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:53:40,027 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:40,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:40,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1882503663, now seen corresponding path program 1 times [2023-12-20 02:53:40,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:40,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893181408] [2023-12-20 02:53:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:40,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:40,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893181408] [2023-12-20 02:53:40,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893181408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:40,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:40,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:53:40,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783024400] [2023-12-20 02:53:40,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:40,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:53:40,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:40,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:53:40,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:53:40,086 INFO L87 Difference]: Start difference. First operand 5160 states and 6959 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:40,228 INFO L93 Difference]: Finished difference Result 10183 states and 13912 transitions. [2023-12-20 02:53:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:53:40,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-20 02:53:40,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:40,236 INFO L225 Difference]: With dead ends: 10183 [2023-12-20 02:53:40,236 INFO L226 Difference]: Without dead ends: 6211 [2023-12-20 02:53:40,241 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 [2023-12-20 02:53:40,241 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 1556 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:40,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 2117 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:53:40,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6211 states. [2023-12-20 02:53:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6211 to 6201. [2023-12-20 02:53:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6201 states, 6197 states have (on average 1.3517831208649347) internal successors, (8377), 6200 states have internal predecessors, (8377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 8377 transitions. [2023-12-20 02:53:40,307 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 8377 transitions. Word has length 69 [2023-12-20 02:53:40,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:40,307 INFO L495 AbstractCegarLoop]: Abstraction has 6201 states and 8377 transitions. [2023-12-20 02:53:40,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 8377 transitions. [2023-12-20 02:53:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:53:40,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:40,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:40,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:53:40,313 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:40,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:40,314 INFO L85 PathProgramCache]: Analyzing trace with hash 594946586, now seen corresponding path program 1 times [2023-12-20 02:53:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122074462] [2023-12-20 02:53:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:40,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122074462] [2023-12-20 02:53:40,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122074462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:40,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:40,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:53:40,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937348745] [2023-12-20 02:53:40,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:40,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:53:40,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:40,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:53:40,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:53:40,355 INFO L87 Difference]: Start difference. First operand 6201 states and 8377 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:40,440 INFO L93 Difference]: Finished difference Result 9978 states and 13919 transitions. [2023-12-20 02:53:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:53:40,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-12-20 02:53:40,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:40,445 INFO L225 Difference]: With dead ends: 9978 [2023-12-20 02:53:40,445 INFO L226 Difference]: Without dead ends: 5960 [2023-12-20 02:53:40,450 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 [2023-12-20 02:53:40,450 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 1200 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:40,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1728 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:53:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2023-12-20 02:53:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 5956. [2023-12-20 02:53:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5954 states have (on average 1.3846153846153846) internal successors, (8244), 5955 states have internal predecessors, (8244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 8244 transitions. [2023-12-20 02:53:40,517 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 8244 transitions. Word has length 69 [2023-12-20 02:53:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:40,517 INFO L495 AbstractCegarLoop]: Abstraction has 5956 states and 8244 transitions. [2023-12-20 02:53:40,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:40,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 8244 transitions. [2023-12-20 02:53:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:53:40,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:40,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:40,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:53:40,522 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:40,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:40,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1302640947, now seen corresponding path program 1 times [2023-12-20 02:53:40,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:40,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13735278] [2023-12-20 02:53:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:40,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:40,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13735278] [2023-12-20 02:53:40,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13735278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:40,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:40,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:53:40,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419027705] [2023-12-20 02:53:40,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:40,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:53:40,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:40,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:53:40,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:53:40,777 INFO L87 Difference]: Start difference. First operand 5956 states and 8244 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:42,510 INFO L93 Difference]: Finished difference Result 11698 states and 16902 transitions. [2023-12-20 02:53:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:53:42,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:53:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:42,518 INFO L225 Difference]: With dead ends: 11698 [2023-12-20 02:53:42,518 INFO L226 Difference]: Without dead ends: 9018 [2023-12-20 02:53:42,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:53:42,522 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 5929 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 4207 SdHoareTripleChecker+Invalid, 3968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:42,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5929 Valid, 4207 Invalid, 3968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 02:53:42,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9018 states. [2023-12-20 02:53:42,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9018 to 5964. [2023-12-20 02:53:42,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5964 states, 5962 states have (on average 1.384770211338477) internal successors, (8256), 5963 states have internal predecessors, (8256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5964 states to 5964 states and 8256 transitions. [2023-12-20 02:53:42,577 INFO L78 Accepts]: Start accepts. Automaton has 5964 states and 8256 transitions. Word has length 70 [2023-12-20 02:53:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:42,577 INFO L495 AbstractCegarLoop]: Abstraction has 5964 states and 8256 transitions. [2023-12-20 02:53:42,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5964 states and 8256 transitions. [2023-12-20 02:53:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:53:42,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:42,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:42,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:53:42,581 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:42,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:42,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1337543172, now seen corresponding path program 1 times [2023-12-20 02:53:42,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:42,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724176168] [2023-12-20 02:53:42,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:42,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:42,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:42,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724176168] [2023-12-20 02:53:42,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724176168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:42,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:42,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:53:42,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674244226] [2023-12-20 02:53:42,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:42,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:53:42,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:42,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:53:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:53:42,819 INFO L87 Difference]: Start difference. First operand 5964 states and 8256 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:44,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:44,758 INFO L93 Difference]: Finished difference Result 16446 states and 23718 transitions. [2023-12-20 02:53:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:53:44,759 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:53:44,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:44,772 INFO L225 Difference]: With dead ends: 16446 [2023-12-20 02:53:44,773 INFO L226 Difference]: Without dead ends: 13747 [2023-12-20 02:53:44,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:53:44,778 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 5435 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 4593 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5435 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 4640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 4593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:44,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5435 Valid, 4697 Invalid, 4640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 4593 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:53:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13747 states. [2023-12-20 02:53:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13747 to 5964. [2023-12-20 02:53:44,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5964 states, 5962 states have (on average 1.3846024823884602) internal successors, (8255), 5963 states have internal predecessors, (8255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5964 states to 5964 states and 8255 transitions. [2023-12-20 02:53:44,858 INFO L78 Accepts]: Start accepts. Automaton has 5964 states and 8255 transitions. Word has length 70 [2023-12-20 02:53:44,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:44,858 INFO L495 AbstractCegarLoop]: Abstraction has 5964 states and 8255 transitions. [2023-12-20 02:53:44,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5964 states and 8255 transitions. [2023-12-20 02:53:44,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:53:44,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:44,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:44,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:53:44,862 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:44,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:44,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1077974177, now seen corresponding path program 1 times [2023-12-20 02:53:44,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:44,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193351520] [2023-12-20 02:53:44,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:44,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:44,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:44,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193351520] [2023-12-20 02:53:44,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193351520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:44,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:44,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:53:44,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827660827] [2023-12-20 02:53:44,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:44,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:53:44,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:44,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:53:44,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:53:44,904 INFO L87 Difference]: Start difference. First operand 5964 states and 8255 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:44,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:44,967 INFO L93 Difference]: Finished difference Result 10138 states and 14712 transitions. [2023-12-20 02:53:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:53:44,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:53:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:44,975 INFO L225 Difference]: With dead ends: 10138 [2023-12-20 02:53:44,975 INFO L226 Difference]: Without dead ends: 7109 [2023-12-20 02:53:44,979 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 [2023-12-20 02:53:44,979 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 751 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:44,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 1898 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:53:44,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7109 states. [2023-12-20 02:53:45,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7109 to 5865. [2023-12-20 02:53:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5865 states, 5863 states have (on average 1.413781340610609) internal successors, (8289), 5864 states have internal predecessors, (8289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:45,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5865 states to 5865 states and 8289 transitions. [2023-12-20 02:53:45,047 INFO L78 Accepts]: Start accepts. Automaton has 5865 states and 8289 transitions. Word has length 70 [2023-12-20 02:53:45,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:45,047 INFO L495 AbstractCegarLoop]: Abstraction has 5865 states and 8289 transitions. [2023-12-20 02:53:45,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:45,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5865 states and 8289 transitions. [2023-12-20 02:53:45,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:53:45,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:45,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:45,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:53:45,051 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:45,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:45,051 INFO L85 PathProgramCache]: Analyzing trace with hash -30289550, now seen corresponding path program 1 times [2023-12-20 02:53:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:45,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178715336] [2023-12-20 02:53:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:45,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:45,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:45,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178715336] [2023-12-20 02:53:45,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178715336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:45,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:45,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:53:45,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966377597] [2023-12-20 02:53:45,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:45,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:53:45,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:45,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:53:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:53:45,244 INFO L87 Difference]: Start difference. First operand 5865 states and 8289 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:46,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:46,988 INFO L93 Difference]: Finished difference Result 10767 states and 15498 transitions. [2023-12-20 02:53:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:53:46,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:53:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:46,997 INFO L225 Difference]: With dead ends: 10767 [2023-12-20 02:53:46,997 INFO L226 Difference]: Without dead ends: 9695 [2023-12-20 02:53:46,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:53:47,000 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 4629 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 3572 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4629 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:47,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4629 Valid, 4023 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3572 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 02:53:47,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9695 states. [2023-12-20 02:53:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9695 to 5865. [2023-12-20 02:53:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5865 states, 5863 states have (on average 1.413610779464438) internal successors, (8288), 5864 states have internal predecessors, (8288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5865 states to 5865 states and 8288 transitions. [2023-12-20 02:53:47,063 INFO L78 Accepts]: Start accepts. Automaton has 5865 states and 8288 transitions. Word has length 70 [2023-12-20 02:53:47,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:47,063 INFO L495 AbstractCegarLoop]: Abstraction has 5865 states and 8288 transitions. [2023-12-20 02:53:47,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5865 states and 8288 transitions. [2023-12-20 02:53:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:53:47,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:47,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:47,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:53:47,067 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:47,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:47,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1395696457, now seen corresponding path program 1 times [2023-12-20 02:53:47,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:47,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589962827] [2023-12-20 02:53:47,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:47,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:47,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589962827] [2023-12-20 02:53:47,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589962827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:47,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:47,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:53:47,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177338109] [2023-12-20 02:53:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:47,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:53:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:47,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:53:47,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:53:47,105 INFO L87 Difference]: Start difference. First operand 5865 states and 8288 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:47,175 INFO L93 Difference]: Finished difference Result 12325 states and 18148 transitions. [2023-12-20 02:53:47,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:53:47,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:53:47,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:47,183 INFO L225 Difference]: With dead ends: 12325 [2023-12-20 02:53:47,183 INFO L226 Difference]: Without dead ends: 8413 [2023-12-20 02:53:47,187 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 [2023-12-20 02:53:47,188 INFO L413 NwaCegarLoop]: 1295 mSDtfsCounter, 768 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:47,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1821 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:53:47,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8413 states. [2023-12-20 02:53:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8413 to 8411. [2023-12-20 02:53:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8411 states, 8409 states have (on average 1.442739921512665) internal successors, (12132), 8410 states have internal predecessors, (12132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8411 states to 8411 states and 12132 transitions. [2023-12-20 02:53:47,263 INFO L78 Accepts]: Start accepts. Automaton has 8411 states and 12132 transitions. Word has length 71 [2023-12-20 02:53:47,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:47,263 INFO L495 AbstractCegarLoop]: Abstraction has 8411 states and 12132 transitions. [2023-12-20 02:53:47,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 8411 states and 12132 transitions. [2023-12-20 02:53:47,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:53:47,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:47,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:47,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:53:47,269 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:47,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:47,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1484957772, now seen corresponding path program 1 times [2023-12-20 02:53:47,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:47,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834460817] [2023-12-20 02:53:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:47,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:47,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:47,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834460817] [2023-12-20 02:53:47,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834460817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:47,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:47,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:53:47,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781209530] [2023-12-20 02:53:47,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:47,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:53:47,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:47,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:53:47,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:53:47,312 INFO L87 Difference]: Start difference. First operand 8411 states and 12132 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:47,414 INFO L93 Difference]: Finished difference Result 18227 states and 27041 transitions. [2023-12-20 02:53:47,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:53:47,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:53:47,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:47,425 INFO L225 Difference]: With dead ends: 18227 [2023-12-20 02:53:47,426 INFO L226 Difference]: Without dead ends: 11604 [2023-12-20 02:53:47,432 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 [2023-12-20 02:53:47,433 INFO L413 NwaCegarLoop]: 1241 mSDtfsCounter, 706 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:47,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1816 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:53:47,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11604 states. [2023-12-20 02:53:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11604 to 9323. [2023-12-20 02:53:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9323 states, 9321 states have (on average 1.4530629760755285) internal successors, (13544), 9322 states have internal predecessors, (13544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9323 states to 9323 states and 13544 transitions. [2023-12-20 02:53:47,532 INFO L78 Accepts]: Start accepts. Automaton has 9323 states and 13544 transitions. Word has length 71 [2023-12-20 02:53:47,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:47,532 INFO L495 AbstractCegarLoop]: Abstraction has 9323 states and 13544 transitions. [2023-12-20 02:53:47,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 9323 states and 13544 transitions. [2023-12-20 02:53:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:53:47,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:47,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:47,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:53:47,535 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:47,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1208387843, now seen corresponding path program 1 times [2023-12-20 02:53:47,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:47,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172900297] [2023-12-20 02:53:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:47,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:47,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:47,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172900297] [2023-12-20 02:53:47,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172900297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:47,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:47,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:53:47,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407918229] [2023-12-20 02:53:47,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:47,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:53:47,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:47,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:53:47,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:53:47,587 INFO L87 Difference]: Start difference. First operand 9323 states and 13544 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:47,677 INFO L93 Difference]: Finished difference Result 24308 states and 35783 transitions. [2023-12-20 02:53:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:53:47,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:53:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:47,695 INFO L225 Difference]: With dead ends: 24308 [2023-12-20 02:53:47,695 INFO L226 Difference]: Without dead ends: 16235 [2023-12-20 02:53:47,706 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 [2023-12-20 02:53:47,707 INFO L413 NwaCegarLoop]: 1297 mSDtfsCounter, 767 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:47,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 2244 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:53:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16235 states. [2023-12-20 02:53:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16235 to 16233. [2023-12-20 02:53:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16233 states, 16231 states have (on average 1.4444581356663175) internal successors, (23445), 16232 states have internal predecessors, (23445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16233 states to 16233 states and 23445 transitions. [2023-12-20 02:53:47,870 INFO L78 Accepts]: Start accepts. Automaton has 16233 states and 23445 transitions. Word has length 71 [2023-12-20 02:53:47,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:47,871 INFO L495 AbstractCegarLoop]: Abstraction has 16233 states and 23445 transitions. [2023-12-20 02:53:47,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand 16233 states and 23445 transitions. [2023-12-20 02:53:47,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:53:47,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:47,874 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] [2023-12-20 02:53:47,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:53:47,874 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:47,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:47,874 INFO L85 PathProgramCache]: Analyzing trace with hash -372982566, now seen corresponding path program 1 times [2023-12-20 02:53:47,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:47,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109515145] [2023-12-20 02:53:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:47,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:48,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:48,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109515145] [2023-12-20 02:53:48,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109515145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:48,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:48,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:53:48,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569554549] [2023-12-20 02:53:48,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:48,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:53:48,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:48,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:53:48,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:53:48,003 INFO L87 Difference]: Start difference. First operand 16233 states and 23445 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 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) [2023-12-20 02:53:49,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:49,370 INFO L93 Difference]: Finished difference Result 24794 states and 35503 transitions. [2023-12-20 02:53:49,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:53:49,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 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 [2023-12-20 02:53:49,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:49,397 INFO L225 Difference]: With dead ends: 24794 [2023-12-20 02:53:49,397 INFO L226 Difference]: Without dead ends: 24714 [2023-12-20 02:53:49,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:53:49,405 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 4979 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4979 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 2991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:49,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4979 Valid, 3065 Invalid, 2991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:53:49,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24714 states. [2023-12-20 02:53:49,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24714 to 16233. [2023-12-20 02:53:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16233 states, 16231 states have (on average 1.4443965251678885) internal successors, (23444), 16232 states have internal predecessors, (23444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:49,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16233 states to 16233 states and 23444 transitions. [2023-12-20 02:53:49,606 INFO L78 Accepts]: Start accepts. Automaton has 16233 states and 23444 transitions. Word has length 72 [2023-12-20 02:53:49,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:49,606 INFO L495 AbstractCegarLoop]: Abstraction has 16233 states and 23444 transitions. [2023-12-20 02:53:49,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 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) [2023-12-20 02:53:49,606 INFO L276 IsEmpty]: Start isEmpty. Operand 16233 states and 23444 transitions. [2023-12-20 02:53:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:53:49,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:49,609 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] [2023-12-20 02:53:49,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:53:49,609 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:49,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1214563715, now seen corresponding path program 1 times [2023-12-20 02:53:49,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:49,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917903571] [2023-12-20 02:53:49,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:49,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:49,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:49,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917903571] [2023-12-20 02:53:49,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917903571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:49,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:49,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:53:49,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991929655] [2023-12-20 02:53:49,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:49,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:53:49,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:49,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:53:49,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:53:49,645 INFO L87 Difference]: Start difference. First operand 16233 states and 23444 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2023-12-20 02:53:49,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:49,758 INFO L93 Difference]: Finished difference Result 34443 states and 50235 transitions. [2023-12-20 02:53:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:53:49,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 [2023-12-20 02:53:49,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:49,778 INFO L225 Difference]: With dead ends: 34443 [2023-12-20 02:53:49,778 INFO L226 Difference]: Without dead ends: 18988 [2023-12-20 02:53:49,791 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 [2023-12-20 02:53:49,792 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 1104 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:49,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1504 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:53:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18988 states. [2023-12-20 02:53:49,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18988 to 15187. [2023-12-20 02:53:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.45584458347053) internal successors, (22107), 15186 states have internal predecessors, (22107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22107 transitions. [2023-12-20 02:53:49,954 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22107 transitions. Word has length 72 [2023-12-20 02:53:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:49,954 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22107 transitions. [2023-12-20 02:53:49,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2023-12-20 02:53:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22107 transitions. [2023-12-20 02:53:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:53:49,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:49,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:49,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:53:49,957 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:49,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:49,957 INFO L85 PathProgramCache]: Analyzing trace with hash 805421842, now seen corresponding path program 1 times [2023-12-20 02:53:49,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:49,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155831041] [2023-12-20 02:53:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:49,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:50,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:50,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155831041] [2023-12-20 02:53:50,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155831041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:50,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:50,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:53:50,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992516273] [2023-12-20 02:53:50,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:50,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:53:50,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:50,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:53:50,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:53:50,154 INFO L87 Difference]: Start difference. First operand 15187 states and 22107 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:51,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:51,915 INFO L93 Difference]: Finished difference Result 27104 states and 39238 transitions. [2023-12-20 02:53:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:53:51,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-20 02:53:51,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:51,942 INFO L225 Difference]: With dead ends: 27104 [2023-12-20 02:53:51,943 INFO L226 Difference]: Without dead ends: 27001 [2023-12-20 02:53:51,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:53:51,951 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 5532 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 3215 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:51,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5532 Valid, 3450 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3215 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:53:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27001 states. [2023-12-20 02:53:52,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27001 to 15187. [2023-12-20 02:53:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.4557787290088904) internal successors, (22106), 15186 states have internal predecessors, (22106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:52,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22106 transitions. [2023-12-20 02:53:52,158 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22106 transitions. Word has length 73 [2023-12-20 02:53:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:52,158 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22106 transitions. [2023-12-20 02:53:52,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22106 transitions. [2023-12-20 02:53:52,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:53:52,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:52,160 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] [2023-12-20 02:53:52,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:53:52,160 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:52,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:52,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1846027830, now seen corresponding path program 1 times [2023-12-20 02:53:52,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:52,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920999863] [2023-12-20 02:53:52,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:52,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:52,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:52,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920999863] [2023-12-20 02:53:52,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920999863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:52,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:52,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:53:52,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232995253] [2023-12-20 02:53:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:52,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:53:52,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:52,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:53:52,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:53:52,338 INFO L87 Difference]: Start difference. First operand 15187 states and 22106 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:53,486 INFO L93 Difference]: Finished difference Result 19561 states and 28248 transitions. [2023-12-20 02:53:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:53:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-20 02:53:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:53,507 INFO L225 Difference]: With dead ends: 19561 [2023-12-20 02:53:53,507 INFO L226 Difference]: Without dead ends: 19495 [2023-12-20 02:53:53,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:53:53,514 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 4628 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:53,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4628 Valid, 2828 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:53:53,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19495 states. [2023-12-20 02:53:53,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19495 to 15187. [2023-12-20 02:53:53,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.4557128745472505) internal successors, (22105), 15186 states have internal predecessors, (22105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:53,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22105 transitions. [2023-12-20 02:53:53,675 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22105 transitions. Word has length 73 [2023-12-20 02:53:53,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:53,675 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22105 transitions. [2023-12-20 02:53:53,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22105 transitions. [2023-12-20 02:53:53,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:53:53,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:53,677 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] [2023-12-20 02:53:53,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 02:53:53,677 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:53,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:53,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1717177262, now seen corresponding path program 1 times [2023-12-20 02:53:53,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:53,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571428913] [2023-12-20 02:53:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:53,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:53,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:53,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571428913] [2023-12-20 02:53:53,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571428913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:53,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:53,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:53:53,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708845836] [2023-12-20 02:53:53,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:53,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:53:53,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:53,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:53:53,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:53:53,829 INFO L87 Difference]: Start difference. First operand 15187 states and 22105 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:55,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:55,220 INFO L93 Difference]: Finished difference Result 22849 states and 33112 transitions. [2023-12-20 02:53:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:53:55,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-20 02:53:55,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:55,244 INFO L225 Difference]: With dead ends: 22849 [2023-12-20 02:53:55,244 INFO L226 Difference]: Without dead ends: 22773 [2023-12-20 02:53:55,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:53:55,251 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 3766 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3766 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:55,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3766 Valid, 3339 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:53:55,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22773 states. [2023-12-20 02:53:55,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22773 to 15187. [2023-12-20 02:53:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15187 states, 15185 states have (on average 1.4556470200856109) internal successors, (22104), 15186 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15187 states to 15187 states and 22104 transitions. [2023-12-20 02:53:55,449 INFO L78 Accepts]: Start accepts. Automaton has 15187 states and 22104 transitions. Word has length 73 [2023-12-20 02:53:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:55,449 INFO L495 AbstractCegarLoop]: Abstraction has 15187 states and 22104 transitions. [2023-12-20 02:53:55,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 15187 states and 22104 transitions. [2023-12-20 02:53:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:53:55,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:55,452 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] [2023-12-20 02:53:55,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 02:53:55,456 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:55,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2072332207, now seen corresponding path program 1 times [2023-12-20 02:53:55,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:55,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703335870] [2023-12-20 02:53:55,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:55,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:55,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:55,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703335870] [2023-12-20 02:53:55,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703335870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:55,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:55,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:53:55,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583639516] [2023-12-20 02:53:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:55,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:53:55,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:55,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:53:55,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:53:55,660 INFO L87 Difference]: Start difference. First operand 15187 states and 22104 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:57,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:57,671 INFO L93 Difference]: Finished difference Result 27084 states and 39207 transitions. [2023-12-20 02:53:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:53:57,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-20 02:53:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:57,706 INFO L225 Difference]: With dead ends: 27084 [2023-12-20 02:53:57,706 INFO L226 Difference]: Without dead ends: 26993 [2023-12-20 02:53:57,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:53:57,717 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 4690 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4690 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:57,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4690 Valid, 4147 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:53:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26993 states. [2023-12-20 02:53:57,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26993 to 15179. [2023-12-20 02:53:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15179 states, 15177 states have (on average 1.4556895302101864) internal successors, (22093), 15178 states have internal predecessors, (22093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15179 states to 15179 states and 22093 transitions. [2023-12-20 02:53:57,959 INFO L78 Accepts]: Start accepts. Automaton has 15179 states and 22093 transitions. Word has length 73 [2023-12-20 02:53:57,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:57,959 INFO L495 AbstractCegarLoop]: Abstraction has 15179 states and 22093 transitions. [2023-12-20 02:53:57,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 15179 states and 22093 transitions. [2023-12-20 02:53:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:53:57,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:57,962 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] [2023-12-20 02:53:57,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 02:53:57,962 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:57,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:57,962 INFO L85 PathProgramCache]: Analyzing trace with hash 861010402, now seen corresponding path program 1 times [2023-12-20 02:53:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:57,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417116679] [2023-12-20 02:53:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:57,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:58,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:58,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417116679] [2023-12-20 02:53:58,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417116679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:58,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:58,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:53:58,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738380502] [2023-12-20 02:53:58,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:58,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:53:58,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:58,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:53:58,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:53:58,109 INFO L87 Difference]: Start difference. First operand 15179 states and 22093 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:59,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:53:59,444 INFO L93 Difference]: Finished difference Result 22817 states and 33083 transitions. [2023-12-20 02:53:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:53:59,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-20 02:53:59,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:53:59,465 INFO L225 Difference]: With dead ends: 22817 [2023-12-20 02:53:59,466 INFO L226 Difference]: Without dead ends: 22751 [2023-12-20 02:53:59,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:53:59,472 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 3757 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2995 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3757 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:53:59,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3757 Valid, 3492 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2995 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:53:59,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22751 states. [2023-12-20 02:53:59,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22751 to 15179. [2023-12-20 02:53:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15179 states, 15177 states have (on average 1.455623641035778) internal successors, (22092), 15178 states have internal predecessors, (22092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:59,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15179 states to 15179 states and 22092 transitions. [2023-12-20 02:53:59,638 INFO L78 Accepts]: Start accepts. Automaton has 15179 states and 22092 transitions. Word has length 73 [2023-12-20 02:53:59,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:53:59,638 INFO L495 AbstractCegarLoop]: Abstraction has 15179 states and 22092 transitions. [2023-12-20 02:53:59,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:53:59,639 INFO L276 IsEmpty]: Start isEmpty. Operand 15179 states and 22092 transitions. [2023-12-20 02:53:59,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:53:59,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:53:59,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:53:59,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 02:53:59,641 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:53:59,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:53:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash 895912627, now seen corresponding path program 1 times [2023-12-20 02:53:59,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:53:59,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3262115] [2023-12-20 02:53:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:53:59,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:53:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:53:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:53:59,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:53:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3262115] [2023-12-20 02:53:59,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3262115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:53:59,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:53:59,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:53:59,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48174609] [2023-12-20 02:53:59,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:53:59,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:53:59,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:53:59,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:53:59,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:53:59,941 INFO L87 Difference]: Start difference. First operand 15179 states and 22092 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:02,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:02,082 INFO L93 Difference]: Finished difference Result 51312 states and 74386 transitions. [2023-12-20 02:54:02,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-20 02:54:02,082 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-20 02:54:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:02,143 INFO L225 Difference]: With dead ends: 51312 [2023-12-20 02:54:02,143 INFO L226 Difference]: Without dead ends: 51236 [2023-12-20 02:54:02,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 02:54:02,160 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 8913 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8913 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 3519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:02,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8913 Valid, 3410 Invalid, 3519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:54:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51236 states. [2023-12-20 02:54:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51236 to 15183. [2023-12-20 02:54:02,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15183 states, 15181 states have (on average 1.4555035900138331) internal successors, (22096), 15182 states have internal predecessors, (22096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:02,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 22096 transitions. [2023-12-20 02:54:02,467 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 22096 transitions. Word has length 73 [2023-12-20 02:54:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:02,468 INFO L495 AbstractCegarLoop]: Abstraction has 15183 states and 22096 transitions. [2023-12-20 02:54:02,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 22096 transitions. [2023-12-20 02:54:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:54:02,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:02,470 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] [2023-12-20 02:54:02,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 02:54:02,470 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:02,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1391275332, now seen corresponding path program 1 times [2023-12-20 02:54:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:02,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831582779] [2023-12-20 02:54:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:02,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:02,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831582779] [2023-12-20 02:54:02,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831582779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:02,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:02,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:54:02,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322948445] [2023-12-20 02:54:02,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:02,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:54:02,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:02,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:54:02,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:54:02,725 INFO L87 Difference]: Start difference. First operand 15183 states and 22096 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:03,919 INFO L93 Difference]: Finished difference Result 19555 states and 28236 transitions. [2023-12-20 02:54:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:54:03,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-20 02:54:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:03,937 INFO L225 Difference]: With dead ends: 19555 [2023-12-20 02:54:03,938 INFO L226 Difference]: Without dead ends: 19486 [2023-12-20 02:54:03,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:54:03,943 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 4589 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4589 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:03,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4589 Valid, 2797 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:54:03,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19486 states. [2023-12-20 02:54:04,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19486 to 15178. [2023-12-20 02:54:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15178 states, 15176 states have (on average 1.455390089615182) internal successors, (22087), 15177 states have internal predecessors, (22087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15178 states to 15178 states and 22087 transitions. [2023-12-20 02:54:04,099 INFO L78 Accepts]: Start accepts. Automaton has 15178 states and 22087 transitions. Word has length 73 [2023-12-20 02:54:04,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:04,099 INFO L495 AbstractCegarLoop]: Abstraction has 15178 states and 22087 transitions. [2023-12-20 02:54:04,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:04,099 INFO L276 IsEmpty]: Start isEmpty. Operand 15178 states and 22087 transitions. [2023-12-20 02:54:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-20 02:54:04,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:04,101 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] [2023-12-20 02:54:04,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 02:54:04,102 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:04,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:04,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2099397559, now seen corresponding path program 1 times [2023-12-20 02:54:04,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:04,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682906782] [2023-12-20 02:54:04,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:04,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:04,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:04,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682906782] [2023-12-20 02:54:04,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682906782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:04,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:04,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:54:04,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817869545] [2023-12-20 02:54:04,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:04,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:54:04,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:04,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:54:04,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:54:04,225 INFO L87 Difference]: Start difference. First operand 15178 states and 22087 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2023-12-20 02:54:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:05,532 INFO L93 Difference]: Finished difference Result 19572 states and 28240 transitions. [2023-12-20 02:54:05,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:54:05,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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 [2023-12-20 02:54:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:05,550 INFO L225 Difference]: With dead ends: 19572 [2023-12-20 02:54:05,550 INFO L226 Difference]: Without dead ends: 19496 [2023-12-20 02:54:05,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:54:05,556 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 4297 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:05,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4297 Valid, 2949 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:54:05,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19496 states. [2023-12-20 02:54:05,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19496 to 15174. [2023-12-20 02:54:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15174 states, 15172 states have (on average 1.4554442393883469) internal successors, (22082), 15173 states have internal predecessors, (22082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:05,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15174 states to 15174 states and 22082 transitions. [2023-12-20 02:54:05,716 INFO L78 Accepts]: Start accepts. Automaton has 15174 states and 22082 transitions. Word has length 74 [2023-12-20 02:54:05,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:05,716 INFO L495 AbstractCegarLoop]: Abstraction has 15174 states and 22082 transitions. [2023-12-20 02:54:05,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2023-12-20 02:54:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand 15174 states and 22082 transitions. [2023-12-20 02:54:05,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-20 02:54:05,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:05,719 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] [2023-12-20 02:54:05,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 02:54:05,719 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:05,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:05,719 INFO L85 PathProgramCache]: Analyzing trace with hash 327495962, now seen corresponding path program 1 times [2023-12-20 02:54:05,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:05,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256315349] [2023-12-20 02:54:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:05,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:06,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:06,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256315349] [2023-12-20 02:54:06,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256315349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:06,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:06,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 02:54:06,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855538554] [2023-12-20 02:54:06,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:06,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:54:06,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:06,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:54:06,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:54:06,101 INFO L87 Difference]: Start difference. First operand 15174 states and 22082 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 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) [2023-12-20 02:54:07,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:07,911 INFO L93 Difference]: Finished difference Result 49256 states and 71677 transitions. [2023-12-20 02:54:07,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-20 02:54:07,911 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 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 [2023-12-20 02:54:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:07,970 INFO L225 Difference]: With dead ends: 49256 [2023-12-20 02:54:07,970 INFO L226 Difference]: Without dead ends: 49164 [2023-12-20 02:54:07,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=269, Invalid=921, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:54:07,987 INFO L413 NwaCegarLoop]: 1429 mSDtfsCounter, 9500 mSDsluCounter, 8580 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9500 SdHoareTripleChecker+Valid, 10009 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:07,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9500 Valid, 10009 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:54:08,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49164 states. [2023-12-20 02:54:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49164 to 15146. [2023-12-20 02:54:08,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15146 states, 15145 states have (on average 1.4555298778474743) internal successors, (22044), 15145 states have internal predecessors, (22044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15146 states to 15146 states and 22044 transitions. [2023-12-20 02:54:08,288 INFO L78 Accepts]: Start accepts. Automaton has 15146 states and 22044 transitions. Word has length 75 [2023-12-20 02:54:08,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:08,288 INFO L495 AbstractCegarLoop]: Abstraction has 15146 states and 22044 transitions. [2023-12-20 02:54:08,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 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) [2023-12-20 02:54:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 15146 states and 22044 transitions. [2023-12-20 02:54:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-20 02:54:08,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:08,290 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] [2023-12-20 02:54:08,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 02:54:08,291 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:08,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:08,291 INFO L85 PathProgramCache]: Analyzing trace with hash 661817843, now seen corresponding path program 1 times [2023-12-20 02:54:08,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:08,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972608502] [2023-12-20 02:54:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:08,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:08,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972608502] [2023-12-20 02:54:08,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972608502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:08,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:08,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:08,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434055290] [2023-12-20 02:54:08,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:08,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:54:08,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:08,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:54:08,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:08,351 INFO L87 Difference]: Start difference. First operand 15146 states and 22044 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 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) [2023-12-20 02:54:08,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:08,700 INFO L93 Difference]: Finished difference Result 57979 states and 85128 transitions. [2023-12-20 02:54:08,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:54:08,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 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 [2023-12-20 02:54:08,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:08,748 INFO L225 Difference]: With dead ends: 57979 [2023-12-20 02:54:08,748 INFO L226 Difference]: Without dead ends: 44025 [2023-12-20 02:54:08,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:54:08,756 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 3764 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3764 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:08,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3764 Valid, 2549 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:08,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44025 states. [2023-12-20 02:54:09,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44025 to 28348. [2023-12-20 02:54:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28348 states, 28347 states have (on average 1.4479839136416552) internal successors, (41046), 28347 states have internal predecessors, (41046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28348 states to 28348 states and 41046 transitions. [2023-12-20 02:54:09,188 INFO L78 Accepts]: Start accepts. Automaton has 28348 states and 41046 transitions. Word has length 75 [2023-12-20 02:54:09,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:09,188 INFO L495 AbstractCegarLoop]: Abstraction has 28348 states and 41046 transitions. [2023-12-20 02:54:09,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 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) [2023-12-20 02:54:09,189 INFO L276 IsEmpty]: Start isEmpty. Operand 28348 states and 41046 transitions. [2023-12-20 02:54:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:54:09,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:09,191 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] [2023-12-20 02:54:09,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 02:54:09,191 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:09,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:09,192 INFO L85 PathProgramCache]: Analyzing trace with hash 22124065, now seen corresponding path program 1 times [2023-12-20 02:54:09,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:09,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956230331] [2023-12-20 02:54:09,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:09,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:10,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:10,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956230331] [2023-12-20 02:54:10,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956230331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:10,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:10,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-20 02:54:10,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999431856] [2023-12-20 02:54:10,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:10,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-20 02:54:10,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:10,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-20 02:54:10,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:54:10,378 INFO L87 Difference]: Start difference. First operand 28348 states and 41046 transitions. Second operand has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 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) [2023-12-20 02:54:15,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:15,881 INFO L93 Difference]: Finished difference Result 41854 states and 60184 transitions. [2023-12-20 02:54:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-20 02:54:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 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 [2023-12-20 02:54:15,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:15,926 INFO L225 Difference]: With dead ends: 41854 [2023-12-20 02:54:15,926 INFO L226 Difference]: Without dead ends: 41789 [2023-12-20 02:54:15,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=405, Invalid=2145, Unknown=0, NotChecked=0, Total=2550 [2023-12-20 02:54:15,938 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 9760 mSDsluCounter, 19158 mSDsCounter, 0 mSdLazyCounter, 8111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9760 SdHoareTripleChecker+Valid, 20477 SdHoareTripleChecker+Invalid, 8114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:15,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9760 Valid, 20477 Invalid, 8114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 8111 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-20 02:54:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41789 states. [2023-12-20 02:54:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41789 to 28366. [2023-12-20 02:54:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28366 states, 28365 states have (on average 1.4479111581173982) internal successors, (41070), 28365 states have internal predecessors, (41070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28366 states to 28366 states and 41070 transitions. [2023-12-20 02:54:16,274 INFO L78 Accepts]: Start accepts. Automaton has 28366 states and 41070 transitions. Word has length 76 [2023-12-20 02:54:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:16,274 INFO L495 AbstractCegarLoop]: Abstraction has 28366 states and 41070 transitions. [2023-12-20 02:54:16,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 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) [2023-12-20 02:54:16,274 INFO L276 IsEmpty]: Start isEmpty. Operand 28366 states and 41070 transitions. [2023-12-20 02:54:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:54:16,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:16,277 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] [2023-12-20 02:54:16,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 02:54:16,277 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:16,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:16,277 INFO L85 PathProgramCache]: Analyzing trace with hash 839549454, now seen corresponding path program 1 times [2023-12-20 02:54:16,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:16,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013946532] [2023-12-20 02:54:16,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:16,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:16,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:16,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013946532] [2023-12-20 02:54:16,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013946532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:16,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:16,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 02:54:16,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624815753] [2023-12-20 02:54:16,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:16,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:54:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:16,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:54:16,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:54:16,677 INFO L87 Difference]: Start difference. First operand 28366 states and 41070 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 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) [2023-12-20 02:54:18,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:18,769 INFO L93 Difference]: Finished difference Result 95323 states and 137456 transitions. [2023-12-20 02:54:18,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-20 02:54:18,770 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 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 [2023-12-20 02:54:18,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:18,887 INFO L225 Difference]: With dead ends: 95323 [2023-12-20 02:54:18,887 INFO L226 Difference]: Without dead ends: 95233 [2023-12-20 02:54:18,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=282, Invalid=978, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 02:54:18,919 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 10262 mSDsluCounter, 7894 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10262 SdHoareTripleChecker+Valid, 9410 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:18,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10262 Valid, 9410 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:54:18,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95233 states. [2023-12-20 02:54:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95233 to 28340. [2023-12-20 02:54:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28340 states, 28339 states have (on average 1.448039803803945) internal successors, (41036), 28339 states have internal predecessors, (41036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28340 states to 28340 states and 41036 transitions. [2023-12-20 02:54:19,634 INFO L78 Accepts]: Start accepts. Automaton has 28340 states and 41036 transitions. Word has length 76 [2023-12-20 02:54:19,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:19,635 INFO L495 AbstractCegarLoop]: Abstraction has 28340 states and 41036 transitions. [2023-12-20 02:54:19,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 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) [2023-12-20 02:54:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 28340 states and 41036 transitions. [2023-12-20 02:54:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:54:19,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:19,637 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] [2023-12-20 02:54:19,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 02:54:19,638 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:19,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash 941593760, now seen corresponding path program 1 times [2023-12-20 02:54:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894927107] [2023-12-20 02:54:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:19,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:20,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:20,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894927107] [2023-12-20 02:54:20,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894927107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:20,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:20,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-20 02:54:20,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528932524] [2023-12-20 02:54:20,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:20,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-20 02:54:20,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:20,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-20 02:54:20,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:54:20,697 INFO L87 Difference]: Start difference. First operand 28340 states and 41036 transitions. Second operand has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 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) [2023-12-20 02:54:26,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:26,315 INFO L93 Difference]: Finished difference Result 45185 states and 65009 transitions. [2023-12-20 02:54:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-20 02:54:26,316 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 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 [2023-12-20 02:54:26,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:26,362 INFO L225 Difference]: With dead ends: 45185 [2023-12-20 02:54:26,363 INFO L226 Difference]: Without dead ends: 45120 [2023-12-20 02:54:26,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=417, Invalid=1935, Unknown=0, NotChecked=0, Total=2352 [2023-12-20 02:54:26,378 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 9681 mSDsluCounter, 20570 mSDsCounter, 0 mSdLazyCounter, 8703 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9681 SdHoareTripleChecker+Valid, 21813 SdHoareTripleChecker+Invalid, 8708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:26,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9681 Valid, 21813 Invalid, 8708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 8703 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-20 02:54:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45120 states. [2023-12-20 02:54:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45120 to 28353. [2023-12-20 02:54:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28353 states, 28352 states have (on average 1.4479401805869074) internal successors, (41052), 28352 states have internal predecessors, (41052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28353 states to 28353 states and 41052 transitions. [2023-12-20 02:54:26,736 INFO L78 Accepts]: Start accepts. Automaton has 28353 states and 41052 transitions. Word has length 76 [2023-12-20 02:54:26,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:26,736 INFO L495 AbstractCegarLoop]: Abstraction has 28353 states and 41052 transitions. [2023-12-20 02:54:26,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 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) [2023-12-20 02:54:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand 28353 states and 41052 transitions. [2023-12-20 02:54:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:54:26,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:26,739 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] [2023-12-20 02:54:26,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 02:54:26,739 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:26,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash 814993886, now seen corresponding path program 1 times [2023-12-20 02:54:26,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:26,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843742915] [2023-12-20 02:54:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:26,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:27,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:27,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843742915] [2023-12-20 02:54:27,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843742915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:27,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:27,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:54:27,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795617603] [2023-12-20 02:54:27,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:27,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:54:27,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:27,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:54:27,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:54:27,125 INFO L87 Difference]: Start difference. First operand 28353 states and 41052 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 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) [2023-12-20 02:54:28,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:28,420 INFO L93 Difference]: Finished difference Result 62873 states and 90731 transitions. [2023-12-20 02:54:28,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 02:54:28,420 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 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 [2023-12-20 02:54:28,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:28,497 INFO L225 Difference]: With dead ends: 62873 [2023-12-20 02:54:28,497 INFO L226 Difference]: Without dead ends: 62763 [2023-12-20 02:54:28,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:54:28,518 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 8178 mSDsluCounter, 5400 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8178 SdHoareTripleChecker+Valid, 6515 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:28,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8178 Valid, 6515 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:54:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62763 states. [2023-12-20 02:54:28,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62763 to 28307. [2023-12-20 02:54:28,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28307 states, 28306 states have (on average 1.4482441885112698) internal successors, (40994), 28306 states have internal predecessors, (40994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28307 states to 28307 states and 40994 transitions. [2023-12-20 02:54:28,969 INFO L78 Accepts]: Start accepts. Automaton has 28307 states and 40994 transitions. Word has length 76 [2023-12-20 02:54:28,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:28,970 INFO L495 AbstractCegarLoop]: Abstraction has 28307 states and 40994 transitions. [2023-12-20 02:54:28,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 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) [2023-12-20 02:54:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 28307 states and 40994 transitions. [2023-12-20 02:54:28,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:54:28,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:28,973 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] [2023-12-20 02:54:28,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-20 02:54:28,973 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:28,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:28,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1391764477, now seen corresponding path program 1 times [2023-12-20 02:54:28,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:28,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642792187] [2023-12-20 02:54:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:28,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:29,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:29,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642792187] [2023-12-20 02:54:29,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642792187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:29,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:29,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662233296] [2023-12-20 02:54:29,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:29,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:54:29,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:29,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:54:29,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:29,041 INFO L87 Difference]: Start difference. First operand 28307 states and 40994 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 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) [2023-12-20 02:54:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:29,227 INFO L93 Difference]: Finished difference Result 47795 states and 69248 transitions. [2023-12-20 02:54:29,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:54:29,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 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 [2023-12-20 02:54:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:29,248 INFO L225 Difference]: With dead ends: 47795 [2023-12-20 02:54:29,248 INFO L226 Difference]: Without dead ends: 20600 [2023-12-20 02:54:29,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:29,266 INFO L413 NwaCegarLoop]: 1028 mSDtfsCounter, 1507 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:29,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1787 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20600 states. [2023-12-20 02:54:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20600 to 20594. [2023-12-20 02:54:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20594 states, 20593 states have (on average 1.4336424998785995) internal successors, (29523), 20593 states have internal predecessors, (29523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20594 states to 20594 states and 29523 transitions. [2023-12-20 02:54:29,651 INFO L78 Accepts]: Start accepts. Automaton has 20594 states and 29523 transitions. Word has length 76 [2023-12-20 02:54:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:29,651 INFO L495 AbstractCegarLoop]: Abstraction has 20594 states and 29523 transitions. [2023-12-20 02:54:29,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 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) [2023-12-20 02:54:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 20594 states and 29523 transitions. [2023-12-20 02:54:29,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 02:54:29,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:29,654 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] [2023-12-20 02:54:29,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 02:54:29,654 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:29,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2124498390, now seen corresponding path program 1 times [2023-12-20 02:54:29,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:29,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855632319] [2023-12-20 02:54:29,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:29,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855632319] [2023-12-20 02:54:29,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855632319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:29,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:29,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:54:29,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869157940] [2023-12-20 02:54:29,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:29,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:54:29,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:29,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:54:29,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:54:29,902 INFO L87 Difference]: Start difference. First operand 20594 states and 29523 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 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) [2023-12-20 02:54:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:30,710 INFO L93 Difference]: Finished difference Result 36688 states and 52592 transitions. [2023-12-20 02:54:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:54:30,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 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 [2023-12-20 02:54:30,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:30,753 INFO L225 Difference]: With dead ends: 36688 [2023-12-20 02:54:30,753 INFO L226 Difference]: Without dead ends: 36608 [2023-12-20 02:54:30,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:54:30,766 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 4492 mSDsluCounter, 5019 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4492 SdHoareTripleChecker+Valid, 6284 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:30,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4492 Valid, 6284 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:54:30,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36608 states. [2023-12-20 02:54:31,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36608 to 20565. [2023-12-20 02:54:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20565 states, 20564 states have (on average 1.4337677494650847) internal successors, (29484), 20564 states have internal predecessors, (29484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:31,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20565 states to 20565 states and 29484 transitions. [2023-12-20 02:54:31,052 INFO L78 Accepts]: Start accepts. Automaton has 20565 states and 29484 transitions. Word has length 77 [2023-12-20 02:54:31,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:31,053 INFO L495 AbstractCegarLoop]: Abstraction has 20565 states and 29484 transitions. [2023-12-20 02:54:31,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 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) [2023-12-20 02:54:31,053 INFO L276 IsEmpty]: Start isEmpty. Operand 20565 states and 29484 transitions. [2023-12-20 02:54:31,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 02:54:31,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:31,056 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] [2023-12-20 02:54:31,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-20 02:54:31,056 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:31,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash -538079444, now seen corresponding path program 1 times [2023-12-20 02:54:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202826365] [2023-12-20 02:54:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:31,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:31,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:31,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202826365] [2023-12-20 02:54:31,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202826365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:31,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:31,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:54:31,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138549902] [2023-12-20 02:54:31,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:31,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:54:31,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:31,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:54:31,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:54:31,108 INFO L87 Difference]: Start difference. First operand 20565 states and 29484 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) [2023-12-20 02:54:31,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:31,358 INFO L93 Difference]: Finished difference Result 58075 states and 83630 transitions. [2023-12-20 02:54:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:54:31,358 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 [2023-12-20 02:54:31,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:31,395 INFO L225 Difference]: With dead ends: 58075 [2023-12-20 02:54:31,395 INFO L226 Difference]: Without dead ends: 38593 [2023-12-20 02:54:31,401 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 [2023-12-20 02:54:31,402 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 510 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:31,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1501 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:54:31,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38593 states. [2023-12-20 02:54:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38593 to 36639. [2023-12-20 02:54:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36639 states, 36638 states have (on average 1.431027894535728) internal successors, (52430), 36638 states have internal predecessors, (52430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36639 states to 36639 states and 52430 transitions. [2023-12-20 02:54:31,759 INFO L78 Accepts]: Start accepts. Automaton has 36639 states and 52430 transitions. Word has length 77 [2023-12-20 02:54:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:31,760 INFO L495 AbstractCegarLoop]: Abstraction has 36639 states and 52430 transitions. [2023-12-20 02:54:31,760 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) [2023-12-20 02:54:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 36639 states and 52430 transitions. [2023-12-20 02:54:31,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-20 02:54:31,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:31,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:31,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-20 02:54:31,763 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:31,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1188561083, now seen corresponding path program 1 times [2023-12-20 02:54:31,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:31,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961455594] [2023-12-20 02:54:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:31,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:31,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:31,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961455594] [2023-12-20 02:54:31,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961455594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:31,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:31,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:54:31,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541623662] [2023-12-20 02:54:31,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:31,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:54:31,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:31,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:54:31,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:54:31,816 INFO L87 Difference]: Start difference. First operand 36639 states and 52430 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:32,197 INFO L93 Difference]: Finished difference Result 104843 states and 150112 transitions. [2023-12-20 02:54:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:54:32,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2023-12-20 02:54:32,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:32,281 INFO L225 Difference]: With dead ends: 104843 [2023-12-20 02:54:32,282 INFO L226 Difference]: Without dead ends: 69287 [2023-12-20 02:54:32,322 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 [2023-12-20 02:54:32,323 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 407 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:32,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1564 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69287 states. [2023-12-20 02:54:33,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69287 to 65381. [2023-12-20 02:54:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65381 states, 65380 states have (on average 1.4227286631997553) internal successors, (93018), 65380 states have internal predecessors, (93018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65381 states to 65381 states and 93018 transitions. [2023-12-20 02:54:33,304 INFO L78 Accepts]: Start accepts. Automaton has 65381 states and 93018 transitions. Word has length 80 [2023-12-20 02:54:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:33,304 INFO L495 AbstractCegarLoop]: Abstraction has 65381 states and 93018 transitions. [2023-12-20 02:54:33,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:33,304 INFO L276 IsEmpty]: Start isEmpty. Operand 65381 states and 93018 transitions. [2023-12-20 02:54:33,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:54:33,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:33,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:33,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 02:54:33,307 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:33,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash -813868810, now seen corresponding path program 1 times [2023-12-20 02:54:33,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:33,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153018692] [2023-12-20 02:54:33,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:33,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:33,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153018692] [2023-12-20 02:54:33,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153018692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:33,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:33,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:33,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728443520] [2023-12-20 02:54:33,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:33,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:54:33,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:54:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:33,409 INFO L87 Difference]: Start difference. First operand 65381 states and 93018 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:33,879 INFO L93 Difference]: Finished difference Result 137400 states and 193112 transitions. [2023-12-20 02:54:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:54:33,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2023-12-20 02:54:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:34,179 INFO L225 Difference]: With dead ends: 137400 [2023-12-20 02:54:34,180 INFO L226 Difference]: Without dead ends: 137398 [2023-12-20 02:54:34,223 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 [2023-12-20 02:54:34,223 INFO L413 NwaCegarLoop]: 1061 mSDtfsCounter, 1015 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:34,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 4319 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:54:34,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137398 states. [2023-12-20 02:54:35,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137398 to 69581. [2023-12-20 02:54:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69581 states, 69580 states have (on average 1.3972118424834723) internal successors, (97218), 69580 states have internal predecessors, (97218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:35,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69581 states to 69581 states and 97218 transitions. [2023-12-20 02:54:35,466 INFO L78 Accepts]: Start accepts. Automaton has 69581 states and 97218 transitions. Word has length 81 [2023-12-20 02:54:35,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:35,466 INFO L495 AbstractCegarLoop]: Abstraction has 69581 states and 97218 transitions. [2023-12-20 02:54:35,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 69581 states and 97218 transitions. [2023-12-20 02:54:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-20 02:54:35,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:35,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:35,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 02:54:35,469 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:35,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:35,469 INFO L85 PathProgramCache]: Analyzing trace with hash 542491448, now seen corresponding path program 1 times [2023-12-20 02:54:35,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:35,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941181723] [2023-12-20 02:54:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:35,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:35,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:35,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941181723] [2023-12-20 02:54:35,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941181723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:35,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:35,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:54:35,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428240772] [2023-12-20 02:54:35,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:35,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:54:35,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:54:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:54:35,507 INFO L87 Difference]: Start difference. First operand 69581 states and 97218 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:36,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:36,227 INFO L93 Difference]: Finished difference Result 195205 states and 272830 transitions. [2023-12-20 02:54:36,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:54:36,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2023-12-20 02:54:36,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:36,388 INFO L225 Difference]: With dead ends: 195205 [2023-12-20 02:54:36,388 INFO L226 Difference]: Without dead ends: 126663 [2023-12-20 02:54:36,407 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 [2023-12-20 02:54:36,408 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 477 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:36,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1449 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:36,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126663 states. [2023-12-20 02:54:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126663 to 125261. [2023-12-20 02:54:37,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125261 states, 125260 states have (on average 1.3777023790515728) internal successors, (172571), 125260 states have internal predecessors, (172571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125261 states to 125261 states and 172571 transitions. [2023-12-20 02:54:37,992 INFO L78 Accepts]: Start accepts. Automaton has 125261 states and 172571 transitions. Word has length 82 [2023-12-20 02:54:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:37,993 INFO L495 AbstractCegarLoop]: Abstraction has 125261 states and 172571 transitions. [2023-12-20 02:54:37,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 125261 states and 172571 transitions. [2023-12-20 02:54:37,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:54:37,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:37,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:37,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 02:54:37,996 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:37,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:37,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1677678487, now seen corresponding path program 1 times [2023-12-20 02:54:37,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:37,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058035145] [2023-12-20 02:54:37,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:37,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:38,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:38,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058035145] [2023-12-20 02:54:38,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058035145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:38,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:38,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:38,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522911632] [2023-12-20 02:54:38,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:38,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:54:38,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:38,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:54:38,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:38,062 INFO L87 Difference]: Start difference. First operand 125261 states and 172571 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:39,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:39,069 INFO L93 Difference]: Finished difference Result 248256 states and 342649 transitions. [2023-12-20 02:54:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:54:39,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-20 02:54:39,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:39,381 INFO L225 Difference]: With dead ends: 248256 [2023-12-20 02:54:39,382 INFO L226 Difference]: Without dead ends: 210946 [2023-12-20 02:54:39,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:54:39,437 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 2850 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:39,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 2491 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:39,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210946 states. [2023-12-20 02:54:41,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210946 to 158733. [2023-12-20 02:54:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158733 states, 158732 states have (on average 1.3744109568329008) internal successors, (218163), 158732 states have internal predecessors, (218163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158733 states to 158733 states and 218163 transitions. [2023-12-20 02:54:41,784 INFO L78 Accepts]: Start accepts. Automaton has 158733 states and 218163 transitions. Word has length 84 [2023-12-20 02:54:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:41,784 INFO L495 AbstractCegarLoop]: Abstraction has 158733 states and 218163 transitions. [2023-12-20 02:54:41,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 158733 states and 218163 transitions. [2023-12-20 02:54:41,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-20 02:54:41,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:41,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:41,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-20 02:54:41,788 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:41,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:41,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1116201359, now seen corresponding path program 1 times [2023-12-20 02:54:41,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:41,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826172241] [2023-12-20 02:54:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:41,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826172241] [2023-12-20 02:54:41,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826172241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:41,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:41,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:54:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779126842] [2023-12-20 02:54:41,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:41,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:54:41,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:41,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:54:41,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:54:41,831 INFO L87 Difference]: Start difference. First operand 158733 states and 218163 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:42,492 INFO L93 Difference]: Finished difference Result 194449 states and 266493 transitions. [2023-12-20 02:54:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:54:42,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-20 02:54:42,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:42,642 INFO L225 Difference]: With dead ends: 194449 [2023-12-20 02:54:42,642 INFO L226 Difference]: Without dead ends: 123023 [2023-12-20 02:54:42,705 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 [2023-12-20 02:54:42,706 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 355 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:42,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1657 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:54:43,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123023 states. [2023-12-20 02:54:44,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123023 to 122277. [2023-12-20 02:54:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122277 states, 122276 states have (on average 1.3521786777454283) internal successors, (165339), 122276 states have internal predecessors, (165339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:44,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122277 states to 122277 states and 165339 transitions. [2023-12-20 02:54:44,333 INFO L78 Accepts]: Start accepts. Automaton has 122277 states and 165339 transitions. Word has length 87 [2023-12-20 02:54:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:44,333 INFO L495 AbstractCegarLoop]: Abstraction has 122277 states and 165339 transitions. [2023-12-20 02:54:44,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 122277 states and 165339 transitions. [2023-12-20 02:54:44,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-20 02:54:44,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:44,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:44,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 02:54:44,337 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:44,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:44,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1178562915, now seen corresponding path program 1 times [2023-12-20 02:54:44,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:44,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610704217] [2023-12-20 02:54:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:44,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:44,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:44,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610704217] [2023-12-20 02:54:44,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610704217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:44,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:44,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:44,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642938483] [2023-12-20 02:54:44,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:44,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:54:44,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:44,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:54:44,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:54:44,649 INFO L87 Difference]: Start difference. First operand 122277 states and 165339 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:46,320 INFO L93 Difference]: Finished difference Result 354404 states and 478840 transitions. [2023-12-20 02:54:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:54:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-20 02:54:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:46,730 INFO L225 Difference]: With dead ends: 354404 [2023-12-20 02:54:46,730 INFO L226 Difference]: Without dead ends: 296610 [2023-12-20 02:54:46,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:54:46,824 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4973 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4973 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:46,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4973 Valid, 1231 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:54:47,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296610 states. [2023-12-20 02:54:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296610 to 142805. [2023-12-20 02:54:49,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142805 states, 142804 states have (on average 1.343008599198902) internal successors, (191787), 142804 states have internal predecessors, (191787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:49,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142805 states to 142805 states and 191787 transitions. [2023-12-20 02:54:49,630 INFO L78 Accepts]: Start accepts. Automaton has 142805 states and 191787 transitions. Word has length 87 [2023-12-20 02:54:49,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:49,630 INFO L495 AbstractCegarLoop]: Abstraction has 142805 states and 191787 transitions. [2023-12-20 02:54:49,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:49,631 INFO L276 IsEmpty]: Start isEmpty. Operand 142805 states and 191787 transitions. [2023-12-20 02:54:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 02:54:49,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:49,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:49,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-20 02:54:49,635 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:49,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:49,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1033712559, now seen corresponding path program 1 times [2023-12-20 02:54:49,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:49,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346036908] [2023-12-20 02:54:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:49,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:49,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:49,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:49,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346036908] [2023-12-20 02:54:49,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346036908] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:49,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:49,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:49,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761075603] [2023-12-20 02:54:49,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:49,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:54:49,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:49,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:54:49,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:49,702 INFO L87 Difference]: Start difference. First operand 142805 states and 191787 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:50,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:50,554 INFO L93 Difference]: Finished difference Result 238488 states and 321549 transitions. [2023-12-20 02:54:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:54:50,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-20 02:54:50,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:50,829 INFO L225 Difference]: With dead ends: 238488 [2023-12-20 02:54:50,829 INFO L226 Difference]: Without dead ends: 204806 [2023-12-20 02:54:50,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:54:50,867 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 2801 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2801 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:50,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2801 Valid, 2511 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:50,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204806 states. [2023-12-20 02:54:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204806 to 170142. [2023-12-20 02:54:52,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170142 states, 170141 states have (on average 1.3408878518405323) internal successors, (228140), 170141 states have internal predecessors, (228140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170142 states to 170142 states and 228140 transitions. [2023-12-20 02:54:53,248 INFO L78 Accepts]: Start accepts. Automaton has 170142 states and 228140 transitions. Word has length 88 [2023-12-20 02:54:53,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:53,248 INFO L495 AbstractCegarLoop]: Abstraction has 170142 states and 228140 transitions. [2023-12-20 02:54:53,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:53,248 INFO L276 IsEmpty]: Start isEmpty. Operand 170142 states and 228140 transitions. [2023-12-20 02:54:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 02:54:53,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:53,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:53,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 02:54:53,252 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:53,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:53,252 INFO L85 PathProgramCache]: Analyzing trace with hash 695293308, now seen corresponding path program 1 times [2023-12-20 02:54:53,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:53,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642459525] [2023-12-20 02:54:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:53,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:53,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642459525] [2023-12-20 02:54:53,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642459525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:53,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:53,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:53,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5873160] [2023-12-20 02:54:53,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:53,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:54:53,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:53,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:54:53,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:53,322 INFO L87 Difference]: Start difference. First operand 170142 states and 228140 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:54,312 INFO L93 Difference]: Finished difference Result 245716 states and 330909 transitions. [2023-12-20 02:54:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:54:54,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-12-20 02:54:54,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:54,593 INFO L225 Difference]: With dead ends: 245716 [2023-12-20 02:54:54,593 INFO L226 Difference]: Without dead ends: 222246 [2023-12-20 02:54:54,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:54:54,639 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 2796 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:54,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2796 Valid, 2702 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222246 states. [2023-12-20 02:54:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222246 to 193218. [2023-12-20 02:54:56,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193218 states, 193217 states have (on average 1.34145546199351) internal successors, (259192), 193217 states have internal predecessors, (259192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193218 states to 193218 states and 259192 transitions. [2023-12-20 02:54:57,155 INFO L78 Accepts]: Start accepts. Automaton has 193218 states and 259192 transitions. Word has length 89 [2023-12-20 02:54:57,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:54:57,156 INFO L495 AbstractCegarLoop]: Abstraction has 193218 states and 259192 transitions. [2023-12-20 02:54:57,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:57,156 INFO L276 IsEmpty]: Start isEmpty. Operand 193218 states and 259192 transitions. [2023-12-20 02:54:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:54:57,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:54:57,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:54:57,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 02:54:57,161 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:54:57,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:54:57,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1272449462, now seen corresponding path program 1 times [2023-12-20 02:54:57,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:54:57,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929634773] [2023-12-20 02:54:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:54:57,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:54:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:54:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:54:57,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:54:57,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929634773] [2023-12-20 02:54:57,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929634773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:54:57,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:54:57,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:54:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503167576] [2023-12-20 02:54:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:54:57,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:54:57,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:54:57,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:54:57,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:54:57,533 INFO L87 Difference]: Start difference. First operand 193218 states and 259192 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:54:58,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:54:58,502 INFO L93 Difference]: Finished difference Result 268006 states and 360524 transitions. [2023-12-20 02:54:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:54:58,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 02:54:58,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:54:59,012 INFO L225 Difference]: With dead ends: 268006 [2023-12-20 02:54:59,013 INFO L226 Difference]: Without dead ends: 221464 [2023-12-20 02:54:59,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:54:59,087 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 2858 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:54:59,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 2527 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:54:59,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221464 states. [2023-12-20 02:55:01,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221464 to 192438. [2023-12-20 02:55:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192438 states, 192437 states have (on average 1.340137291685071) internal successors, (257892), 192437 states have internal predecessors, (257892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192438 states to 192438 states and 257892 transitions. [2023-12-20 02:55:01,949 INFO L78 Accepts]: Start accepts. Automaton has 192438 states and 257892 transitions. Word has length 93 [2023-12-20 02:55:01,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:01,950 INFO L495 AbstractCegarLoop]: Abstraction has 192438 states and 257892 transitions. [2023-12-20 02:55:01,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 192438 states and 257892 transitions. [2023-12-20 02:55:01,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:55:01,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:01,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:01,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 02:55:01,956 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:01,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash 745133160, now seen corresponding path program 1 times [2023-12-20 02:55:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025874439] [2023-12-20 02:55:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:01,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:02,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:02,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025874439] [2023-12-20 02:55:02,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025874439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:02,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:02,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:02,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203949953] [2023-12-20 02:55:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:02,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:55:02,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:02,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:55:02,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:55:02,063 INFO L87 Difference]: Start difference. First operand 192438 states and 257892 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:03,188 INFO L93 Difference]: Finished difference Result 297556 states and 400721 transitions. [2023-12-20 02:55:03,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:55:03,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 02:55:03,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:03,595 INFO L225 Difference]: With dead ends: 297556 [2023-12-20 02:55:03,595 INFO L226 Difference]: Without dead ends: 257634 [2023-12-20 02:55:03,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:55:03,668 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 2770 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:03,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2770 Valid, 2584 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:55:03,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257634 states. [2023-12-20 02:55:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257634 to 228606. [2023-12-20 02:55:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228606 states, 228605 states have (on average 1.3400056866647712) internal successors, (306332), 228605 states have internal predecessors, (306332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:06,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228606 states to 228606 states and 306332 transitions. [2023-12-20 02:55:06,863 INFO L78 Accepts]: Start accepts. Automaton has 228606 states and 306332 transitions. Word has length 93 [2023-12-20 02:55:06,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:06,864 INFO L495 AbstractCegarLoop]: Abstraction has 228606 states and 306332 transitions. [2023-12-20 02:55:06,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:06,864 INFO L276 IsEmpty]: Start isEmpty. Operand 228606 states and 306332 transitions. [2023-12-20 02:55:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 02:55:06,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:06,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:06,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-20 02:55:06,869 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:06,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:06,869 INFO L85 PathProgramCache]: Analyzing trace with hash -13442709, now seen corresponding path program 1 times [2023-12-20 02:55:06,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:06,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594382384] [2023-12-20 02:55:06,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:06,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:06,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:06,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594382384] [2023-12-20 02:55:06,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594382384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:06,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:06,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765611892] [2023-12-20 02:55:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:06,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:55:06,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:06,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:55:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:55:06,956 INFO L87 Difference]: Start difference. First operand 228606 states and 306332 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:07,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:07,992 INFO L93 Difference]: Finished difference Result 317522 states and 426168 transitions. [2023-12-20 02:55:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:55:07,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-20 02:55:07,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:08,353 INFO L225 Difference]: With dead ends: 317522 [2023-12-20 02:55:08,353 INFO L226 Difference]: Without dead ends: 256504 [2023-12-20 02:55:08,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:55:08,425 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 2807 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2807 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:08,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2807 Valid, 2711 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:55:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256504 states. [2023-12-20 02:55:10,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256504 to 227478. [2023-12-20 02:55:10,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227478 states, 227477 states have (on average 1.3383858587901194) internal successors, (304452), 227477 states have internal predecessors, (304452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227478 states to 227478 states and 304452 transitions. [2023-12-20 02:55:11,628 INFO L78 Accepts]: Start accepts. Automaton has 227478 states and 304452 transitions. Word has length 94 [2023-12-20 02:55:11,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:11,629 INFO L495 AbstractCegarLoop]: Abstraction has 227478 states and 304452 transitions. [2023-12-20 02:55:11,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 227478 states and 304452 transitions. [2023-12-20 02:55:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 02:55:11,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:11,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:11,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-20 02:55:11,634 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:11,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:11,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1142055644, now seen corresponding path program 1 times [2023-12-20 02:55:11,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:11,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276306410] [2023-12-20 02:55:11,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:11,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:11,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:11,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276306410] [2023-12-20 02:55:11,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276306410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:11,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:11,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:11,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159377320] [2023-12-20 02:55:11,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:11,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:55:11,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:11,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:55:11,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:11,703 INFO L87 Difference]: Start difference. First operand 227478 states and 304452 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:13,141 INFO L93 Difference]: Finished difference Result 267369 states and 357486 transitions. [2023-12-20 02:55:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:55:13,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-12-20 02:55:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:13,494 INFO L225 Difference]: With dead ends: 267369 [2023-12-20 02:55:13,495 INFO L226 Difference]: Without dead ends: 261659 [2023-12-20 02:55:13,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:55:13,566 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 4155 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:13,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 1180 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:55:14,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261659 states. [2023-12-20 02:55:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261659 to 227476. [2023-12-20 02:55:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227476 states, 227475 states have (on average 1.3383712495878668) internal successors, (304446), 227475 states have internal predecessors, (304446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227476 states to 227476 states and 304446 transitions. [2023-12-20 02:55:16,823 INFO L78 Accepts]: Start accepts. Automaton has 227476 states and 304446 transitions. Word has length 94 [2023-12-20 02:55:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:16,823 INFO L495 AbstractCegarLoop]: Abstraction has 227476 states and 304446 transitions. [2023-12-20 02:55:16,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 227476 states and 304446 transitions. [2023-12-20 02:55:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 02:55:16,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:16,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:16,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 02:55:16,829 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:16,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:16,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1818123850, now seen corresponding path program 1 times [2023-12-20 02:55:16,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:16,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365505595] [2023-12-20 02:55:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:16,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:16,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:16,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365505595] [2023-12-20 02:55:16,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365505595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:16,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:16,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:16,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692140835] [2023-12-20 02:55:16,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:16,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:55:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:16,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:55:16,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:16,899 INFO L87 Difference]: Start difference. First operand 227476 states and 304446 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:18,985 INFO L93 Difference]: Finished difference Result 435074 states and 579271 transitions. [2023-12-20 02:55:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:55:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-12-20 02:55:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:19,420 INFO L225 Difference]: With dead ends: 435074 [2023-12-20 02:55:19,421 INFO L226 Difference]: Without dead ends: 303576 [2023-12-20 02:55:19,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:55:19,521 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 4265 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4265 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:19,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4265 Valid, 1129 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:55:19,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303576 states. [2023-12-20 02:55:22,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303576 to 227476. [2023-12-20 02:55:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227476 states, 227475 states have (on average 1.3277151335311572) internal successors, (302022), 227475 states have internal predecessors, (302022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:23,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227476 states to 227476 states and 302022 transitions. [2023-12-20 02:55:23,612 INFO L78 Accepts]: Start accepts. Automaton has 227476 states and 302022 transitions. Word has length 95 [2023-12-20 02:55:23,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:23,612 INFO L495 AbstractCegarLoop]: Abstraction has 227476 states and 302022 transitions. [2023-12-20 02:55:23,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 227476 states and 302022 transitions. [2023-12-20 02:55:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 02:55:23,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:23,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:23,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 02:55:23,619 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:23,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:23,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1801493647, now seen corresponding path program 1 times [2023-12-20 02:55:23,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:23,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858484049] [2023-12-20 02:55:23,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:23,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:23,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:23,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858484049] [2023-12-20 02:55:23,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858484049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:23,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:23,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:23,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259560057] [2023-12-20 02:55:23,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:23,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:55:23,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:23,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:55:23,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:55:23,777 INFO L87 Difference]: Start difference. First operand 227476 states and 302022 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:24,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:24,965 INFO L93 Difference]: Finished difference Result 331272 states and 440954 transitions. [2023-12-20 02:55:24,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:55:24,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-20 02:55:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:25,394 INFO L225 Difference]: With dead ends: 331272 [2023-12-20 02:55:25,394 INFO L226 Difference]: Without dead ends: 255182 [2023-12-20 02:55:25,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:55:25,492 INFO L413 NwaCegarLoop]: 1092 mSDtfsCounter, 2718 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:25,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 2769 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:55:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255182 states. [2023-12-20 02:55:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255182 to 226156. [2023-12-20 02:55:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226156 states, 226155 states have (on average 1.3257367734518362) internal successors, (299822), 226155 states have internal predecessors, (299822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226156 states to 226156 states and 299822 transitions. [2023-12-20 02:55:28,832 INFO L78 Accepts]: Start accepts. Automaton has 226156 states and 299822 transitions. Word has length 96 [2023-12-20 02:55:28,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:28,832 INFO L495 AbstractCegarLoop]: Abstraction has 226156 states and 299822 transitions. [2023-12-20 02:55:28,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:28,832 INFO L276 IsEmpty]: Start isEmpty. Operand 226156 states and 299822 transitions. [2023-12-20 02:55:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 02:55:28,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:28,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:28,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-20 02:55:28,838 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:28,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:28,839 INFO L85 PathProgramCache]: Analyzing trace with hash 445223460, now seen corresponding path program 1 times [2023-12-20 02:55:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:28,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405631930] [2023-12-20 02:55:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:28,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:28,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:28,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405631930] [2023-12-20 02:55:28,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405631930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:28,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:28,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:28,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895477459] [2023-12-20 02:55:28,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:28,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:55:28,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:28,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:55:28,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:55:28,924 INFO L87 Difference]: Start difference. First operand 226156 states and 299822 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:29,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:29,927 INFO L93 Difference]: Finished difference Result 315072 states and 418850 transitions. [2023-12-20 02:55:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:55:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-20 02:55:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:30,289 INFO L225 Difference]: With dead ends: 315072 [2023-12-20 02:55:30,289 INFO L226 Difference]: Without dead ends: 254054 [2023-12-20 02:55:30,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:55:30,604 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 2793 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:30,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 2508 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:55:30,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254054 states. [2023-12-20 02:55:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254054 to 225028. [2023-12-20 02:55:32,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225028 states, 225027 states have (on average 1.3240277833326668) internal successors, (297942), 225027 states have internal predecessors, (297942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225028 states to 225028 states and 297942 transitions. [2023-12-20 02:55:33,532 INFO L78 Accepts]: Start accepts. Automaton has 225028 states and 297942 transitions. Word has length 96 [2023-12-20 02:55:33,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:33,532 INFO L495 AbstractCegarLoop]: Abstraction has 225028 states and 297942 transitions. [2023-12-20 02:55:33,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:33,533 INFO L276 IsEmpty]: Start isEmpty. Operand 225028 states and 297942 transitions. [2023-12-20 02:55:33,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:55:33,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:33,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:33,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 02:55:33,540 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:33,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash 161793450, now seen corresponding path program 1 times [2023-12-20 02:55:33,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:33,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515398378] [2023-12-20 02:55:33,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:33,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:33,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:33,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515398378] [2023-12-20 02:55:33,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515398378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:33,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:33,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:55:33,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442394169] [2023-12-20 02:55:33,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:33,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:55:33,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:33,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:55:33,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:55:33,610 INFO L87 Difference]: Start difference. First operand 225028 states and 297942 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:35,075 INFO L93 Difference]: Finished difference Result 264903 states and 350792 transitions. [2023-12-20 02:55:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:55:35,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 02:55:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:35,424 INFO L225 Difference]: With dead ends: 264903 [2023-12-20 02:55:35,424 INFO L226 Difference]: Without dead ends: 259193 [2023-12-20 02:55:35,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:55:35,503 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 4091 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:35,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 1209 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:55:35,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259193 states. [2023-12-20 02:55:37,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259193 to 225026. [2023-12-20 02:55:38,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225026 states, 225025 states have (on average 1.3240128874569492) internal successors, (297936), 225025 states have internal predecessors, (297936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:38,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225026 states to 225026 states and 297936 transitions. [2023-12-20 02:55:38,693 INFO L78 Accepts]: Start accepts. Automaton has 225026 states and 297936 transitions. Word has length 97 [2023-12-20 02:55:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:38,693 INFO L495 AbstractCegarLoop]: Abstraction has 225026 states and 297936 transitions. [2023-12-20 02:55:38,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 225026 states and 297936 transitions. [2023-12-20 02:55:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:55:38,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:38,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:38,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 02:55:38,701 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:38,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash -169124036, now seen corresponding path program 1 times [2023-12-20 02:55:38,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:38,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678188123] [2023-12-20 02:55:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:38,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:38,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:38,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678188123] [2023-12-20 02:55:38,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678188123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:38,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:38,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:55:38,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183880356] [2023-12-20 02:55:38,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:38,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:55:38,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:38,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:55:38,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:55:38,737 INFO L87 Difference]: Start difference. First operand 225026 states and 297936 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:39,692 INFO L93 Difference]: Finished difference Result 302406 states and 399578 transitions. [2023-12-20 02:55:39,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:55:39,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 02:55:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:39,881 INFO L225 Difference]: With dead ends: 302406 [2023-12-20 02:55:39,881 INFO L226 Difference]: Without dead ends: 147642 [2023-12-20 02:55:39,967 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 [2023-12-20 02:55:39,967 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 375 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:39,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1567 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:55:40,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147642 states. [2023-12-20 02:55:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147642 to 123079. [2023-12-20 02:55:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123079 states, 123078 states have (on average 1.3080891792196818) internal successors, (160997), 123078 states have internal predecessors, (160997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123079 states to 123079 states and 160997 transitions. [2023-12-20 02:55:41,959 INFO L78 Accepts]: Start accepts. Automaton has 123079 states and 160997 transitions. Word has length 97 [2023-12-20 02:55:41,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:41,959 INFO L495 AbstractCegarLoop]: Abstraction has 123079 states and 160997 transitions. [2023-12-20 02:55:41,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 123079 states and 160997 transitions. [2023-12-20 02:55:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:55:41,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:41,972 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, 1, 1, 1, 1] [2023-12-20 02:55:41,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-20 02:55:41,973 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:41,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:41,973 INFO L85 PathProgramCache]: Analyzing trace with hash 522234203, now seen corresponding path program 1 times [2023-12-20 02:55:41,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:41,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496984222] [2023-12-20 02:55:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:41,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:42,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:42,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496984222] [2023-12-20 02:55:42,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496984222] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:55:42,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343231727] [2023-12-20 02:55:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:42,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:55:42,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:55:42,244 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) [2023-12-20 02:55:42,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 02:55:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:42,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 02:55:42,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:55:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:43,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:55:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:44,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343231727] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:55:44,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:55:44,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2023-12-20 02:55:44,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203731970] [2023-12-20 02:55:44,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:55:44,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:55:44,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:44,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:55:44,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:55:44,153 INFO L87 Difference]: Start difference. First operand 123079 states and 160997 transitions. Second operand has 23 states, 23 states have (on average 11.782608695652174) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:47,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:47,563 INFO L93 Difference]: Finished difference Result 355974 states and 459371 transitions. [2023-12-20 02:55:47,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-20 02:55:47,563 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.782608695652174) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 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 107 [2023-12-20 02:55:47,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:48,025 INFO L225 Difference]: With dead ends: 355974 [2023-12-20 02:55:48,026 INFO L226 Difference]: Without dead ends: 315940 [2023-12-20 02:55:48,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=967, Invalid=2815, Unknown=0, NotChecked=0, Total=3782 [2023-12-20 02:55:48,111 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 10073 mSDsluCounter, 4205 mSDsCounter, 0 mSdLazyCounter, 4474 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10073 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 4510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:48,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10073 Valid, 4865 Invalid, 4510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4474 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 02:55:48,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315940 states. [2023-12-20 02:55:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315940 to 178829. [2023-12-20 02:55:50,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178829 states, 178828 states have (on average 1.3045608070324557) internal successors, (233292), 178828 states have internal predecessors, (233292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178829 states to 178829 states and 233292 transitions. [2023-12-20 02:55:50,824 INFO L78 Accepts]: Start accepts. Automaton has 178829 states and 233292 transitions. Word has length 107 [2023-12-20 02:55:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:50,824 INFO L495 AbstractCegarLoop]: Abstraction has 178829 states and 233292 transitions. [2023-12-20 02:55:50,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.782608695652174) internal successors, (271), 22 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 178829 states and 233292 transitions. [2023-12-20 02:55:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:55:50,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:50,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:50,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 02:55:51,048 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,SelfDestructingSolverStorable58 [2023-12-20 02:55:51,048 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:51,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:51,049 INFO L85 PathProgramCache]: Analyzing trace with hash -783461658, now seen corresponding path program 1 times [2023-12-20 02:55:51,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:51,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810096643] [2023-12-20 02:55:51,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:51,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:55:51,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:51,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810096643] [2023-12-20 02:55:51,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810096643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:51,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:51,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:55:51,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631086798] [2023-12-20 02:55:51,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:51,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:55:51,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:51,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:55:51,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:55:51,103 INFO L87 Difference]: Start difference. First operand 178829 states and 233292 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:52,437 INFO L93 Difference]: Finished difference Result 356512 states and 465289 transitions. [2023-12-20 02:55:52,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:55:52,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2023-12-20 02:55:52,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:52,683 INFO L225 Difference]: With dead ends: 356512 [2023-12-20 02:55:52,683 INFO L226 Difference]: Without dead ends: 178831 [2023-12-20 02:55:52,760 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 [2023-12-20 02:55:52,761 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 444 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:52,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1501 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:55:52,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178831 states. [2023-12-20 02:55:54,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178831 to 177133. [2023-12-20 02:55:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177133 states, 177132 states have (on average 1.291940473770973) internal successors, (228844), 177132 states have internal predecessors, (228844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177133 states to 177133 states and 228844 transitions. [2023-12-20 02:55:54,779 INFO L78 Accepts]: Start accepts. Automaton has 177133 states and 228844 transitions. Word has length 108 [2023-12-20 02:55:54,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:54,779 INFO L495 AbstractCegarLoop]: Abstraction has 177133 states and 228844 transitions. [2023-12-20 02:55:54,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand 177133 states and 228844 transitions. [2023-12-20 02:55:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:55:54,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:54,802 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, 1, 1, 1, 1, 1] [2023-12-20 02:55:54,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-20 02:55:54,802 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:54,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:54,803 INFO L85 PathProgramCache]: Analyzing trace with hash -248925345, now seen corresponding path program 1 times [2023-12-20 02:55:54,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:54,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447366207] [2023-12-20 02:55:54,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:54,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:55:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-20 02:55:54,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:55:54,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447366207] [2023-12-20 02:55:54,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447366207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:55:54,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:55:54,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:55:54,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018597467] [2023-12-20 02:55:54,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:55:54,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:55:54,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:55:54,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:55:54,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:55:54,954 INFO L87 Difference]: Start difference. First operand 177133 states and 228844 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:57,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:55:57,062 INFO L93 Difference]: Finished difference Result 272467 states and 350725 transitions. [2023-12-20 02:55:57,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:55:57,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-20 02:55:57,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:55:57,432 INFO L225 Difference]: With dead ends: 272467 [2023-12-20 02:55:57,432 INFO L226 Difference]: Without dead ends: 254735 [2023-12-20 02:55:57,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:55:57,491 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 3291 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3291 SdHoareTripleChecker+Valid, 2650 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:55:57,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3291 Valid, 2650 Invalid, 2473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:55:57,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254735 states. [2023-12-20 02:55:59,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254735 to 177123. [2023-12-20 02:55:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177123 states, 177122 states have (on average 1.2919513103962241) internal successors, (228833), 177122 states have internal predecessors, (228833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177123 states to 177123 states and 228833 transitions. [2023-12-20 02:55:59,633 INFO L78 Accepts]: Start accepts. Automaton has 177123 states and 228833 transitions. Word has length 108 [2023-12-20 02:55:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:55:59,633 INFO L495 AbstractCegarLoop]: Abstraction has 177123 states and 228833 transitions. [2023-12-20 02:55:59,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:55:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 177123 states and 228833 transitions. [2023-12-20 02:55:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 02:55:59,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:55:59,655 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, 1, 1, 1, 1, 1, 1] [2023-12-20 02:55:59,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-20 02:55:59,655 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:55:59,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:55:59,655 INFO L85 PathProgramCache]: Analyzing trace with hash 696752016, now seen corresponding path program 1 times [2023-12-20 02:55:59,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:55:59,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821318298] [2023-12-20 02:55:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:55:59,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:55:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-20 02:56:00,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:00,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821318298] [2023-12-20 02:56:00,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821318298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:00,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:00,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:56:00,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083589304] [2023-12-20 02:56:00,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:00,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:56:00,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:56:00,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:56:00,114 INFO L87 Difference]: Start difference. First operand 177123 states and 228833 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:01,963 INFO L93 Difference]: Finished difference Result 331199 states and 424898 transitions. [2023-12-20 02:56:01,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:56:01,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-20 02:56:01,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:02,380 INFO L225 Difference]: With dead ends: 331199 [2023-12-20 02:56:02,380 INFO L226 Difference]: Without dead ends: 313597 [2023-12-20 02:56:02,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:56:02,469 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 3079 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3079 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:02,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3079 Valid, 2552 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:56:02,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313597 states. [2023-12-20 02:56:04,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313597 to 177107. [2023-12-20 02:56:04,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177107 states, 177106 states have (on average 1.29197203934367) internal successors, (228816), 177106 states have internal predecessors, (228816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177107 states to 177107 states and 228816 transitions. [2023-12-20 02:56:05,056 INFO L78 Accepts]: Start accepts. Automaton has 177107 states and 228816 transitions. Word has length 109 [2023-12-20 02:56:05,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:05,056 INFO L495 AbstractCegarLoop]: Abstraction has 177107 states and 228816 transitions. [2023-12-20 02:56:05,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 177107 states and 228816 transitions. [2023-12-20 02:56:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 02:56:05,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:05,078 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, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:05,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-20 02:56:05,078 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:56:05,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:05,079 INFO L85 PathProgramCache]: Analyzing trace with hash 937602903, now seen corresponding path program 1 times [2023-12-20 02:56:05,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:05,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829357292] [2023-12-20 02:56:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:05,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:05,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:05,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829357292] [2023-12-20 02:56:05,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829357292] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:56:05,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103785951] [2023-12-20 02:56:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:05,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:56:05,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:56:05,484 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) [2023-12-20 02:56:05,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 02:56:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:05,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-20 02:56:05,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:56:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:05,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:56:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:06,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103785951] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:56:06,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:56:06,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 8] total 14 [2023-12-20 02:56:06,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599948150] [2023-12-20 02:56:06,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:56:06,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:56:06,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:06,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:56:06,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:56:06,181 INFO L87 Difference]: Start difference. First operand 177107 states and 228816 transitions. Second operand has 14 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:09,737 INFO L93 Difference]: Finished difference Result 1061997 states and 1375138 transitions. [2023-12-20 02:56:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:56:09,738 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 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 109 [2023-12-20 02:56:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:12,144 INFO L225 Difference]: With dead ends: 1061997 [2023-12-20 02:56:12,145 INFO L226 Difference]: Without dead ends: 886012 [2023-12-20 02:56:12,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:56:12,292 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 3675 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:12,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3675 Valid, 5631 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:56:12,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886012 states. [2023-12-20 02:56:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886012 to 721286. [2023-12-20 02:56:20,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721286 states, 721285 states have (on average 1.285580595742321) internal successors, (927270), 721285 states have internal predecessors, (927270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721286 states to 721286 states and 927270 transitions. [2023-12-20 02:56:22,770 INFO L78 Accepts]: Start accepts. Automaton has 721286 states and 927270 transitions. Word has length 109 [2023-12-20 02:56:22,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:22,770 INFO L495 AbstractCegarLoop]: Abstraction has 721286 states and 927270 transitions. [2023-12-20 02:56:22,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:22,770 INFO L276 IsEmpty]: Start isEmpty. Operand 721286 states and 927270 transitions. [2023-12-20 02:56:22,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:56:22,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:22,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:22,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 02:56:22,996 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,SelfDestructingSolverStorable62 [2023-12-20 02:56:22,998 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:56:22,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1688769243, now seen corresponding path program 1 times [2023-12-20 02:56:22,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:22,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925308175] [2023-12-20 02:56:22,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:22,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:56:23,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:23,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925308175] [2023-12-20 02:56:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925308175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:56:23,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:56:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:56:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368723076] [2023-12-20 02:56:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:56:23,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:56:23,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:56:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:56:23,042 INFO L87 Difference]: Start difference. First operand 721286 states and 927270 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:26,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:26,119 INFO L93 Difference]: Finished difference Result 928753 states and 1192460 transitions. [2023-12-20 02:56:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:56:26,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 110 [2023-12-20 02:56:26,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:27,267 INFO L225 Difference]: With dead ends: 928753 [2023-12-20 02:56:27,267 INFO L226 Difference]: Without dead ends: 491904 [2023-12-20 02:56:27,447 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 [2023-12-20 02:56:27,447 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 341 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:27,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1569 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:56:27,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491904 states. [2023-12-20 02:56:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491904 to 483699. [2023-12-20 02:56:32,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483699 states, 483698 states have (on average 1.2742268936402465) internal successors, (616341), 483698 states have internal predecessors, (616341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483699 states to 483699 states and 616341 transitions. [2023-12-20 02:56:34,367 INFO L78 Accepts]: Start accepts. Automaton has 483699 states and 616341 transitions. Word has length 110 [2023-12-20 02:56:34,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:56:34,373 INFO L495 AbstractCegarLoop]: Abstraction has 483699 states and 616341 transitions. [2023-12-20 02:56:34,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:34,373 INFO L276 IsEmpty]: Start isEmpty. Operand 483699 states and 616341 transitions. [2023-12-20 02:56:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-20 02:56:34,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:56:34,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:56:34,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-20 02:56:34,399 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:56:34,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:56:34,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1126922839, now seen corresponding path program 1 times [2023-12-20 02:56:34,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:56:34,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341347395] [2023-12-20 02:56:34,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:34,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:56:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:34,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:56:34,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341347395] [2023-12-20 02:56:34,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341347395] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:56:34,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588792370] [2023-12-20 02:56:34,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:56:34,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:56:34,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:56:34,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:56:34,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 02:56:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:56:34,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:56:34,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:56:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:35,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:56:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:56:35,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588792370] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:56:35,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:56:35,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-20 02:56:35,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195207327] [2023-12-20 02:56:35,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:56:35,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:56:35,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:56:35,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:56:35,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:56:35,214 INFO L87 Difference]: Start difference. First operand 483699 states and 616341 transitions. Second operand has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:56:43,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:56:43,111 INFO L93 Difference]: Finished difference Result 1824585 states and 2320785 transitions. [2023-12-20 02:56:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:56:43,111 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 0 states have call successors, (0), 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 112 [2023-12-20 02:56:43,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:56:47,429 INFO L225 Difference]: With dead ends: 1824585 [2023-12-20 02:56:47,429 INFO L226 Difference]: Without dead ends: 1342245 [2023-12-20 02:56:47,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 215 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:56:47,748 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 7819 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7819 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:56:47,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7819 Valid, 2545 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:56:49,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342245 states. [2023-12-20 02:56:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342245 to 707418. [2023-12-20 02:56:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707418 states, 707417 states have (on average 1.2613903821932466) internal successors, (892329), 707417 states have internal predecessors, (892329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:01,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707418 states to 707418 states and 892329 transitions. [2023-12-20 02:57:01,179 INFO L78 Accepts]: Start accepts. Automaton has 707418 states and 892329 transitions. Word has length 112 [2023-12-20 02:57:01,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:01,179 INFO L495 AbstractCegarLoop]: Abstraction has 707418 states and 892329 transitions. [2023-12-20 02:57:01,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand 707418 states and 892329 transitions. [2023-12-20 02:57:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-20 02:57:01,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:01,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:01,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 02:57:01,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:57:01,416 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:57:01,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1951041572, now seen corresponding path program 1 times [2023-12-20 02:57:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:01,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817510555] [2023-12-20 02:57:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:01,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 02:57:01,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:01,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817510555] [2023-12-20 02:57:01,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817510555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:01,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:01,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:57:01,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755006607] [2023-12-20 02:57:01,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:01,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:57:01,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:01,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:57:01,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:57:01,470 INFO L87 Difference]: Start difference. First operand 707418 states and 892329 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:05,345 INFO L93 Difference]: Finished difference Result 1047462 states and 1317975 transitions. [2023-12-20 02:57:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:57:05,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 116 [2023-12-20 02:57:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:06,759 INFO L225 Difference]: With dead ends: 1047462 [2023-12-20 02:57:06,759 INFO L226 Difference]: Without dead ends: 534263 [2023-12-20 02:57:07,399 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 [2023-12-20 02:57:07,413 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 395 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:07,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1516 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:57:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534263 states. [2023-12-20 02:57:12,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534263 to 533619. [2023-12-20 02:57:12,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533619 states, 533618 states have (on average 1.2523734206867085) internal successors, (668289), 533618 states have internal predecessors, (668289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533619 states to 533619 states and 668289 transitions. [2023-12-20 02:57:13,975 INFO L78 Accepts]: Start accepts. Automaton has 533619 states and 668289 transitions. Word has length 116 [2023-12-20 02:57:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:13,975 INFO L495 AbstractCegarLoop]: Abstraction has 533619 states and 668289 transitions. [2023-12-20 02:57:13,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 533619 states and 668289 transitions. [2023-12-20 02:57:13,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-20 02:57:13,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:13,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:13,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-20 02:57:13,999 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:57:13,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:13,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1471887711, now seen corresponding path program 1 times [2023-12-20 02:57:13,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:13,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653770895] [2023-12-20 02:57:13,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:14,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:57:14,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653770895] [2023-12-20 02:57:14,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653770895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:14,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:14,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:57:14,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822189377] [2023-12-20 02:57:14,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:14,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:57:14,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:57:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:57:14,089 INFO L87 Difference]: Start difference. First operand 533619 states and 668289 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:17,473 INFO L93 Difference]: Finished difference Result 813497 states and 1014510 transitions. [2023-12-20 02:57:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 02:57:17,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 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 117 [2023-12-20 02:57:17,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:18,684 INFO L225 Difference]: With dead ends: 813497 [2023-12-20 02:57:18,684 INFO L226 Difference]: Without dead ends: 785132 [2023-12-20 02:57:19,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:57:19,193 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 4055 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:19,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4055 Valid, 1185 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:57:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785132 states. [2023-12-20 02:57:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785132 to 528046. [2023-12-20 02:57:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528046 states, 528045 states have (on average 1.2528913255499057) internal successors, (661583), 528045 states have internal predecessors, (661583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528046 states to 528046 states and 661583 transitions. [2023-12-20 02:57:27,636 INFO L78 Accepts]: Start accepts. Automaton has 528046 states and 661583 transitions. Word has length 117 [2023-12-20 02:57:27,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:27,636 INFO L495 AbstractCegarLoop]: Abstraction has 528046 states and 661583 transitions. [2023-12-20 02:57:27,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:27,637 INFO L276 IsEmpty]: Start isEmpty. Operand 528046 states and 661583 transitions. [2023-12-20 02:57:27,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-20 02:57:27,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:27,669 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:27,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-20 02:57:27,670 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:57:27,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:27,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1211371268, now seen corresponding path program 1 times [2023-12-20 02:57:27,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:27,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271832182] [2023-12-20 02:57:27,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:27,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:27,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:27,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271832182] [2023-12-20 02:57:27,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271832182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:27,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:27,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:57:27,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129552642] [2023-12-20 02:57:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:27,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:57:27,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:27,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:57:27,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:57:27,727 INFO L87 Difference]: Start difference. First operand 528046 states and 661583 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:31,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:31,045 INFO L93 Difference]: Finished difference Result 1011915 states and 1264864 transitions. [2023-12-20 02:57:31,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:57:31,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2023-12-20 02:57:31,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:31,854 INFO L225 Difference]: With dead ends: 1011915 [2023-12-20 02:57:31,854 INFO L226 Difference]: Without dead ends: 485242 [2023-12-20 02:57:32,370 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 [2023-12-20 02:57:32,371 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 322 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:32,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1535 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:57:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485242 states. [2023-12-20 02:57:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485242 to 470475. [2023-12-20 02:57:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470475 states, 470474 states have (on average 1.231978812856821) internal successors, (579614), 470474 states have internal predecessors, (579614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:39,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470475 states to 470475 states and 579614 transitions. [2023-12-20 02:57:39,042 INFO L78 Accepts]: Start accepts. Automaton has 470475 states and 579614 transitions. Word has length 120 [2023-12-20 02:57:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:39,043 INFO L495 AbstractCegarLoop]: Abstraction has 470475 states and 579614 transitions. [2023-12-20 02:57:39,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 470475 states and 579614 transitions. [2023-12-20 02:57:39,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 02:57:39,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:39,077 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:39,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-20 02:57:39,077 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:57:39,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:39,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1449847867, now seen corresponding path program 1 times [2023-12-20 02:57:39,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:39,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469107579] [2023-12-20 02:57:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:39,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:39,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:39,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469107579] [2023-12-20 02:57:39,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469107579] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:57:39,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857655625] [2023-12-20 02:57:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:39,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:57:39,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:57:39,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:57:39,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 02:57:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:39,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:57:39,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:57:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:39,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:57:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:57:40,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857655625] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:57:40,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:57:40,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-20 02:57:40,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028601684] [2023-12-20 02:57:40,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:57:40,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:57:40,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:40,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:57:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:57:40,050 INFO L87 Difference]: Start difference. First operand 470475 states and 579614 transitions. Second operand has 14 states, 14 states have (on average 23.714285714285715) internal successors, (332), 14 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:44,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:44,551 INFO L93 Difference]: Finished difference Result 1032466 states and 1270797 transitions. [2023-12-20 02:57:44,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:57:44,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 23.714285714285715) internal successors, (332), 14 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2023-12-20 02:57:44,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:45,476 INFO L225 Difference]: With dead ends: 1032466 [2023-12-20 02:57:45,477 INFO L226 Difference]: Without dead ends: 569332 [2023-12-20 02:57:45,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:57:45,982 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 5744 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:45,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5744 Valid, 2547 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:57:46,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569332 states. [2023-12-20 02:57:50,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569332 to 418770. [2023-12-20 02:57:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418770 states, 418769 states have (on average 1.2102065816715182) internal successors, (506797), 418769 states have internal predecessors, (506797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418770 states to 418770 states and 506797 transitions. [2023-12-20 02:57:52,131 INFO L78 Accepts]: Start accepts. Automaton has 418770 states and 506797 transitions. Word has length 121 [2023-12-20 02:57:52,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:57:52,131 INFO L495 AbstractCegarLoop]: Abstraction has 418770 states and 506797 transitions. [2023-12-20 02:57:52,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.714285714285715) internal successors, (332), 14 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 418770 states and 506797 transitions. [2023-12-20 02:57:52,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-20 02:57:52,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:57:52,149 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:57:52,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 02:57:52,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:57:52,357 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:57:52,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:57:52,357 INFO L85 PathProgramCache]: Analyzing trace with hash 29484625, now seen corresponding path program 1 times [2023-12-20 02:57:52,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:57:52,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286370680] [2023-12-20 02:57:52,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:57:52,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:57:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:57:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 02:57:52,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:57:52,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286370680] [2023-12-20 02:57:52,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286370680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:57:52,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:57:52,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:57:52,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340708131] [2023-12-20 02:57:52,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:57:52,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:57:52,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:57:52,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:57:52,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:57:52,452 INFO L87 Difference]: Start difference. First operand 418770 states and 506797 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:57:55,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:57:55,869 INFO L93 Difference]: Finished difference Result 955128 states and 1152170 transitions. [2023-12-20 02:57:55,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:57:55,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-20 02:57:55,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:57:56,872 INFO L225 Difference]: With dead ends: 955128 [2023-12-20 02:57:56,872 INFO L226 Difference]: Without dead ends: 550730 [2023-12-20 02:57:57,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:57:57,006 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 534 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:57:57,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1343 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:57:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550730 states. [2023-12-20 02:58:01,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550730 to 525988. [2023-12-20 02:58:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525988 states, 525987 states have (on average 1.193432537306055) internal successors, (627730), 525987 states have internal predecessors, (627730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525988 states to 525988 states and 627730 transitions. [2023-12-20 02:58:04,650 INFO L78 Accepts]: Start accepts. Automaton has 525988 states and 627730 transitions. Word has length 122 [2023-12-20 02:58:04,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:04,650 INFO L495 AbstractCegarLoop]: Abstraction has 525988 states and 627730 transitions. [2023-12-20 02:58:04,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 525988 states and 627730 transitions. [2023-12-20 02:58:04,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-20 02:58:04,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:04,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:04,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-20 02:58:04,671 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:58:04,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:04,671 INFO L85 PathProgramCache]: Analyzing trace with hash 330802563, now seen corresponding path program 1 times [2023-12-20 02:58:04,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:04,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293196862] [2023-12-20 02:58:04,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:04,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:58:04,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:04,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293196862] [2023-12-20 02:58:04,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293196862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:04,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:04,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:58:04,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406574517] [2023-12-20 02:58:04,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:04,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:58:04,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:04,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:58:04,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:58:04,928 INFO L87 Difference]: Start difference. First operand 525988 states and 627730 transitions. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:12,099 INFO L93 Difference]: Finished difference Result 1860376 states and 2215049 transitions. [2023-12-20 02:58:12,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 02:58:12,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-20 02:58:12,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:15,314 INFO L225 Difference]: With dead ends: 1860376 [2023-12-20 02:58:15,314 INFO L226 Difference]: Without dead ends: 1596770 [2023-12-20 02:58:15,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:58:15,649 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 3628 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 2887 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:15,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3628 Valid, 3148 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2887 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:58:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596770 states. [2023-12-20 02:58:28,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596770 to 831382. [2023-12-20 02:58:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831382 states, 831381 states have (on average 1.1907488864912716) internal successors, (989966), 831381 states have internal predecessors, (989966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:31,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831382 states to 831382 states and 989966 transitions. [2023-12-20 02:58:31,835 INFO L78 Accepts]: Start accepts. Automaton has 831382 states and 989966 transitions. Word has length 122 [2023-12-20 02:58:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:31,835 INFO L495 AbstractCegarLoop]: Abstraction has 831382 states and 989966 transitions. [2023-12-20 02:58:31,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:31,836 INFO L276 IsEmpty]: Start isEmpty. Operand 831382 states and 989966 transitions. [2023-12-20 02:58:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-20 02:58:31,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:31,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:31,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-20 02:58:31,852 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:58:31,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash -744276918, now seen corresponding path program 1 times [2023-12-20 02:58:31,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:31,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934250352] [2023-12-20 02:58:31,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:31,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 02:58:32,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:32,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934250352] [2023-12-20 02:58:32,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934250352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:32,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:32,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:32,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465740716] [2023-12-20 02:58:32,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:32,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:32,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:32,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:32,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:32,395 INFO L87 Difference]: Start difference. First operand 831382 states and 989966 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:36,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:36,678 INFO L93 Difference]: Finished difference Result 1172074 states and 1398864 transitions. [2023-12-20 02:58:36,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:36,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-20 02:58:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:38,022 INFO L225 Difference]: With dead ends: 1172074 [2023-12-20 02:58:38,022 INFO L226 Difference]: Without dead ends: 437371 [2023-12-20 02:58:38,301 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 [2023-12-20 02:58:38,301 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 516 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:38,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1231 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:58:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437371 states. [2023-12-20 02:58:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437371 to 437369. [2023-12-20 02:58:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437369 states, 437368 states have (on average 1.1795650344789743) internal successors, (515904), 437368 states have internal predecessors, (515904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:46,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437369 states to 437369 states and 515904 transitions. [2023-12-20 02:58:46,106 INFO L78 Accepts]: Start accepts. Automaton has 437369 states and 515904 transitions. Word has length 123 [2023-12-20 02:58:46,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:46,106 INFO L495 AbstractCegarLoop]: Abstraction has 437369 states and 515904 transitions. [2023-12-20 02:58:46,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:46,106 INFO L276 IsEmpty]: Start isEmpty. Operand 437369 states and 515904 transitions. [2023-12-20 02:58:46,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-20 02:58:46,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:46,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:46,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-20 02:58:46,118 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:58:46,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:46,118 INFO L85 PathProgramCache]: Analyzing trace with hash -105084841, now seen corresponding path program 1 times [2023-12-20 02:58:46,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:46,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052090242] [2023-12-20 02:58:46,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:46,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-20 02:58:46,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:46,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052090242] [2023-12-20 02:58:46,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052090242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:46,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:46,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:58:46,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123059331] [2023-12-20 02:58:46,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:46,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:58:46,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:46,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:58:46,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:58:46,186 INFO L87 Difference]: Start difference. First operand 437369 states and 515904 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:49,256 INFO L93 Difference]: Finished difference Result 833925 states and 986193 transitions. [2023-12-20 02:58:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:58:49,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-20 02:58:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:58:50,638 INFO L225 Difference]: With dead ends: 833925 [2023-12-20 02:58:50,638 INFO L226 Difference]: Without dead ends: 405972 [2023-12-20 02:58:50,763 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 [2023-12-20 02:58:50,765 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 774 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:58:50,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 488 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:58:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405972 states. [2023-12-20 02:58:54,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405972 to 405908. [2023-12-20 02:58:55,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405908 states, 405907 states have (on average 1.173670323497747) internal successors, (476401), 405907 states have internal predecessors, (476401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405908 states to 405908 states and 476401 transitions. [2023-12-20 02:58:56,467 INFO L78 Accepts]: Start accepts. Automaton has 405908 states and 476401 transitions. Word has length 123 [2023-12-20 02:58:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:58:56,467 INFO L495 AbstractCegarLoop]: Abstraction has 405908 states and 476401 transitions. [2023-12-20 02:58:56,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 405908 states and 476401 transitions. [2023-12-20 02:58:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-20 02:58:56,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:58:56,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:58:56,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-20 02:58:56,478 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:58:56,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:58:56,479 INFO L85 PathProgramCache]: Analyzing trace with hash 707795424, now seen corresponding path program 1 times [2023-12-20 02:58:56,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:58:56,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249734832] [2023-12-20 02:58:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:58:56,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:58:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:58:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:58:56,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:58:56,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249734832] [2023-12-20 02:58:56,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249734832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:58:56,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:58:56,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:58:56,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317635390] [2023-12-20 02:58:56,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:58:56,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:58:56,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:58:56,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:58:56,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:58:56,682 INFO L87 Difference]: Start difference. First operand 405908 states and 476401 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:58:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:58:59,212 INFO L93 Difference]: Finished difference Result 591354 states and 692331 transitions. [2023-12-20 02:58:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 02:58:59,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2023-12-20 02:58:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:00,310 INFO L225 Difference]: With dead ends: 591354 [2023-12-20 02:59:00,310 INFO L226 Difference]: Without dead ends: 566055 [2023-12-20 02:59:00,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:59:00,403 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 2812 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:00,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2812 Valid, 2314 Invalid, 2301 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:59:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566055 states. [2023-12-20 02:59:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566055 to 405908. [2023-12-20 02:59:05,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405908 states, 405907 states have (on average 1.1736678598792334) internal successors, (476400), 405907 states have internal predecessors, (476400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405908 states to 405908 states and 476400 transitions. [2023-12-20 02:59:06,093 INFO L78 Accepts]: Start accepts. Automaton has 405908 states and 476400 transitions. Word has length 123 [2023-12-20 02:59:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:06,093 INFO L495 AbstractCegarLoop]: Abstraction has 405908 states and 476400 transitions. [2023-12-20 02:59:06,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 405908 states and 476400 transitions. [2023-12-20 02:59:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-20 02:59:06,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:06,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:06,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-12-20 02:59:06,103 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:59:06,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:06,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1285168647, now seen corresponding path program 1 times [2023-12-20 02:59:06,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:06,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207377687] [2023-12-20 02:59:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:06,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 02:59:06,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:06,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207377687] [2023-12-20 02:59:06,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207377687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:06,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:06,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:59:06,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435363793] [2023-12-20 02:59:06,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:06,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:59:06,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:06,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:59:06,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:59:06,648 INFO L87 Difference]: Start difference. First operand 405908 states and 476400 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:09,691 INFO L93 Difference]: Finished difference Result 631376 states and 739994 transitions. [2023-12-20 02:59:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:59:09,691 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 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 124 [2023-12-20 02:59:09,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:11,175 INFO L225 Difference]: With dead ends: 631376 [2023-12-20 02:59:11,175 INFO L226 Difference]: Without dead ends: 602397 [2023-12-20 02:59:11,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:59:11,413 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 4124 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2845 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4124 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:11,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4124 Valid, 2702 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2845 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:59:11,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602397 states. [2023-12-20 02:59:16,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602397 to 405911. [2023-12-20 02:59:16,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405911 states, 405910 states have (on average 1.1736665763346554) internal successors, (476403), 405910 states have internal predecessors, (476403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:17,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405911 states to 405911 states and 476403 transitions. [2023-12-20 02:59:17,369 INFO L78 Accepts]: Start accepts. Automaton has 405911 states and 476403 transitions. Word has length 124 [2023-12-20 02:59:17,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:17,369 INFO L495 AbstractCegarLoop]: Abstraction has 405911 states and 476403 transitions. [2023-12-20 02:59:17,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:17,369 INFO L276 IsEmpty]: Start isEmpty. Operand 405911 states and 476403 transitions. [2023-12-20 02:59:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-20 02:59:17,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:17,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:17,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-12-20 02:59:17,379 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:59:17,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2016907340, now seen corresponding path program 1 times [2023-12-20 02:59:17,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:17,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47349540] [2023-12-20 02:59:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:17,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 02:59:17,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47349540] [2023-12-20 02:59:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47349540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:17,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:17,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:59:17,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019953908] [2023-12-20 02:59:17,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:17,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:59:17,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:17,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:59:17,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:59:17,569 INFO L87 Difference]: Start difference. First operand 405911 states and 476403 transitions. Second operand has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:19,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:19,931 INFO L93 Difference]: Finished difference Result 432469 states and 507762 transitions. [2023-12-20 02:59:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:59:19,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 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 124 [2023-12-20 02:59:19,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:20,506 INFO L225 Difference]: With dead ends: 432469 [2023-12-20 02:59:20,506 INFO L226 Difference]: Without dead ends: 419851 [2023-12-20 02:59:20,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:59:20,571 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 2326 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:20,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 2852 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:59:20,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419851 states. [2023-12-20 02:59:24,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419851 to 405914. [2023-12-20 02:59:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405914 states, 405913 states have (on average 1.1736652928090503) internal successors, (476406), 405913 states have internal predecessors, (476406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405914 states to 405914 states and 476406 transitions. [2023-12-20 02:59:25,832 INFO L78 Accepts]: Start accepts. Automaton has 405914 states and 476406 transitions. Word has length 124 [2023-12-20 02:59:25,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:25,832 INFO L495 AbstractCegarLoop]: Abstraction has 405914 states and 476406 transitions. [2023-12-20 02:59:25,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:25,832 INFO L276 IsEmpty]: Start isEmpty. Operand 405914 states and 476406 transitions. [2023-12-20 02:59:25,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 02:59:25,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:25,842 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:25,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-20 02:59:25,842 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:59:25,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:25,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1844608198, now seen corresponding path program 1 times [2023-12-20 02:59:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:25,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834064245] [2023-12-20 02:59:25,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:25,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 02:59:26,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:26,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834064245] [2023-12-20 02:59:26,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834064245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:26,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:26,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:59:26,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791351238] [2023-12-20 02:59:26,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:26,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:59:26,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:26,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:59:26,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:59:26,064 INFO L87 Difference]: Start difference. First operand 405914 states and 476406 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:28,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:28,580 INFO L93 Difference]: Finished difference Result 435884 states and 511132 transitions. [2023-12-20 02:59:28,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:59:28,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-20 02:59:28,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:29,160 INFO L225 Difference]: With dead ends: 435884 [2023-12-20 02:59:29,160 INFO L226 Difference]: Without dead ends: 423146 [2023-12-20 02:59:29,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:59:29,232 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 4326 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4326 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:29,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4326 Valid, 2783 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:59:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423146 states. [2023-12-20 02:59:33,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423146 to 405919. [2023-12-20 02:59:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405919 states, 405918 states have (on average 1.1736680807453723) internal successors, (476413), 405918 states have internal predecessors, (476413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:34,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405919 states to 405919 states and 476413 transitions. [2023-12-20 02:59:34,901 INFO L78 Accepts]: Start accepts. Automaton has 405919 states and 476413 transitions. Word has length 125 [2023-12-20 02:59:34,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:34,901 INFO L495 AbstractCegarLoop]: Abstraction has 405919 states and 476413 transitions. [2023-12-20 02:59:34,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 405919 states and 476413 transitions. [2023-12-20 02:59:34,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 02:59:34,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:34,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:34,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-12-20 02:59:34,913 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:59:34,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:34,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1498228499, now seen corresponding path program 1 times [2023-12-20 02:59:34,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:34,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904941324] [2023-12-20 02:59:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:34,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 02:59:35,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:35,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904941324] [2023-12-20 02:59:35,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904941324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:35,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:35,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:59:35,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648351319] [2023-12-20 02:59:35,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:35,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:59:35,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:35,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:59:35,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:59:35,053 INFO L87 Difference]: Start difference. First operand 405919 states and 476413 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:37,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:37,517 INFO L93 Difference]: Finished difference Result 576412 states and 677248 transitions. [2023-12-20 02:59:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:59:37,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-20 02:59:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:38,382 INFO L225 Difference]: With dead ends: 576412 [2023-12-20 02:59:38,382 INFO L226 Difference]: Without dead ends: 563233 [2023-12-20 02:59:38,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:59:38,779 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 3470 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3470 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:38,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3470 Valid, 2041 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:59:39,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563233 states. [2023-12-20 02:59:42,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563233 to 405916. [2023-12-20 02:59:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405916 states, 405915 states have (on average 1.1736669007058127) internal successors, (476409), 405915 states have internal predecessors, (476409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405916 states to 405916 states and 476409 transitions. [2023-12-20 02:59:44,180 INFO L78 Accepts]: Start accepts. Automaton has 405916 states and 476409 transitions. Word has length 125 [2023-12-20 02:59:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:44,180 INFO L495 AbstractCegarLoop]: Abstraction has 405916 states and 476409 transitions. [2023-12-20 02:59:44,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 405916 states and 476409 transitions. [2023-12-20 02:59:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 02:59:44,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:44,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:44,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-12-20 02:59:44,190 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:59:44,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash -118463484, now seen corresponding path program 1 times [2023-12-20 02:59:44,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:44,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734568763] [2023-12-20 02:59:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:44,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 02:59:44,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:44,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734568763] [2023-12-20 02:59:44,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734568763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:44,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:44,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:59:44,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245737189] [2023-12-20 02:59:44,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:44,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:59:44,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:59:44,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:59:44,371 INFO L87 Difference]: Start difference. First operand 405916 states and 476409 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:46,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:46,904 INFO L93 Difference]: Finished difference Result 494308 states and 580455 transitions. [2023-12-20 02:59:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:59:46,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-12-20 02:59:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:47,772 INFO L225 Difference]: With dead ends: 494308 [2023-12-20 02:59:47,772 INFO L226 Difference]: Without dead ends: 427383 [2023-12-20 02:59:47,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:59:47,826 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 2909 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2688 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:47,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 3027 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2688 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:59:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427383 states. [2023-12-20 02:59:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427383 to 405916. [2023-12-20 02:59:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405916 states, 405915 states have (on average 1.1736644371358536) internal successors, (476408), 405915 states have internal predecessors, (476408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405916 states to 405916 states and 476408 transitions. [2023-12-20 02:59:53,321 INFO L78 Accepts]: Start accepts. Automaton has 405916 states and 476408 transitions. Word has length 125 [2023-12-20 02:59:53,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:59:53,321 INFO L495 AbstractCegarLoop]: Abstraction has 405916 states and 476408 transitions. [2023-12-20 02:59:53,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:53,322 INFO L276 IsEmpty]: Start isEmpty. Operand 405916 states and 476408 transitions. [2023-12-20 02:59:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-20 02:59:53,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:59:53,331 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:59:53,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-20 02:59:53,332 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 02:59:53,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:59:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2016447020, now seen corresponding path program 1 times [2023-12-20 02:59:53,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:59:53,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815766191] [2023-12-20 02:59:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:59:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:59:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:59:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 02:59:53,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:59:53,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815766191] [2023-12-20 02:59:53,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815766191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:59:53,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:59:53,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:59:53,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697746777] [2023-12-20 02:59:53,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:59:53,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:59:53,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:59:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:59:53,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:59:53,513 INFO L87 Difference]: Start difference. First operand 405916 states and 476408 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:59:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:59:57,338 INFO L93 Difference]: Finished difference Result 773615 states and 908557 transitions. [2023-12-20 02:59:57,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 02:59:57,339 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 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 126 [2023-12-20 02:59:57,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:59:58,709 INFO L225 Difference]: With dead ends: 773615 [2023-12-20 02:59:58,709 INFO L226 Difference]: Without dead ends: 742664 [2023-12-20 02:59:58,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:59:58,816 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 3658 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3658 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:59:58,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3658 Valid, 3272 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 02:59:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742664 states. [2023-12-20 03:00:04,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742664 to 405908. [2023-12-20 03:00:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405908 states, 405907 states have (on average 1.1736604690236927) internal successors, (476397), 405907 states have internal predecessors, (476397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405908 states to 405908 states and 476397 transitions. [2023-12-20 03:00:05,575 INFO L78 Accepts]: Start accepts. Automaton has 405908 states and 476397 transitions. Word has length 126 [2023-12-20 03:00:05,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:00:05,575 INFO L495 AbstractCegarLoop]: Abstraction has 405908 states and 476397 transitions. [2023-12-20 03:00:05,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:00:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 405908 states and 476397 transitions. [2023-12-20 03:00:05,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-20 03:00:05,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:00:05,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:00:05,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-12-20 03:00:05,586 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:00:05,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:00:05,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1664027899, now seen corresponding path program 1 times [2023-12-20 03:00:05,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:00:05,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108610194] [2023-12-20 03:00:05,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:00:05,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:00:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:00:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:00:06,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:00:06,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108610194] [2023-12-20 03:00:06,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108610194] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:00:06,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941177062] [2023-12-20 03:00:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:00:06,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:00:06,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:00:06,054 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:00:06,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process