/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_LAZY.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 15:55:19,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 15:55:19,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 15:55:19,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 15:55:19,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 15:55:19,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 15:55:19,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 15:55:19,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 15:55:19,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 15:55:19,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 15:55:19,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 15:55:19,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 15:55:19,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 15:55:19,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 15:55:19,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 15:55:19,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 15:55:19,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 15:55:19,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 15:55:19,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 15:55:19,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 15:55:19,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 15:55:19,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 15:55:19,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 15:55:19,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 15:55:19,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 15:55:19,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 15:55:19,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 15:55:19,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 15:55:19,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 15:55:19,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 15:55:19,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 15:55:19,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 15:55:19,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 15:55:19,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 15:55:19,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 15:55:19,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 15:55:19,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 15:55:19,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 15:55:19,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 15:55:19,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 15:55:19,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 15:55:19,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 15:55:19,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 15:55:19,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 15:55:19,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 15:55:19,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 15:55:19,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 15:55:19,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 15:55:19,587 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 15:55:19,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 15:55:19,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 15:55:19,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 15:55:19,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 15:55:19,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:55:19,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 15:55:19,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 15:55:19,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 15:55:19,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 15:55:19,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 15:55:19,590 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 15:55:19,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 15:55:19,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 15:55:19,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 15:55:19,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 15:55:19,783 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 15:55:19,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-01-10 15:55:19,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862565a69/2c8db77d2990406686a29e81d2e65c7e/FLAG6e83a3037 [2022-01-10 15:55:20,246 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 15:55:20,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-01-10 15:55:20,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862565a69/2c8db77d2990406686a29e81d2e65c7e/FLAG6e83a3037 [2022-01-10 15:55:20,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862565a69/2c8db77d2990406686a29e81d2e65c7e [2022-01-10 15:55:20,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 15:55:20,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 15:55:20,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 15:55:20,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 15:55:20,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 15:55:20,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64923e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20, skipping insertion in model container [2022-01-10 15:55:20,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 15:55:20,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:55:20,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-01-10 15:55:20,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:55:20,639 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 15:55:20,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:55:20,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-01-10 15:55:20,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:55:20,750 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 15:55:20,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c[74696,74709] [2022-01-10 15:55:20,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:55:20,865 INFO L208 MainTranslator]: Completed translation [2022-01-10 15:55:20,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20 WrapperNode [2022-01-10 15:55:20,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 15:55:20,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 15:55:20,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 15:55:20,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 15:55:20,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,929 INFO L137 Inliner]: procedures = 41, calls = 248, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 787 [2022-01-10 15:55:20,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 15:55:20,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 15:55:20,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 15:55:20,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 15:55:20,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 15:55:20,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 15:55:20,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 15:55:20,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 15:55:20,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (1/1) ... [2022-01-10 15:55:20,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:55:21,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:55:21,014 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) [2022-01-10 15:55:21,021 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 [2022-01-10 15:55:21,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 15:55:21,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 15:55:21,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 15:55:21,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 15:55:21,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 15:55:21,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 15:55:21,194 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 15:55:21,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 15:55:21,205 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:55:33,451 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-10 15:55:33,451 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-10 15:55:33,451 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 15:55:33,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 15:55:33,456 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 15:55:33,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:55:33 BoogieIcfgContainer [2022-01-10 15:55:33,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 15:55:33,458 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 15:55:33,458 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 15:55:33,459 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 15:55:33,461 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:55:33" (1/1) ... [2022-01-10 15:55:33,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:55:33 BasicIcfg [2022-01-10 15:55:33,682 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 15:55:33,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 15:55:33,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 15:55:33,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 15:55:33,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:55:20" (1/4) ... [2022-01-10 15:55:33,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343774b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:55:33, skipping insertion in model container [2022-01-10 15:55:33,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:20" (2/4) ... [2022-01-10 15:55:33,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343774b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:55:33, skipping insertion in model container [2022-01-10 15:55:33,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:55:33" (3/4) ... [2022-01-10 15:55:33,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343774b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:55:33, skipping insertion in model container [2022-01-10 15:55:33,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:55:33" (4/4) ... [2022-01-10 15:55:33,687 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.cTransformedIcfg [2022-01-10 15:55:33,691 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 15:55:33,691 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 15:55:33,724 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 15:55:33,730 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 [2022-01-10 15:55:33,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 15:55:33,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 149 states have (on average 1.7181208053691275) internal successors, (256), 150 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 15:55:33,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:55:33,755 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] [2022-01-10 15:55:33,756 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:55:33,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:55:33,759 INFO L85 PathProgramCache]: Analyzing trace with hash -414508144, now seen corresponding path program 1 times [2022-01-10 15:55:33,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:55:33,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365443338] [2022-01-10 15:55:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:55:33,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:55:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:55:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:55:34,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:55:34,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365443338] [2022-01-10 15:55:34,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365443338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:55:34,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:55:34,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:55:34,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287489056] [2022-01-10 15:55:34,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:55:34,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:55:34,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:55:34,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:55:34,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:55:34,460 INFO L87 Difference]: Start difference. First operand has 151 states, 149 states have (on average 1.7181208053691275) internal successors, (256), 150 states have internal predecessors, (256), 0 states have call successors, (0), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:34,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:55:34,610 INFO L93 Difference]: Finished difference Result 430 states and 734 transitions. [2022-01-10 15:55:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:55:34,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-10 15:55:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:55:34,619 INFO L225 Difference]: With dead ends: 430 [2022-01-10 15:55:34,619 INFO L226 Difference]: Without dead ends: 263 [2022-01-10 15:55:34,621 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 [2022-01-10 15:55:34,623 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 194 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:55:34,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 462 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:55:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-01-10 15:55:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-01-10 15:55:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.515267175572519) internal successors, (397), 262 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:34,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 397 transitions. [2022-01-10 15:55:34,657 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 397 transitions. Word has length 45 [2022-01-10 15:55:34,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:55:34,657 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 397 transitions. [2022-01-10 15:55:34,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:34,657 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 397 transitions. [2022-01-10 15:55:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 15:55:34,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:55:34,659 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:55:34,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 15:55:34,660 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:55:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:55:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2126556252, now seen corresponding path program 1 times [2022-01-10 15:55:34,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:55:34,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575438055] [2022-01-10 15:55:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:55:34,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:55:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:55:35,080 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:55:35,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:55:35,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575438055] [2022-01-10 15:55:35,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575438055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:55:35,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:55:35,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:55:35,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887003928] [2022-01-10 15:55:35,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:55:35,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:55:35,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:55:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:55:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:55:35,083 INFO L87 Difference]: Start difference. First operand 263 states and 397 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:37,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:41,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:43,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:46,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:50,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:52,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:54,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:56,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:58,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:00,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:02,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:04,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:11,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:12,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:56:17,367 INFO L93 Difference]: Finished difference Result 497 states and 760 transitions. [2022-01-10 15:56:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:56:17,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-01-10 15:56:17,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:56:17,371 INFO L225 Difference]: With dead ends: 497 [2022-01-10 15:56:17,371 INFO L226 Difference]: Without dead ends: 369 [2022-01-10 15:56:17,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 15:56:17,373 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 97 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 11 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2022-01-10 15:56:17,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 679 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 274 Invalid, 11 Unknown, 0 Unchecked, 42.2s Time] [2022-01-10 15:56:17,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-01-10 15:56:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 302. [2022-01-10 15:56:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.558139534883721) internal successors, (469), 301 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:56:17,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 469 transitions. [2022-01-10 15:56:17,385 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 469 transitions. Word has length 62 [2022-01-10 15:56:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:56:17,385 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 469 transitions. [2022-01-10 15:56:17,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:56:17,385 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 469 transitions. [2022-01-10 15:56:17,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 15:56:17,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:56:17,387 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:56:17,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 15:56:17,387 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:56:17,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:56:17,388 INFO L85 PathProgramCache]: Analyzing trace with hash -586479490, now seen corresponding path program 1 times [2022-01-10 15:56:17,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:56:17,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454478370] [2022-01-10 15:56:17,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:56:17,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:56:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:56:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:56:17,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:56:17,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454478370] [2022-01-10 15:56:17,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454478370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:56:17,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:56:17,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:56:17,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789960662] [2022-01-10 15:56:17,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:56:17,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:56:17,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:56:17,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:56:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:56:17,762 INFO L87 Difference]: Start difference. First operand 302 states and 469 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:56:19,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:23,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:24,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:27,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:29,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:32,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:36,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:38,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []