/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/openssl/s3_srvr.blast.15.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:34:37,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:34:37,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:34:37,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 03:34:37,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 03:34:37,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 03:34:37,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 03:34:37,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 03:34:37,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 03:34:37,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 03:34:37,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 03:34:37,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 03:34:38,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:34:38,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:34:38,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:34:38,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:34:38,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:34:38,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:34:38,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:34:38,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:34:38,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:34:38,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:34:38,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:34:38,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:34:38,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 03:34:38,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 03:34:38,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 03:34:38,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 03:34:38,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 03:34:38,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 03:34:38,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 03:34:38,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 03:34:38,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 03:34:38,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 03:34:38,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 03:34:38,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 03:34:38,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 03:34:38,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 03:34:38,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:34:38,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:34:38,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:34:38,031 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 03:34:38,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:34:38,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:34:38,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:34:38,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:34:38,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:34:38,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:34:38,062 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:34:38,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:34:38,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:34:38,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:34:38,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:34:38,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:34:38,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:34:38,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:34:38,063 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:34:38,064 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:34:38,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:34:38,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:34:38,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:34:38,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:34:38,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:34:38,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:34:38,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:34:38,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:34:38,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:34:38,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:34:38,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:34:38,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:34:38,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:34:38,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:34:38,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:34:38,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:34:38,068 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:34:38,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:34:38,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:34:38,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:34:38,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:34:38,342 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:34:38,344 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:34:38,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-01-11 03:34:38,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9a8a882/b66fcf5a04464103aa9b5e9416df8e1c/FLAG45e8d34bf [2022-01-11 03:34:38,847 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:34:38,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-01-11 03:34:38,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9a8a882/b66fcf5a04464103aa9b5e9416df8e1c/FLAG45e8d34bf [2022-01-11 03:34:39,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9a8a882/b66fcf5a04464103aa9b5e9416df8e1c [2022-01-11 03:34:39,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:34:39,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:34:39,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:34:39,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:34:39,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:34:39,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:39,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b66f708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39, skipping insertion in model container [2022-01-11 03:34:39,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:39,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:34:39,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:34:39,720 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.15.i.cil-2.c[75833,75846] [2022-01-11 03:34:39,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:34:39,754 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 03:34:39,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:34:39,870 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.15.i.cil-2.c[75833,75846] [2022-01-11 03:34:39,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:34:39,879 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:34:39,972 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.15.i.cil-2.c[75833,75846] [2022-01-11 03:34:39,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:34:39,998 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:34:39,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39 WrapperNode [2022-01-11 03:34:39,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:34:39,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:34:40,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:34:40,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:34:40,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,077 INFO L137 Inliner]: procedures = 41, calls = 248, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 793 [2022-01-11 03:34:40,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:34:40,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:34:40,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:34:40,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:34:40,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:34:40,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:34:40,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:34:40,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:34:40,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (1/1) ... [2022-01-11 03:34:40,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:34:40,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:34:40,216 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 03:34:40,237 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 03:34:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-11 03:34:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:34:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:34:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-11 03:34:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-11 03:34:40,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-11 03:34:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 03:34:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-11 03:34:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 03:34:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:34:40,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:34:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-11 03:34:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 03:34:40,370 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:34:40,371 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:34:40,387 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:34:52,633 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-11 03:34:52,633 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-11 03:34:52,633 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:34:52,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:34:52,642 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 03:34:52,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:34:52 BoogieIcfgContainer [2022-01-11 03:34:52,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:34:52,645 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:34:52,645 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:34:52,646 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:34:52,649 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:34:52" (1/1) ... [2022-01-11 03:34:53,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:34:53 BasicIcfg [2022-01-11 03:34:53,003 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:34:53,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:34:53,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:34:53,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:34:53,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:34:39" (1/4) ... [2022-01-11 03:34:53,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c68ff52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:34:53, skipping insertion in model container [2022-01-11 03:34:53,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:34:39" (2/4) ... [2022-01-11 03:34:53,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c68ff52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:34:53, skipping insertion in model container [2022-01-11 03:34:53,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:34:52" (3/4) ... [2022-01-11 03:34:53,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c68ff52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:34:53, skipping insertion in model container [2022-01-11 03:34:53,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:34:53" (4/4) ... [2022-01-11 03:34:53,011 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.cTransformedIcfg [2022-01-11 03:34:53,017 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:34:53,018 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 03:34:53,067 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:34:53,074 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 03:34:53,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 03:34:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 152 states have (on average 1.7236842105263157) internal successors, (262), 153 states have internal predecessors, (262), 0 states have call successors, (0), 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 03:34:53,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 03:34:53,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:34:53,102 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] [2022-01-11 03:34:53,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:34:53,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:34:53,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1126862665, now seen corresponding path program 1 times [2022-01-11 03:34:53,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:34:53,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943955462] [2022-01-11 03:34:53,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:34:53,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:34:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:34:54,011 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 03:34:54,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:34:54,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943955462] [2022-01-11 03:34:54,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943955462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:34:54,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:34:54,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:34:54,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861852795] [2022-01-11 03:34:54,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:34:54,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:34:54,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:34:54,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:34:54,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:34:54,042 INFO L87 Difference]: Start difference. First operand has 154 states, 152 states have (on average 1.7236842105263157) internal successors, (262), 153 states have internal predecessors, (262), 0 states have call successors, (0), 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 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 03:34:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:34:54,267 INFO L93 Difference]: Finished difference Result 439 states and 752 transitions. [2022-01-11 03:34:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:34:54,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-11 03:34:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:34:54,279 INFO L225 Difference]: With dead ends: 439 [2022-01-11 03:34:54,279 INFO L226 Difference]: Without dead ends: 269 [2022-01-11 03:34:54,282 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 03:34:54,285 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 196 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 03:34:54,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 465 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 03:34:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-01-11 03:34:54,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-01-11 03:34:54,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 268 states have (on average 1.5149253731343284) internal successors, (406), 268 states have internal predecessors, (406), 0 states have call successors, (0), 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 03:34:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 406 transitions. [2022-01-11 03:34:54,361 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 406 transitions. Word has length 46 [2022-01-11 03:34:54,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:34:54,363 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 406 transitions. [2022-01-11 03:34:54,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 03:34:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 406 transitions. [2022-01-11 03:34:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 03:34:54,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:34:54,366 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] [2022-01-11 03:34:54,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:34:54,366 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:34:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:34:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1708894706, now seen corresponding path program 1 times [2022-01-11 03:34:54,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:34:54,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617054904] [2022-01-11 03:34:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:34:54,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:34:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:34:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:34:55,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:34:55,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617054904] [2022-01-11 03:34:55,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617054904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:34:55,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:34:55,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:34:55,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093767521] [2022-01-11 03:34:55,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:34:55,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:34:55,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:34:55,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:34:55,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:34:55,049 INFO L87 Difference]: Start difference. First operand 269 states and 406 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) [2022-01-11 03:34:57,084 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 [] [2022-01-11 03:34:59,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:01,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:03,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:06,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:10,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:12,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:14,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:16,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:18,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:24,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:25,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:27,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:30,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:35:30,860 INFO L93 Difference]: Finished difference Result 508 states and 779 transitions. [2022-01-11 03:35:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:35:30,864 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 63 [2022-01-11 03:35:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:35:30,867 INFO L225 Difference]: With dead ends: 508 [2022-01-11 03:35:30,868 INFO L226 Difference]: Without dead ends: 377 [2022-01-11 03:35:30,868 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 [2022-01-11 03:35:30,870 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 101 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.7s IncrementalHoareTripleChecker+Time [2022-01-11 03:35:30,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 701 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 279 Invalid, 5 Unknown, 0 Unchecked, 35.7s Time] [2022-01-11 03:35:30,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-01-11 03:35:30,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 308. [2022-01-11 03:35:30,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.5570032573289903) internal successors, (478), 307 states have internal predecessors, (478), 0 states have call successors, (0), 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 03:35:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 478 transitions. [2022-01-11 03:35:30,913 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 478 transitions. Word has length 63 [2022-01-11 03:35:30,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:35:30,913 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 478 transitions. [2022-01-11 03:35:30,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-01-11 03:35:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 478 transitions. [2022-01-11 03:35:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 03:35:30,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:35:30,917 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, 1] [2022-01-11 03:35:30,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:35:30,917 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:35:30,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:35:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash -348796311, now seen corresponding path program 1 times [2022-01-11 03:35:30,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:35:30,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343366075] [2022-01-11 03:35:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:35:30,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:35:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:35:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:35:31,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:35:31,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343366075] [2022-01-11 03:35:31,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343366075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:35:31,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:35:31,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:35:31,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504994556] [2022-01-11 03:35:31,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:35:31,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:35:31,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:35:31,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:35:31,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:35:31,311 INFO L87 Difference]: Start difference. First operand 308 states and 478 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:35:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:35:31,817 INFO L93 Difference]: Finished difference Result 643 states and 1025 transitions. [2022-01-11 03:35:31,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:35:31,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 03:35:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:35:31,820 INFO L225 Difference]: With dead ends: 643 [2022-01-11 03:35:31,820 INFO L226 Difference]: Without dead ends: 473 [2022-01-11 03:35:31,821 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 03:35:31,822 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 144 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 03:35:31,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 575 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 03:35:31,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-01-11 03:35:31,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2022-01-11 03:35:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.5572033898305084) internal successors, (735), 472 states have internal predecessors, (735), 0 states have call successors, (0), 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 03:35:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 735 transitions. [2022-01-11 03:35:31,844 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 735 transitions. Word has length 64 [2022-01-11 03:35:31,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:35:31,844 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 735 transitions. [2022-01-11 03:35:31,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:35:31,845 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 735 transitions. [2022-01-11 03:35:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 03:35:31,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:35:31,847 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-11 03:35:31,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 03:35:31,848 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:35:31,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:35:31,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1475489744, now seen corresponding path program 1 times [2022-01-11 03:35:31,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:35:31,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042280438] [2022-01-11 03:35:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:35:31,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:35:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:35:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-11 03:35:32,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:35:32,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042280438] [2022-01-11 03:35:32,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042280438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:35:32,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:35:32,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:35:32,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348140118] [2022-01-11 03:35:32,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:35:32,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:35:32,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:35:32,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:35:32,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:35:32,461 INFO L87 Difference]: Start difference. First operand 473 states and 735 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:35:34,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:36,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:38,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:40,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:42,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:46,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:49,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:35:52,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []