/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-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:34:55,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:34:55,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:34:55,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:34:55,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:34:55,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:34:55,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:34:55,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:34:55,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:34:55,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:34:55,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:34:55,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:34:55,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:34:55,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:34:55,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:34:55,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:34:55,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:34:55,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:34:55,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:34:55,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:34:55,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:34:55,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:34:55,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:34:55,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:34:55,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 06:34:55,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 06:34:55,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 06:34:55,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 06:34:55,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 06:34:55,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 06:34:55,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 06:34:55,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 06:34:55,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 06:34:55,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 06:34:55,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 06:34:55,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 06:34:55,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 06:34:55,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 06:34:55,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:34:55,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:34:55,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:34:55,591 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 06:34:55,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:34:55,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:34:55,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:34:55,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:34:55,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:34:55,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:34:55,618 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:34:55,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:34:55,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:34:55,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:34:55,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:34:55,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:34:55,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:34:55,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:34:55,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:34:55,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:34:55,629 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:34:55,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:34:55,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:34:55,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:34:55,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:34:55,820 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:34:55,821 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:34:55,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-11 06:34:55,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d790a3f2/f66f66e1fc1341fb85ccc7c0508dd2cb/FLAG60915b058 [2022-01-11 06:34:56,284 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:34:56,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-01-11 06:34:56,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d790a3f2/f66f66e1fc1341fb85ccc7c0508dd2cb/FLAG60915b058 [2022-01-11 06:34:56,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d790a3f2/f66f66e1fc1341fb85ccc7c0508dd2cb [2022-01-11 06:34:56,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:34:56,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:34:56,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:34:56,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:34:56,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:34:56,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bb19e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56, skipping insertion in model container [2022-01-11 06:34:56,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:34:56,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:34:56,553 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-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8458,8471] [2022-01-11 06:34:56,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:34:56,613 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:34:56,652 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-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8458,8471] [2022-01-11 06:34:56,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:34:56,702 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:34:56,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56 WrapperNode [2022-01-11 06:34:56,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:34:56,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:34:56,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:34:56,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:34:56,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,772 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 775 [2022-01-11 06:34:56,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:34:56,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:34:56,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:34:56,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:34:56,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:34:56,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:34:56,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:34:56,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:34:56,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (1/1) ... [2022-01-11 06:34:56,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:34:56,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:34:56,841 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 06:34:56,847 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 06:34:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:34:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:34:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:34:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:34:56,970 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:34:56,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:34:57,477 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:34:57,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:34:57,487 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 06:34:57,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:34:57 BoogieIcfgContainer [2022-01-11 06:34:57,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:34:57,492 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:34:57,492 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:34:57,493 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:34:57,495 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:34:57" (1/1) ... [2022-01-11 06:34:57,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:34:57 BasicIcfg [2022-01-11 06:34:57,958 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:34:57,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:34:57,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:34:57,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:34:57,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:34:56" (1/4) ... [2022-01-11 06:34:57,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edf734d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:34:57, skipping insertion in model container [2022-01-11 06:34:57,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:34:56" (2/4) ... [2022-01-11 06:34:57,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edf734d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:34:57, skipping insertion in model container [2022-01-11 06:34:57,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:34:57" (3/4) ... [2022-01-11 06:34:57,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edf734d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:34:57, skipping insertion in model container [2022-01-11 06:34:57,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:34:57" (4/4) ... [2022-01-11 06:34:57,966 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.cTransformedIcfg [2022-01-11 06:34:57,970 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:34:57,970 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 06:34:58,008 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:34:58,017 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 06:34:58,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 06:34:58,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 213 states have (on average 1.7183098591549295) internal successors, (366), 214 states have internal predecessors, (366), 0 states have call successors, (0), 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 06:34:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 06:34:58,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:34:58,042 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] [2022-01-11 06:34:58,042 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:34:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:34:58,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1379621567, now seen corresponding path program 1 times [2022-01-11 06:34:58,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:34:58,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319200998] [2022-01-11 06:34:58,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:34:58,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:34:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:34:58,545 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 06:34:58,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:34:58,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319200998] [2022-01-11 06:34:58,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319200998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:34:58,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:34:58,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:34:58,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130048161] [2022-01-11 06:34:58,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:34:58,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:34:58,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:34:58,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:34:58,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:34:58,578 INFO L87 Difference]: Start difference. First operand has 215 states, 213 states have (on average 1.7183098591549295) internal successors, (366), 214 states have internal predecessors, (366), 0 states have call successors, (0), 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 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:34:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:34:59,238 INFO L93 Difference]: Finished difference Result 436 states and 718 transitions. [2022-01-11 06:34:59,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:34:59,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-11 06:34:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:34:59,258 INFO L225 Difference]: With dead ends: 436 [2022-01-11 06:34:59,259 INFO L226 Difference]: Without dead ends: 328 [2022-01-11 06:34:59,261 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 06:34:59,264 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 180 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 06:34:59,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 685 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 06:34:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-01-11 06:34:59,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 326. [2022-01-11 06:34:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.5076923076923077) internal successors, (490), 325 states have internal predecessors, (490), 0 states have call successors, (0), 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 06:34:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 490 transitions. [2022-01-11 06:34:59,344 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 490 transitions. Word has length 80 [2022-01-11 06:34:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:34:59,345 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 490 transitions. [2022-01-11 06:34:59,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:34:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 490 transitions. [2022-01-11 06:34:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:34:59,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:34:59,351 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] [2022-01-11 06:34:59,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:34:59,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:34:59,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:34:59,354 INFO L85 PathProgramCache]: Analyzing trace with hash 180418501, now seen corresponding path program 1 times [2022-01-11 06:34:59,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:34:59,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507156480] [2022-01-11 06:34:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:34:59,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:34:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:34:59,569 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 06:34:59,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:34:59,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507156480] [2022-01-11 06:34:59,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507156480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:34:59,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:34:59,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:34:59,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661092261] [2022-01-11 06:34:59,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:34:59,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:34:59,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:34:59,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:34:59,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:34:59,573 INFO L87 Difference]: Start difference. First operand 326 states and 490 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:34:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:34:59,714 INFO L93 Difference]: Finished difference Result 541 states and 830 transitions. [2022-01-11 06:34:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:34:59,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-11 06:34:59,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:34:59,716 INFO L225 Difference]: With dead ends: 541 [2022-01-11 06:34:59,716 INFO L226 Difference]: Without dead ends: 539 [2022-01-11 06:34:59,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 06:34:59,721 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 452 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:34:59,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 857 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:34:59,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-01-11 06:34:59,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 328. [2022-01-11 06:34:59,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.5045871559633028) internal successors, (492), 327 states have internal predecessors, (492), 0 states have call successors, (0), 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 06:34:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 492 transitions. [2022-01-11 06:34:59,765 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 492 transitions. Word has length 81 [2022-01-11 06:34:59,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:34:59,767 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 492 transitions. [2022-01-11 06:34:59,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:34:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 492 transitions. [2022-01-11 06:34:59,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 06:34:59,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:34:59,770 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] [2022-01-11 06:34:59,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:34:59,772 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:34:59,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:34:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1299016350, now seen corresponding path program 1 times [2022-01-11 06:34:59,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:34:59,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223344168] [2022-01-11 06:34:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:34:59,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:34:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:00,036 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 06:35:00,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:00,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223344168] [2022-01-11 06:35:00,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223344168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:00,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:00,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:35:00,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428014851] [2022-01-11 06:35:00,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:00,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:35:00,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:00,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:35:00,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:35:00,038 INFO L87 Difference]: Start difference. First operand 328 states and 492 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:01,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:01,092 INFO L93 Difference]: Finished difference Result 2603 states and 4084 transitions. [2022-01-11 06:35:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 06:35:01,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-11 06:35:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:01,102 INFO L225 Difference]: With dead ends: 2603 [2022-01-11 06:35:01,103 INFO L226 Difference]: Without dead ends: 2355 [2022-01-11 06:35:01,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-01-11 06:35:01,110 INFO L933 BasicCegarLoop]: 864 mSDtfsCounter, 1996 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 3782 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:01,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1996 Valid, 3782 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 06:35:01,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2022-01-11 06:35:01,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 1282. [2022-01-11 06:35:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 1.555815768930523) internal successors, (1993), 1281 states have internal predecessors, (1993), 0 states have call successors, (0), 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 06:35:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1993 transitions. [2022-01-11 06:35:01,305 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1993 transitions. Word has length 82 [2022-01-11 06:35:01,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:01,306 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 1993 transitions. [2022-01-11 06:35:01,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:01,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1993 transitions. [2022-01-11 06:35:01,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 06:35:01,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:01,308 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] [2022-01-11 06:35:01,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:35:01,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:01,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:01,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1933428980, now seen corresponding path program 1 times [2022-01-11 06:35:01,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:01,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506034883] [2022-01-11 06:35:01,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:01,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:01,531 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 06:35:01,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:01,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506034883] [2022-01-11 06:35:01,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506034883] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:01,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:01,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:35:01,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976115532] [2022-01-11 06:35:01,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:01,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:35:01,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:01,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:35:01,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:35:01,534 INFO L87 Difference]: Start difference. First operand 1282 states and 1993 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:01,866 INFO L93 Difference]: Finished difference Result 2965 states and 4662 transitions. [2022-01-11 06:35:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:35:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-11 06:35:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:01,873 INFO L225 Difference]: With dead ends: 2965 [2022-01-11 06:35:01,873 INFO L226 Difference]: Without dead ends: 2091 [2022-01-11 06:35:01,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:35:01,880 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 321 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:01,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 636 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:35:01,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2022-01-11 06:35:02,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2079. [2022-01-11 06:35:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2078 states have (on average 1.56111645813282) internal successors, (3244), 2078 states have internal predecessors, (3244), 0 states have call successors, (0), 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 06:35:02,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 3244 transitions. [2022-01-11 06:35:02,206 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 3244 transitions. Word has length 83 [2022-01-11 06:35:02,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:02,207 INFO L470 AbstractCegarLoop]: Abstraction has 2079 states and 3244 transitions. [2022-01-11 06:35:02,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 3244 transitions. [2022-01-11 06:35:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:35:02,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:02,208 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] [2022-01-11 06:35:02,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 06:35:02,209 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:02,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1821934155, now seen corresponding path program 1 times [2022-01-11 06:35:02,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:02,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666192716] [2022-01-11 06:35:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:02,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:02,465 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 06:35:02,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:02,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666192716] [2022-01-11 06:35:02,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666192716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:02,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:02,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:35:02,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608944796] [2022-01-11 06:35:02,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:02,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:35:02,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:02,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:35:02,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:35:02,467 INFO L87 Difference]: Start difference. First operand 2079 states and 3244 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:05,721 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 06:35:07,890 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 06:35:11,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:11,761 INFO L93 Difference]: Finished difference Result 14536 states and 22939 transitions. [2022-01-11 06:35:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 06:35:11,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-11 06:35:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:11,802 INFO L225 Difference]: With dead ends: 14536 [2022-01-11 06:35:11,802 INFO L226 Difference]: Without dead ends: 12564 [2022-01-11 06:35:11,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-11 06:35:11,808 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1843 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:11,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1843 Valid, 1106 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 786 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-01-11 06:35:11,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12564 states. [2022-01-11 06:35:13,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12564 to 7376. [2022-01-11 06:35:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7376 states, 7375 states have (on average 1.567457627118644) internal successors, (11560), 7375 states have internal predecessors, (11560), 0 states have call successors, (0), 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 06:35:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7376 states to 7376 states and 11560 transitions. [2022-01-11 06:35:13,744 INFO L78 Accepts]: Start accepts. Automaton has 7376 states and 11560 transitions. Word has length 84 [2022-01-11 06:35:13,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:13,744 INFO L470 AbstractCegarLoop]: Abstraction has 7376 states and 11560 transitions. [2022-01-11 06:35:13,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7376 states and 11560 transitions. [2022-01-11 06:35:13,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:35:13,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:13,747 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] [2022-01-11 06:35:13,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 06:35:13,747 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:13,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash 880829306, now seen corresponding path program 1 times [2022-01-11 06:35:13,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:13,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835655210] [2022-01-11 06:35:13,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:13,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:13,850 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 06:35:13,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:13,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835655210] [2022-01-11 06:35:13,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835655210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:13,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:13,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:35:13,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033408848] [2022-01-11 06:35:13,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:13,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:35:13,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:13,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:35:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:35:13,852 INFO L87 Difference]: Start difference. First operand 7376 states and 11560 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:16,574 INFO L93 Difference]: Finished difference Result 18004 states and 28232 transitions. [2022-01-11 06:35:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:35:16,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-11 06:35:16,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:16,608 INFO L225 Difference]: With dead ends: 18004 [2022-01-11 06:35:16,608 INFO L226 Difference]: Without dead ends: 11042 [2022-01-11 06:35:16,615 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 06:35:16,616 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 211 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:16,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 580 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:35:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-01-11 06:35:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 11007. [2022-01-11 06:35:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11007 states, 11006 states have (on average 1.5485189896420135) internal successors, (17043), 11006 states have internal predecessors, (17043), 0 states have call successors, (0), 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 06:35:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11007 states to 11007 states and 17043 transitions. [2022-01-11 06:35:19,398 INFO L78 Accepts]: Start accepts. Automaton has 11007 states and 17043 transitions. Word has length 84 [2022-01-11 06:35:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:19,399 INFO L470 AbstractCegarLoop]: Abstraction has 11007 states and 17043 transitions. [2022-01-11 06:35:19,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:19,399 INFO L276 IsEmpty]: Start isEmpty. Operand 11007 states and 17043 transitions. [2022-01-11 06:35:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:35:19,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:19,403 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] [2022-01-11 06:35:19,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 06:35:19,403 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:19,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1661084715, now seen corresponding path program 1 times [2022-01-11 06:35:19,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:19,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205899709] [2022-01-11 06:35:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:19,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:19,487 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 06:35:19,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:19,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205899709] [2022-01-11 06:35:19,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205899709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:19,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:19,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:35:19,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150390535] [2022-01-11 06:35:19,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:19,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:35:19,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:19,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:35:19,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:35:19,489 INFO L87 Difference]: Start difference. First operand 11007 states and 17043 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:24,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:24,040 INFO L93 Difference]: Finished difference Result 29448 states and 45597 transitions. [2022-01-11 06:35:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:35:24,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-11 06:35:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:24,117 INFO L225 Difference]: With dead ends: 29448 [2022-01-11 06:35:24,117 INFO L226 Difference]: Without dead ends: 19144 [2022-01-11 06:35:24,128 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 06:35:24,129 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 198 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:24,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 576 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:35:24,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19144 states. [2022-01-11 06:35:28,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19144 to 19107. [2022-01-11 06:35:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19107 states, 19106 states have (on average 1.5291008060295195) internal successors, (29215), 19106 states have internal predecessors, (29215), 0 states have call successors, (0), 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 06:35:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19107 states to 19107 states and 29215 transitions. [2022-01-11 06:35:28,949 INFO L78 Accepts]: Start accepts. Automaton has 19107 states and 29215 transitions. Word has length 84 [2022-01-11 06:35:28,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:28,950 INFO L470 AbstractCegarLoop]: Abstraction has 19107 states and 29215 transitions. [2022-01-11 06:35:28,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19107 states and 29215 transitions. [2022-01-11 06:35:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:35:28,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:28,956 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] [2022-01-11 06:35:28,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 06:35:28,956 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1875966311, now seen corresponding path program 1 times [2022-01-11 06:35:28,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:28,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884472458] [2022-01-11 06:35:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:28,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:29,042 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 06:35:29,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:29,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884472458] [2022-01-11 06:35:29,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884472458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:29,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:29,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:35:29,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039296493] [2022-01-11 06:35:29,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:29,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:35:29,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:29,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:35:29,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:35:29,043 INFO L87 Difference]: Start difference. First operand 19107 states and 29215 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:37,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:37,605 INFO L93 Difference]: Finished difference Result 52661 states and 80357 transitions. [2022-01-11 06:35:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:35:37,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-11 06:35:37,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:37,676 INFO L225 Difference]: With dead ends: 52661 [2022-01-11 06:35:37,677 INFO L226 Difference]: Without dead ends: 35153 [2022-01-11 06:35:37,693 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 06:35:37,694 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 185 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:37,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 576 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:35:37,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35153 states. [2022-01-11 06:35:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35153 to 35115. [2022-01-11 06:35:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35115 states, 35114 states have (on average 1.505126160505781) internal successors, (52851), 35114 states have internal predecessors, (52851), 0 states have call successors, (0), 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 06:35:46,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35115 states to 35115 states and 52851 transitions. [2022-01-11 06:35:46,838 INFO L78 Accepts]: Start accepts. Automaton has 35115 states and 52851 transitions. Word has length 84 [2022-01-11 06:35:46,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:35:46,838 INFO L470 AbstractCegarLoop]: Abstraction has 35115 states and 52851 transitions. [2022-01-11 06:35:46,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:46,838 INFO L276 IsEmpty]: Start isEmpty. Operand 35115 states and 52851 transitions. [2022-01-11 06:35:46,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:35:46,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:35:46,851 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] [2022-01-11 06:35:46,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 06:35:46,851 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:35:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:35:46,852 INFO L85 PathProgramCache]: Analyzing trace with hash -190303711, now seen corresponding path program 1 times [2022-01-11 06:35:46,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:35:46,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166443558] [2022-01-11 06:35:46,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:35:46,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:35:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:35:46,929 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 06:35:46,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:35:46,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166443558] [2022-01-11 06:35:46,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166443558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:35:46,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:35:46,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:35:46,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499514134] [2022-01-11 06:35:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:35:46,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:35:46,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:35:46,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:35:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:35:46,930 INFO L87 Difference]: Start difference. First operand 35115 states and 52851 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:35:56,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:35:56,117 INFO L93 Difference]: Finished difference Result 45071 states and 67673 transitions. [2022-01-11 06:35:56,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:35:56,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-11 06:35:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:35:56,176 INFO L225 Difference]: With dead ends: 45071 [2022-01-11 06:35:56,176 INFO L226 Difference]: Without dead ends: 36077 [2022-01-11 06:35:56,191 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 06:35:56,192 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 176 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:35:56,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 579 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:35:56,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36077 states. [2022-01-11 06:36:05,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36077 to 36075. [2022-01-11 06:36:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36075 states, 36074 states have (on average 1.4829239895769806) internal successors, (53495), 36074 states have internal predecessors, (53495), 0 states have call successors, (0), 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 06:36:05,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36075 states to 36075 states and 53495 transitions. [2022-01-11 06:36:05,718 INFO L78 Accepts]: Start accepts. Automaton has 36075 states and 53495 transitions. Word has length 84 [2022-01-11 06:36:05,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:36:05,718 INFO L470 AbstractCegarLoop]: Abstraction has 36075 states and 53495 transitions. [2022-01-11 06:36:05,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:36:05,718 INFO L276 IsEmpty]: Start isEmpty. Operand 36075 states and 53495 transitions. [2022-01-11 06:36:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:36:05,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:36:05,731 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] [2022-01-11 06:36:05,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 06:36:05,731 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:36:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:36:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1924151370, now seen corresponding path program 1 times [2022-01-11 06:36:05,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:36:05,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849637905] [2022-01-11 06:36:05,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:36:05,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:36:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:36:05,826 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 06:36:05,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:36:05,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849637905] [2022-01-11 06:36:05,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849637905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:36:05,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:36:05,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:36:05,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28303018] [2022-01-11 06:36:05,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:36:05,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:36:05,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:36:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:36:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:36:05,827 INFO L87 Difference]: Start difference. First operand 36075 states and 53495 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)