/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.12.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 15:55:54,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 15:55:54,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 15:55:54,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 15:55:54,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 15:55:54,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 15:55:54,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 15:55:54,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 15:55:54,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 15:55:54,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 15:55:54,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 15:55:54,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 15:55:54,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 15:55:54,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 15:55:54,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 15:55:54,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 15:55:54,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 15:55:54,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 15:55:54,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 15:55:54,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 15:55:54,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 15:55:54,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 15:55:54,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 15:55:54,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 15:55:55,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 15:55:55,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 15:55:55,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 15:55:55,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 15:55:55,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 15:55:55,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 15:55:55,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 15:55:55,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 15:55:55,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 15:55:55,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 15:55:55,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 15:55:55,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 15:55:55,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 15:55:55,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 15:55:55,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 15:55:55,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 15:55:55,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 15:55:55,009 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 15:55:55,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 15:55:55,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 15:55:55,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 15:55:55,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 15:55:55,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 15:55:55,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 15:55:55,041 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 15:55:55,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 15:55:55,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 15:55:55,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 15:55:55,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 15:55:55,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 15:55:55,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 15:55:55,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 15:55:55,043 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 15:55:55,043 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 15:55:55,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 15:55:55,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:55:55,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 15:55:55,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 15:55:55,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 15:55:55,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 15:55:55,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 15:55:55,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 15:55:55,059 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 15:55:55,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 15:55:55,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 15:55:55,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 15:55:55,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 15:55:55,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 15:55:55,314 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 15:55:55,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-01-10 15:55:55,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7338ee0ac/b1b5b4a1f763407b8e2ceb3f3bc87802/FLAG328e83c20 [2022-01-10 15:55:55,873 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 15:55:55,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-01-10 15:55:55,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7338ee0ac/b1b5b4a1f763407b8e2ceb3f3bc87802/FLAG328e83c20 [2022-01-10 15:55:56,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7338ee0ac/b1b5b4a1f763407b8e2ceb3f3bc87802 [2022-01-10 15:55:56,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 15:55:56,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 15:55:56,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 15:55:56,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 15:55:56,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 15:55:56,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:55:56" (1/1) ... [2022-01-10 15:55:56,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4252d9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:56, skipping insertion in model container [2022-01-10 15:55:56,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:55:56" (1/1) ... [2022-01-10 15:55:56,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 15:55:56,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:55:56,900 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.12.i.cil-1.c[75166,75179] [2022-01-10 15:55:56,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:55:56,933 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 15:55:56,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:55:57,037 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.12.i.cil-1.c[75166,75179] [2022-01-10 15:55:57,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:55:57,047 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 15:55:57,119 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.12.i.cil-1.c[75166,75179] [2022-01-10 15:55:57,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:55:57,134 INFO L208 MainTranslator]: Completed translation [2022-01-10 15:55:57,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57 WrapperNode [2022-01-10 15:55:57,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 15:55:57,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 15:55:57,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 15:55:57,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 15:55:57,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,212 INFO L137 Inliner]: procedures = 41, calls = 248, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 790 [2022-01-10 15:55:57,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 15:55:57,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 15:55:57,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 15:55:57,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 15:55:57,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 15:55:57,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 15:55:57,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 15:55:57,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 15:55:57,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (1/1) ... [2022-01-10 15:55:57,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:55:57,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:55:57,322 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 15:55:57,330 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 15:55:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 15:55:57,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 15:55:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 15:55:57,445 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 15:55:57,446 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 15:55:57,456 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:56:10,846 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-10 15:56:10,846 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-10 15:56:10,847 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 15:56:10,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 15:56:10,852 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 15:56:10,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:56:10 BoogieIcfgContainer [2022-01-10 15:56:10,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 15:56:10,854 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 15:56:10,854 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 15:56:10,854 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 15:56:10,856 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:56:10" (1/1) ... [2022-01-10 15:56:10,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:56:10 BasicIcfg [2022-01-10 15:56:10,998 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 15:56:10,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 15:56:10,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 15:56:11,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 15:56:11,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:55:56" (1/4) ... [2022-01-10 15:56:11,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311376da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:56:11, skipping insertion in model container [2022-01-10 15:56:11,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:55:57" (2/4) ... [2022-01-10 15:56:11,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311376da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:56:11, skipping insertion in model container [2022-01-10 15:56:11,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:56:10" (3/4) ... [2022-01-10 15:56:11,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311376da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:56:11, skipping insertion in model container [2022-01-10 15:56:11,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:56:10" (4/4) ... [2022-01-10 15:56:11,003 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-1.cTransformedIcfg [2022-01-10 15:56:11,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 15:56:11,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 15:56:11,040 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 15:56:11,046 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 15:56:11,046 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 15:56:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 150 states have (on average 1.72) internal successors, (258), 151 states have internal predecessors, (258), 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 15:56:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 15:56:11,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:56:11,069 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] [2022-01-10 15:56:11,069 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:56:11,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:56:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1041511774, now seen corresponding path program 1 times [2022-01-10 15:56:11,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:56:11,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529927295] [2022-01-10 15:56:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:56:11,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:56:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:56:11,932 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 15:56:11,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:56:11,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529927295] [2022-01-10 15:56:11,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529927295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:56:11,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:56:11,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:56:11,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786782425] [2022-01-10 15:56:11,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:56:11,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:56:11,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:56:11,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:56:11,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:56:11,964 INFO L87 Difference]: Start difference. First operand has 152 states, 150 states have (on average 1.72) internal successors, (258), 151 states have internal predecessors, (258), 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 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 15:56:13,996 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 15:56:16,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:19,831 WARN L534 Checker$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 15:56:21,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:24,100 WARN L534 Checker$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 15:56:26,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:32,538 WARN L534 Checker$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 15:56:36,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:41,791 WARN L534 Checker$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 15:56:42,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:56:42,114 INFO L93 Difference]: Finished difference Result 403 states and 687 transitions. [2022-01-10 15:56:42,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:56:42,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2022-01-10 15:56:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:56:42,127 INFO L225 Difference]: With dead ends: 403 [2022-01-10 15:56:42,127 INFO L226 Difference]: Without dead ends: 238 [2022-01-10 15:56:42,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 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 15:56:42,138 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 121 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 13 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:56:42,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 479 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 252 Invalid, 9 Unknown, 0 Unchecked, 30.0s Time] [2022-01-10 15:56:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-01-10 15:56:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 170. [2022-01-10 15:56:42,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.6153846153846154) internal successors, (273), 169 states have internal predecessors, (273), 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 15:56:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 273 transitions. [2022-01-10 15:56:42,171 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 273 transitions. Word has length 43 [2022-01-10 15:56:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:56:42,171 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 273 transitions. [2022-01-10 15:56:42,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 15:56:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 273 transitions. [2022-01-10 15:56:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 15:56:42,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:56:42,173 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] [2022-01-10 15:56:42,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 15:56:42,173 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:56:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:56:42,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2071923186, now seen corresponding path program 1 times [2022-01-10 15:56:42,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:56:42,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380274741] [2022-01-10 15:56:42,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:56:42,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:56:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:56:42,649 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 15:56:42,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:56:42,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380274741] [2022-01-10 15:56:42,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380274741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:56:42,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:56:42,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:56:42,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40320531] [2022-01-10 15:56:42,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:56:42,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:56:42,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:56:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:56:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:56:42,652 INFO L87 Difference]: Start difference. First operand 170 states and 273 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 15:56:44,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:47,337 WARN L534 Checker$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 15:56:50,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:52,286 WARN L534 Checker$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 15:56:54,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:56:56,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:57:03,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:57:05,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:57:09,339 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 15:57:12,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:57:12,909 INFO L93 Difference]: Finished difference Result 407 states and 641 transitions. [2022-01-10 15:57:12,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:57:12,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2022-01-10 15:57:12,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:57:12,912 INFO L225 Difference]: With dead ends: 407 [2022-01-10 15:57:12,912 INFO L226 Difference]: Without dead ends: 278 [2022-01-10 15:57:12,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:57:12,913 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 105 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 22 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-01-10 15:57:12,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 257 Invalid, 6 Unknown, 0 Unchecked, 30.2s Time] [2022-01-10 15:57:12,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-01-10 15:57:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 211. [2022-01-10 15:57:12,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.6571428571428573) internal successors, (348), 210 states have internal predecessors, (348), 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 15:57:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 348 transitions. [2022-01-10 15:57:12,926 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 348 transitions. Word has length 44 [2022-01-10 15:57:12,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:57:12,926 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 348 transitions. [2022-01-10 15:57:12,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 15:57:12,926 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 348 transitions. [2022-01-10 15:57:12,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 15:57:12,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:57:12,928 INFO L514 BasicCegarLoop]: trace histogram [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 15:57:12,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 15:57:12,928 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:57:12,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:57:12,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1624921932, now seen corresponding path program 1 times [2022-01-10 15:57:12,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:57:12,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754897561] [2022-01-10 15:57:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:57:12,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:57:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:57:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:57:13,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:57:13,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754897561] [2022-01-10 15:57:13,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754897561] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:57:13,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:57:13,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:57:13,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23919174] [2022-01-10 15:57:13,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:57:13,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:57:13,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:57:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:57:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:57:13,338 INFO L87 Difference]: Start difference. First operand 211 states and 348 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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)