/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:27:39,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:27:39,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:27:39,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:27:39,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:27:39,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:27:39,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:27:39,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:27:39,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:27:39,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:27:39,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:27:39,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:27:39,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:27:39,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:27:39,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:27:39,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:27:39,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:27:39,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:27:39,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:27:39,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:27:39,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:27:39,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:27:39,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:27:39,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:27:39,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 06:27:39,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 06:27:39,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 06:27:39,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 06:27:39,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 06:27:39,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 06:27:39,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 06:27:39,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 06:27:39,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 06:27:39,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 06:27:39,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 06:27:39,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 06:27:39,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 06:27:39,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 06:27:39,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:27:39,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:27:39,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:27:39,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 06:27:39,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:27:39,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:27:39,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:27:39,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:27:39,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:27:39,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:27:39,272 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:27:39,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:27:39,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:27:39,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:27:39,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:27:39,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:27:39,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:27:39,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:27:39,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:27:39,275 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:27:39,275 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:27:39,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:27:39,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:27:39,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:27:39,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:27:39,500 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:27:39,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2022-01-11 06:27:39,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f49a2952/9a4754a3ea4f44f88a0963226719d44d/FLAG1f9639caf [2022-01-11 06:27:40,038 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:27:40,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2022-01-11 06:27:40,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f49a2952/9a4754a3ea4f44f88a0963226719d44d/FLAG1f9639caf [2022-01-11 06:27:40,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f49a2952/9a4754a3ea4f44f88a0963226719d44d [2022-01-11 06:27:40,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:27:40,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:27:40,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:27:40,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:27:40,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:27:40,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:27:40" (1/1) ... [2022-01-11 06:27:40,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43974789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:40, skipping insertion in model container [2022-01-11 06:27:40,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:27:40" (1/1) ... [2022-01-11 06:27:40,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:27:40,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:27:40,843 WARN L230 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_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[30493,30506] [2022-01-11 06:27:40,887 WARN L230 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_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[33882,33895] [2022-01-11 06:27:41,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:27:41,074 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:27:41,248 WARN L230 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_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[30493,30506] [2022-01-11 06:27:41,281 WARN L230 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_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[33882,33895] [2022-01-11 06:27:41,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:27:41,416 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:27:41,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41 WrapperNode [2022-01-11 06:27:41,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:27:41,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:27:41,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:27:41,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:27:41,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,547 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3792 [2022-01-11 06:27:41,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:27:41,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:27:41,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:27:41,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:27:41,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:27:41,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:27:41,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:27:41,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:27:41,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (1/1) ... [2022-01-11 06:27:41,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:27:41,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:27:41,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 06:27:41,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 06:27:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:27:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:27:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:27:41,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:27:41,876 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:27:41,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:27:43,606 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:27:43,624 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:27:43,624 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 06:27:43,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:27:43 BoogieIcfgContainer [2022-01-11 06:27:43,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:27:43,633 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:27:43,633 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:27:43,635 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:27:43,637 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:27:43" (1/1) ... [2022-01-11 06:27:44,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:27:44 BasicIcfg [2022-01-11 06:27:44,758 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:27:44,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:27:44,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:27:44,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:27:44,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:27:40" (1/4) ... [2022-01-11 06:27:44,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340723ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:27:44, skipping insertion in model container [2022-01-11 06:27:44,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:41" (2/4) ... [2022-01-11 06:27:44,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340723ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:27:44, skipping insertion in model container [2022-01-11 06:27:44,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:27:43" (3/4) ... [2022-01-11 06:27:44,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340723ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:27:44, skipping insertion in model container [2022-01-11 06:27:44,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:27:44" (4/4) ... [2022-01-11 06:27:44,764 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.p+lhb-reducer.cTransformedIcfg [2022-01-11 06:27:44,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:27:44,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 06:27:44,810 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:27:44,815 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 06:27:44,816 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 06:27:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 1121 states, 1118 states have (on average 1.7361359570661896) internal successors, (1941), 1120 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:44,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-11 06:27:44,901 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:44,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:44,902 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:44,908 INFO L85 PathProgramCache]: Analyzing trace with hash -126226343, now seen corresponding path program 1 times [2022-01-11 06:27:44,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:44,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288759164] [2022-01-11 06:27:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:44,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:45,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:45,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288759164] [2022-01-11 06:27:45,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288759164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:45,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:45,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:45,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81345696] [2022-01-11 06:27:45,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:45,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:45,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:45,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:45,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:45,333 INFO L87 Difference]: Start difference. First operand has 1121 states, 1118 states have (on average 1.7361359570661896) internal successors, (1941), 1120 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:45,516 INFO L93 Difference]: Finished difference Result 2708 states and 4658 transitions. [2022-01-11 06:27:45,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:45,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2022-01-11 06:27:45,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:45,537 INFO L225 Difference]: With dead ends: 2708 [2022-01-11 06:27:45,537 INFO L226 Difference]: Without dead ends: 1915 [2022-01-11 06:27:45,544 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:45,547 INFO L933 BasicCegarLoop]: 1935 mSDtfsCounter, 1350 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:45,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1350 Valid, 3842 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:45,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-01-11 06:27:45,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1845. [2022-01-11 06:27:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1843 states have (on average 1.7205642973412913) internal successors, (3171), 1844 states have internal predecessors, (3171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 3171 transitions. [2022-01-11 06:27:45,644 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 3171 transitions. Word has length 150 [2022-01-11 06:27:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:45,645 INFO L470 AbstractCegarLoop]: Abstraction has 1845 states and 3171 transitions. [2022-01-11 06:27:45,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 3171 transitions. [2022-01-11 06:27:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-11 06:27:45,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:45,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:45,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:27:45,656 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:45,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:45,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1268813345, now seen corresponding path program 1 times [2022-01-11 06:27:45,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:45,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140690777] [2022-01-11 06:27:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:45,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:45,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:45,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140690777] [2022-01-11 06:27:45,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140690777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:45,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:45,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:45,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753915961] [2022-01-11 06:27:45,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:45,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:45,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:45,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:45,866 INFO L87 Difference]: Start difference. First operand 1845 states and 3171 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:46,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:46,142 INFO L93 Difference]: Finished difference Result 5404 states and 9292 transitions. [2022-01-11 06:27:46,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:27:46,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-11 06:27:46,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:46,154 INFO L225 Difference]: With dead ends: 5404 [2022-01-11 06:27:46,154 INFO L226 Difference]: Without dead ends: 3600 [2022-01-11 06:27:46,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:46,157 INFO L933 BasicCegarLoop]: 2408 mSDtfsCounter, 5027 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5027 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:46,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5027 Valid, 4235 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:46,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2022-01-11 06:27:46,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3596. [2022-01-11 06:27:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 3594 states have (on average 1.7161936560934892) internal successors, (6168), 3595 states have internal predecessors, (6168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 6168 transitions. [2022-01-11 06:27:46,274 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 6168 transitions. Word has length 165 [2022-01-11 06:27:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:46,275 INFO L470 AbstractCegarLoop]: Abstraction has 3596 states and 6168 transitions. [2022-01-11 06:27:46,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 6168 transitions. [2022-01-11 06:27:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-01-11 06:27:46,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:46,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:46,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:27:46,282 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:46,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:46,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2103675224, now seen corresponding path program 1 times [2022-01-11 06:27:46,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:46,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141387550] [2022-01-11 06:27:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:46,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:46,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:46,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141387550] [2022-01-11 06:27:46,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141387550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:46,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:46,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:46,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602181260] [2022-01-11 06:27:46,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:46,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:46,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:46,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:46,422 INFO L87 Difference]: Start difference. First operand 3596 states and 6168 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:46,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:46,793 INFO L93 Difference]: Finished difference Result 10539 states and 18087 transitions. [2022-01-11 06:27:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:46,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2022-01-11 06:27:46,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:46,819 INFO L225 Difference]: With dead ends: 10539 [2022-01-11 06:27:46,820 INFO L226 Difference]: Without dead ends: 7038 [2022-01-11 06:27:46,830 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:46,833 INFO L933 BasicCegarLoop]: 3704 mSDtfsCounter, 1804 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 5541 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:46,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1804 Valid, 5541 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:46,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2022-01-11 06:27:47,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 7034. [2022-01-11 06:27:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 7032 states have (on average 1.7121729237770194) internal successors, (12040), 7033 states have internal predecessors, (12040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:47,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 12040 transitions. [2022-01-11 06:27:47,151 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 12040 transitions. Word has length 167 [2022-01-11 06:27:47,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:47,152 INFO L470 AbstractCegarLoop]: Abstraction has 7034 states and 12040 transitions. [2022-01-11 06:27:47,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:47,152 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 12040 transitions. [2022-01-11 06:27:47,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-01-11 06:27:47,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:47,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:47,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:27:47,163 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:47,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:47,163 INFO L85 PathProgramCache]: Analyzing trace with hash -536563766, now seen corresponding path program 1 times [2022-01-11 06:27:47,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:47,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100509332] [2022-01-11 06:27:47,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:47,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:47,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:47,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100509332] [2022-01-11 06:27:47,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100509332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:47,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:47,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:47,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768175878] [2022-01-11 06:27:47,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:47,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:47,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:47,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:47,244 INFO L87 Difference]: Start difference. First operand 7034 states and 12040 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:47,645 INFO L93 Difference]: Finished difference Result 20999 states and 35933 transitions. [2022-01-11 06:27:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:47,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2022-01-11 06:27:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:47,701 INFO L225 Difference]: With dead ends: 20999 [2022-01-11 06:27:47,701 INFO L226 Difference]: Without dead ends: 14021 [2022-01-11 06:27:47,712 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:47,716 INFO L933 BasicCegarLoop]: 3803 mSDtfsCounter, 1882 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 5719 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:47,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1882 Valid, 5719 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:47,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14021 states. [2022-01-11 06:27:48,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14021 to 7053. [2022-01-11 06:27:48,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7053 states, 7051 states have (on average 1.7116721032477662) internal successors, (12069), 7052 states have internal predecessors, (12069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:48,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7053 states to 7053 states and 12069 transitions. [2022-01-11 06:27:48,128 INFO L78 Accepts]: Start accepts. Automaton has 7053 states and 12069 transitions. Word has length 167 [2022-01-11 06:27:48,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:48,129 INFO L470 AbstractCegarLoop]: Abstraction has 7053 states and 12069 transitions. [2022-01-11 06:27:48,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 7053 states and 12069 transitions. [2022-01-11 06:27:48,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-11 06:27:48,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:48,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:48,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 06:27:48,145 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -837799070, now seen corresponding path program 1 times [2022-01-11 06:27:48,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:48,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744848634] [2022-01-11 06:27:48,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:48,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:48,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:48,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744848634] [2022-01-11 06:27:48,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744848634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:48,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:48,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:48,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975483186] [2022-01-11 06:27:48,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:48,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:48,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:48,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:48,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:48,257 INFO L87 Difference]: Start difference. First operand 7053 states and 12069 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:48,808 INFO L93 Difference]: Finished difference Result 14513 states and 24863 transitions. [2022-01-11 06:27:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:27:48,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-01-11 06:27:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:48,822 INFO L225 Difference]: With dead ends: 14513 [2022-01-11 06:27:48,822 INFO L226 Difference]: Without dead ends: 7569 [2022-01-11 06:27:48,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:48,832 INFO L933 BasicCegarLoop]: 2388 mSDtfsCounter, 5025 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5025 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:48,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5025 Valid, 4215 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:48,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7569 states. [2022-01-11 06:27:49,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7569 to 7041. [2022-01-11 06:27:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7041 states, 7039 states have (on average 1.7104702372496092) internal successors, (12040), 7040 states have internal predecessors, (12040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7041 states to 7041 states and 12040 transitions. [2022-01-11 06:27:49,305 INFO L78 Accepts]: Start accepts. Automaton has 7041 states and 12040 transitions. Word has length 168 [2022-01-11 06:27:49,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:49,307 INFO L470 AbstractCegarLoop]: Abstraction has 7041 states and 12040 transitions. [2022-01-11 06:27:49,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 7041 states and 12040 transitions. [2022-01-11 06:27:49,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-01-11 06:27:49,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:49,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:49,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 06:27:49,325 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:49,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1001926693, now seen corresponding path program 1 times [2022-01-11 06:27:49,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:49,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061203900] [2022-01-11 06:27:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:49,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:49,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:49,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:49,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061203900] [2022-01-11 06:27:49,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061203900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:49,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:49,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:49,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712320198] [2022-01-11 06:27:49,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:49,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:49,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:49,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:49,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:49,444 INFO L87 Difference]: Start difference. First operand 7041 states and 12040 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:50,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:50,189 INFO L93 Difference]: Finished difference Result 20694 states and 35423 transitions. [2022-01-11 06:27:50,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:27:50,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2022-01-11 06:27:50,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:50,217 INFO L225 Difference]: With dead ends: 20694 [2022-01-11 06:27:50,218 INFO L226 Difference]: Without dead ends: 13760 [2022-01-11 06:27:50,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:50,234 INFO L933 BasicCegarLoop]: 2848 mSDtfsCounter, 4571 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4571 SdHoareTripleChecker+Valid, 4675 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:50,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4571 Valid, 4675 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:50,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13760 states. [2022-01-11 06:27:50,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13760 to 13756. [2022-01-11 06:27:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13756 states, 13754 states have (on average 1.706339973825796) internal successors, (23469), 13755 states have internal predecessors, (23469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13756 states to 13756 states and 23469 transitions. [2022-01-11 06:27:51,020 INFO L78 Accepts]: Start accepts. Automaton has 13756 states and 23469 transitions. Word has length 170 [2022-01-11 06:27:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:51,020 INFO L470 AbstractCegarLoop]: Abstraction has 13756 states and 23469 transitions. [2022-01-11 06:27:51,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand 13756 states and 23469 transitions. [2022-01-11 06:27:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-11 06:27:51,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:51,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:51,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 06:27:51,042 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:51,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:51,043 INFO L85 PathProgramCache]: Analyzing trace with hash 450732148, now seen corresponding path program 1 times [2022-01-11 06:27:51,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:51,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952356256] [2022-01-11 06:27:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:51,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:51,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:51,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952356256] [2022-01-11 06:27:51,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952356256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:51,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:51,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:51,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61939235] [2022-01-11 06:27:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:51,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:51,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:51,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:51,157 INFO L87 Difference]: Start difference. First operand 13756 states and 23469 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:52,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:52,587 INFO L93 Difference]: Finished difference Result 35360 states and 60125 transitions. [2022-01-11 06:27:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:52,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2022-01-11 06:27:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:52,627 INFO L225 Difference]: With dead ends: 35360 [2022-01-11 06:27:52,627 INFO L226 Difference]: Without dead ends: 23316 [2022-01-11 06:27:52,641 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:52,642 INFO L933 BasicCegarLoop]: 1976 mSDtfsCounter, 1364 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:52,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 3742 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:52,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23316 states. [2022-01-11 06:27:53,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23316 to 23312. [2022-01-11 06:27:53,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23312 states, 23310 states have (on average 1.6992277992277993) internal successors, (39609), 23311 states have internal predecessors, (39609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:54,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23312 states to 23312 states and 39609 transitions. [2022-01-11 06:27:54,012 INFO L78 Accepts]: Start accepts. Automaton has 23312 states and 39609 transitions. Word has length 172 [2022-01-11 06:27:54,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:54,013 INFO L470 AbstractCegarLoop]: Abstraction has 23312 states and 39609 transitions. [2022-01-11 06:27:54,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:54,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23312 states and 39609 transitions. [2022-01-11 06:27:54,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-01-11 06:27:54,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:54,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:54,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 06:27:54,049 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:27:54,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1682146528, now seen corresponding path program 1 times [2022-01-11 06:27:54,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:54,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078270261] [2022-01-11 06:27:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:54,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:54,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:54,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078270261] [2022-01-11 06:27:54,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078270261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:54,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:54,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:54,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683255231] [2022-01-11 06:27:54,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:54,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:54,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:54,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:54,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:54,181 INFO L87 Difference]: Start difference. First operand 23312 states and 39609 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:57,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:57,090 INFO L93 Difference]: Finished difference Result 69019 states and 117305 transitions. [2022-01-11 06:27:57,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:27:57,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 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 187 [2022-01-11 06:27:57,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:57,171 INFO L225 Difference]: With dead ends: 69019 [2022-01-11 06:27:57,171 INFO L226 Difference]: Without dead ends: 46047 [2022-01-11 06:27:57,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:57,207 INFO L933 BasicCegarLoop]: 2383 mSDtfsCounter, 5107 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5107 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:57,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5107 Valid, 4210 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:57,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46047 states. [2022-01-11 06:28:00,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46047 to 46043. [2022-01-11 06:28:00,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46043 states, 46041 states have (on average 1.6950109684846115) internal successors, (78040), 46042 states have internal predecessors, (78040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46043 states to 46043 states and 78040 transitions. [2022-01-11 06:28:00,523 INFO L78 Accepts]: Start accepts. Automaton has 46043 states and 78040 transitions. Word has length 187 [2022-01-11 06:28:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:28:00,523 INFO L470 AbstractCegarLoop]: Abstraction has 46043 states and 78040 transitions. [2022-01-11 06:28:00,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:00,524 INFO L276 IsEmpty]: Start isEmpty. Operand 46043 states and 78040 transitions. [2022-01-11 06:28:00,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-11 06:28:00,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:28:00,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:28:00,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 06:28:00,584 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:28:00,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:28:00,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1199914565, now seen corresponding path program 1 times [2022-01-11 06:28:00,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:28:00,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185959590] [2022-01-11 06:28:00,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:28:00,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:28:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:28:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:28:00,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:28:00,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185959590] [2022-01-11 06:28:00,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185959590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:28:00,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:28:00,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:28:00,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085457009] [2022-01-11 06:28:00,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:28:00,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:28:00,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:28:00,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:28:00,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:28:00,678 INFO L87 Difference]: Start difference. First operand 46043 states and 78040 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:06,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:28:06,573 INFO L93 Difference]: Finished difference Result 135480 states and 229905 transitions. [2022-01-11 06:28:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:28:06,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2022-01-11 06:28:06,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:28:06,752 INFO L225 Difference]: With dead ends: 135480 [2022-01-11 06:28:06,753 INFO L226 Difference]: Without dead ends: 90060 [2022-01-11 06:28:06,820 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:28:06,821 INFO L933 BasicCegarLoop]: 3720 mSDtfsCounter, 1818 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 5557 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:28:06,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1818 Valid, 5557 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:28:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90060 states. [2022-01-11 06:28:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90060 to 90056. [2022-01-11 06:28:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90056 states, 90054 states have (on average 1.6901525751215938) internal successors, (152205), 90055 states have internal predecessors, (152205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90056 states to 90056 states and 152205 transitions. [2022-01-11 06:28:13,042 INFO L78 Accepts]: Start accepts. Automaton has 90056 states and 152205 transitions. Word has length 189 [2022-01-11 06:28:13,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:28:13,042 INFO L470 AbstractCegarLoop]: Abstraction has 90056 states and 152205 transitions. [2022-01-11 06:28:13,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 90056 states and 152205 transitions. [2022-01-11 06:28:13,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-11 06:28:13,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:28:13,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:28:13,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 06:28:13,359 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:28:13,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:28:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1063932007, now seen corresponding path program 1 times [2022-01-11 06:28:13,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:28:13,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293299357] [2022-01-11 06:28:13,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:28:13,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:28:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:28:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:28:13,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:28:13,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293299357] [2022-01-11 06:28:13,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293299357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:28:13,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:28:13,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:28:13,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761673414] [2022-01-11 06:28:13,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:28:13,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:28:13,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:28:13,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:28:13,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:28:13,422 INFO L87 Difference]: Start difference. First operand 90056 states and 152205 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:24,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:28:24,741 INFO L93 Difference]: Finished difference Result 270101 states and 456494 transitions. [2022-01-11 06:28:24,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:28:24,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2022-01-11 06:28:24,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:28:25,091 INFO L225 Difference]: With dead ends: 270101 [2022-01-11 06:28:25,091 INFO L226 Difference]: Without dead ends: 180083 [2022-01-11 06:28:25,214 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:28:25,215 INFO L933 BasicCegarLoop]: 3836 mSDtfsCounter, 1915 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 5752 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:28:25,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1915 Valid, 5752 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:28:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180083 states. [2022-01-11 06:28:32,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180083 to 90075. [2022-01-11 06:28:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90075 states, 90073 states have (on average 1.690118015387519) internal successors, (152234), 90074 states have internal predecessors, (152234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90075 states to 90075 states and 152234 transitions. [2022-01-11 06:28:32,999 INFO L78 Accepts]: Start accepts. Automaton has 90075 states and 152234 transitions. Word has length 189 [2022-01-11 06:28:32,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:28:32,999 INFO L470 AbstractCegarLoop]: Abstraction has 90075 states and 152234 transitions. [2022-01-11 06:28:32,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 90075 states and 152234 transitions. [2022-01-11 06:28:33,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-01-11 06:28:33,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:28:33,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:28:33,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 06:28:33,117 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:28:33,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:28:33,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1297479789, now seen corresponding path program 1 times [2022-01-11 06:28:33,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:28:33,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319621306] [2022-01-11 06:28:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:28:33,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:28:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:28:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:28:33,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:28:33,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319621306] [2022-01-11 06:28:33,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319621306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:28:33,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:28:33,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:28:33,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091689562] [2022-01-11 06:28:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:28:33,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:28:33,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:28:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:28:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:28:33,227 INFO L87 Difference]: Start difference. First operand 90075 states and 152234 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)