/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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:38:00,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:38:00,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:38:00,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:38:00,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:38:00,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:38:00,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:38:00,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:38:00,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:38:00,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:38:00,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:38:00,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:38:00,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:38:00,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:38:00,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:38:00,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:38:00,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:38:00,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:38:00,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:38:00,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:38:00,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:38:00,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:38:00,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:38:00,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:38:00,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 06:38:00,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 06:38:00,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 06:38:00,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 06:38:00,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 06:38:00,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 06:38:00,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 06:38:00,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 06:38:00,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 06:38:00,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 06:38:00,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 06:38:00,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 06:38:00,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 06:38:00,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 06:38:00,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:38:00,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:38:00,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:38:00,456 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 06:38:00,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:38:00,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:38:00,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:38:00,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:38:00,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:38:00,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:38:00,475 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:38:00,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:38:00,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:38:00,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:38:00,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:38:00,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:38:00,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:38:00,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:38:00,477 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:38:00,477 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:38:00,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:38:00,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:38:00,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:38:00,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:38:00,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:38:00,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:38:00,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:38:00,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:38:00,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:38:00,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:38:00,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:38:00,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:38:00,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:38:00,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:38:00,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:38:00,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:38:00,479 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:38:00,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:38:00,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:38:00,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:38:00,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:38:00,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:38:00,720 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:38:00,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-11 06:38:00,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d41ec7f/0c1a17d7bf974278a3c9ef6a62d23e16/FLAG10a75c9c3 [2022-01-11 06:38:01,235 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:38:01,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-11 06:38:01,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d41ec7f/0c1a17d7bf974278a3c9ef6a62d23e16/FLAG10a75c9c3 [2022-01-11 06:38:01,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d41ec7f/0c1a17d7bf974278a3c9ef6a62d23e16 [2022-01-11 06:38:01,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:38:01,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:38:01,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:38:01,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:38:01,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:38:01,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:01,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482c4045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01, skipping insertion in model container [2022-01-11 06:38:01,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:01,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:38:01,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:38:01,873 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6638,6651] [2022-01-11 06:38:01,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:38:01,917 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:38:01,953 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6638,6651] [2022-01-11 06:38:01,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:38:01,998 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:38:01,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01 WrapperNode [2022-01-11 06:38:01,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:38:02,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:38:02,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:38:02,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:38:02,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,045 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 504 [2022-01-11 06:38:02,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:38:02,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:38:02,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:38:02,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:38:02,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:38:02,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:38:02,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:38:02,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:38:02,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (1/1) ... [2022-01-11 06:38:02,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:38:02,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:38:02,126 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 06:38:02,128 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 06:38:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:38:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:38:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:38:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:38:02,288 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:38:02,290 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:38:02,878 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:38:02,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:38:02,885 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 06:38:02,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:38:02 BoogieIcfgContainer [2022-01-11 06:38:02,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:38:02,891 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:38:02,891 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:38:02,900 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:38:02,902 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:38:02" (1/1) ... [2022-01-11 06:38:03,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:38:03 BasicIcfg [2022-01-11 06:38:03,314 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:38:03,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:38:03,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:38:03,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:38:03,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:38:01" (1/4) ... [2022-01-11 06:38:03,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e428e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:38:03, skipping insertion in model container [2022-01-11 06:38:03,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:38:01" (2/4) ... [2022-01-11 06:38:03,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e428e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:38:03, skipping insertion in model container [2022-01-11 06:38:03,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:38:02" (3/4) ... [2022-01-11 06:38:03,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e428e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:38:03, skipping insertion in model container [2022-01-11 06:38:03,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:38:03" (4/4) ... [2022-01-11 06:38:03,324 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.cTransformedIcfg [2022-01-11 06:38:03,328 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:38:03,330 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 06:38:03,384 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:38:03,394 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 06:38:03,394 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 06:38:03,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 121 states have (on average 1.743801652892562) internal successors, (211), 122 states have internal predecessors, (211), 0 states have call successors, (0), 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 06:38:03,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 06:38:03,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:38:03,421 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] [2022-01-11 06:38:03,421 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:38:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:38:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1390767453, now seen corresponding path program 1 times [2022-01-11 06:38:03,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:38:03,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166893237] [2022-01-11 06:38:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:38:03,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:38:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:38:04,092 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 06:38:04,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:38:04,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166893237] [2022-01-11 06:38:04,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166893237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:38:04,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:38:04,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:38:04,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472996288] [2022-01-11 06:38:04,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:38:04,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:38:04,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:38:04,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:38:04,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:38:04,134 INFO L87 Difference]: Start difference. First operand has 123 states, 121 states have (on average 1.743801652892562) internal successors, (211), 122 states have internal predecessors, (211), 0 states have call successors, (0), 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 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 06:38:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:38:04,733 INFO L93 Difference]: Finished difference Result 245 states and 401 transitions. [2022-01-11 06:38:04,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:38:04,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-11 06:38:04,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:38:04,748 INFO L225 Difference]: With dead ends: 245 [2022-01-11 06:38:04,749 INFO L226 Difference]: Without dead ends: 184 [2022-01-11 06:38:04,751 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 06:38:04,754 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 06:38:04,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 439 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 06:38:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-01-11 06:38:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2022-01-11 06:38:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.4530386740331491) internal successors, (263), 181 states have internal predecessors, (263), 0 states have call successors, (0), 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 06:38:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 263 transitions. [2022-01-11 06:38:04,841 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 263 transitions. Word has length 61 [2022-01-11 06:38:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:38:04,842 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 263 transitions. [2022-01-11 06:38:04,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 06:38:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 263 transitions. [2022-01-11 06:38:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 06:38:04,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:38:04,844 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] [2022-01-11 06:38:04,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:38:04,844 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:38:04,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:38:04,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1721742562, now seen corresponding path program 1 times [2022-01-11 06:38:04,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:38:04,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863620186] [2022-01-11 06:38:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:38:04,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:38:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:38:05,468 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 06:38:05,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:38:05,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863620186] [2022-01-11 06:38:05,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863620186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:38:05,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:38:05,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 06:38:05,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506270905] [2022-01-11 06:38:05,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:38:05,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:38:05,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:38:05,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:38:05,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:38:05,471 INFO L87 Difference]: Start difference. First operand 182 states and 263 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:38:08,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:13,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:15,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:17,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:19,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:21,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:23,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:25,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:26,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:38:26,643 INFO L93 Difference]: Finished difference Result 1197 states and 1833 transitions. [2022-01-11 06:38:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 06:38:26,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 06:38:26,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:38:26,651 INFO L225 Difference]: With dead ends: 1197 [2022-01-11 06:38:26,651 INFO L226 Difference]: Without dead ends: 1048 [2022-01-11 06:38:26,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-01-11 06:38:26,656 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 1021 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 20 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-01-11 06:38:26,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 1427 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 765 Invalid, 8 Unknown, 0 Unchecked, 20.3s Time] [2022-01-11 06:38:26,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2022-01-11 06:38:26,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 750. [2022-01-11 06:38:26,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 749 states have (on average 1.528704939919893) internal successors, (1145), 749 states have internal predecessors, (1145), 0 states have call successors, (0), 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 06:38:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1145 transitions. [2022-01-11 06:38:26,941 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1145 transitions. Word has length 63 [2022-01-11 06:38:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:38:26,941 INFO L470 AbstractCegarLoop]: Abstraction has 750 states and 1145 transitions. [2022-01-11 06:38:26,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:38:26,942 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1145 transitions. [2022-01-11 06:38:26,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 06:38:26,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:38:26,944 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] [2022-01-11 06:38:26,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:38:26,944 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:38:26,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:38:26,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2023164167, now seen corresponding path program 1 times [2022-01-11 06:38:26,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:38:26,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974096534] [2022-01-11 06:38:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:38:26,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:38:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:38:27,501 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 06:38:27,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:38:27,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974096534] [2022-01-11 06:38:27,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974096534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:38:27,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:38:27,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 06:38:27,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038092897] [2022-01-11 06:38:27,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:38:27,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:38:27,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:38:27,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:38:27,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:38:27,504 INFO L87 Difference]: Start difference. First operand 750 states and 1145 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:38:30,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:32,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:36,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:38,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:40,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:44,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:46,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:48,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:50,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:52,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:38:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:38:53,338 INFO L93 Difference]: Finished difference Result 4265 states and 6645 transitions. [2022-01-11 06:38:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:38:53,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 06:38:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:38:53,356 INFO L225 Difference]: With dead ends: 4265 [2022-01-11 06:38:53,356 INFO L226 Difference]: Without dead ends: 3633 [2022-01-11 06:38:53,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-01-11 06:38:53,361 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 922 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 15 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:38:53,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 1201 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 613 Invalid, 10 Unknown, 0 Unchecked, 24.2s Time] [2022-01-11 06:38:53,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-01-11 06:38:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 1665. [2022-01-11 06:38:53,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1664 states have (on average 1.5408653846153846) internal successors, (2564), 1664 states have internal predecessors, (2564), 0 states have call successors, (0), 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 06:38:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2564 transitions. [2022-01-11 06:38:53,975 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2564 transitions. Word has length 64 [2022-01-11 06:38:53,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:38:53,976 INFO L470 AbstractCegarLoop]: Abstraction has 1665 states and 2564 transitions. [2022-01-11 06:38:53,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:38:53,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2564 transitions. [2022-01-11 06:38:53,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 06:38:53,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:38:53,979 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] [2022-01-11 06:38:53,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:38:53,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:38:53,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:38:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash -43627288, now seen corresponding path program 1 times [2022-01-11 06:38:53,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:38:53,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046476008] [2022-01-11 06:38:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:38:53,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:38:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:38:54,453 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 06:38:54,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:38:54,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046476008] [2022-01-11 06:38:54,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046476008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:38:54,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:38:54,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 06:38:54,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653416567] [2022-01-11 06:38:54,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:38:54,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:38:54,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:38:54,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:38:54,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:38:54,456 INFO L87 Difference]: Start difference. First operand 1665 states and 2564 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:38:56,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:00,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:03,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:39:03,261 INFO L93 Difference]: Finished difference Result 6031 states and 9379 transitions. [2022-01-11 06:39:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:39:03,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 06:39:03,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:39:03,278 INFO L225 Difference]: With dead ends: 6031 [2022-01-11 06:39:03,279 INFO L226 Difference]: Without dead ends: 4496 [2022-01-11 06:39:03,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-01-11 06:39:03,282 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1230 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-01-11 06:39:03,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 1059 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 607 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-01-11 06:39:03,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2022-01-11 06:39:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 1951. [2022-01-11 06:39:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1950 states have (on average 1.54) internal successors, (3003), 1950 states have internal predecessors, (3003), 0 states have call successors, (0), 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 06:39:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 3003 transitions. [2022-01-11 06:39:04,054 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 3003 transitions. Word has length 64 [2022-01-11 06:39:04,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:39:04,054 INFO L470 AbstractCegarLoop]: Abstraction has 1951 states and 3003 transitions. [2022-01-11 06:39:04,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:39:04,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 3003 transitions. [2022-01-11 06:39:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 06:39:04,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:39:04,056 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] [2022-01-11 06:39:04,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 06:39:04,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:39:04,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:39:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash 710507875, now seen corresponding path program 1 times [2022-01-11 06:39:04,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:39:04,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170308504] [2022-01-11 06:39:04,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:39:04,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:39:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:39:04,432 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 06:39:04,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:39:04,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170308504] [2022-01-11 06:39:04,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170308504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:39:04,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:39:04,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:39:04,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833418818] [2022-01-11 06:39:04,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:39:04,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:39:04,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:39:04,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:39:04,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:39:04,434 INFO L87 Difference]: Start difference. First operand 1951 states and 3003 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:39:08,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:10,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:39:12,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []