/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.04.i.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 15:54:35,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 15:54:35,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 15:54:35,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 15:54:35,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 15:54:35,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 15:54:35,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 15:54:35,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 15:54:35,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 15:54:35,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 15:54:35,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 15:54:35,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 15:54:35,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 15:54:35,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 15:54:35,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 15:54:35,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 15:54:35,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 15:54:35,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 15:54:35,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 15:54:35,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 15:54:35,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 15:54:35,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 15:54:35,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 15:54:35,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 15:54:35,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 15:54:35,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 15:54:35,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 15:54:35,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 15:54:35,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 15:54:35,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 15:54:35,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 15:54:35,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 15:54:35,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 15:54:35,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 15:54:35,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 15:54:35,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 15:54:35,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 15:54:35,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 15:54:35,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 15:54:35,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 15:54:35,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 15:54:35,348 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 15:54:35,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 15:54:35,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 15:54:35,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 15:54:35,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 15:54:35,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 15:54:35,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 15:54:35,367 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 15:54:35,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 15:54:35,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 15:54:35,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 15:54:35,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 15:54:35,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 15:54:35,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 15:54:35,368 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 15:54:35,368 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 15:54:35,368 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 15:54:35,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 15:54:35,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:54:35,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 15:54:35,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 15:54:35,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 15:54:35,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 15:54:35,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 15:54:35,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 15:54:35,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 15:54:35,371 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 15:54:35,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 15:54:35,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 15:54:35,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 15:54:35,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 15:54:35,545 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 15:54:35,545 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 15:54:35,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c [2022-01-10 15:54:35,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e49786f9/e65aa827fc6e462997f700fdea75075c/FLAGb7d10fda3 [2022-01-10 15:54:36,095 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 15:54:36,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.04.i.cil.c [2022-01-10 15:54:36,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e49786f9/e65aa827fc6e462997f700fdea75075c/FLAGb7d10fda3 [2022-01-10 15:54:36,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e49786f9/e65aa827fc6e462997f700fdea75075c [2022-01-10 15:54:36,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 15:54:36,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 15:54:36,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 15:54:36,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 15:54:36,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 15:54:36,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:36,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ca7173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36, skipping insertion in model container [2022-01-10 15:54:36,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:36,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 15:54:36,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:54:36,777 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.04.i.cil.c[72500,72513] [2022-01-10 15:54:36,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:54:36,793 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 15:54:36,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:54:36,848 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.04.i.cil.c[72500,72513] [2022-01-10 15:54:36,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:54:36,853 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 15:54:36,942 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.04.i.cil.c[72500,72513] [2022-01-10 15:54:36,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:54:36,964 INFO L208 MainTranslator]: Completed translation [2022-01-10 15:54:36,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36 WrapperNode [2022-01-10 15:54:36,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 15:54:36,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 15:54:36,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 15:54:36,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 15:54:36,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,042 INFO L137 Inliner]: procedures = 41, calls = 248, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 775 [2022-01-10 15:54:37,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 15:54:37,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 15:54:37,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 15:54:37,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 15:54:37,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 15:54:37,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 15:54:37,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 15:54:37,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 15:54:37,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (1/1) ... [2022-01-10 15:54:37,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:54:37,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:54:37,159 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 15:54:37,193 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 15:54:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 15:54:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 15:54:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 15:54:37,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 15:54:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 15:54:37,376 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 15:54:37,377 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 15:54:37,407 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:54:50,353 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-10 15:54:50,353 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-10 15:54:50,353 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 15:54:50,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 15:54:50,358 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 15:54:50,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:54:50 BoogieIcfgContainer [2022-01-10 15:54:50,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 15:54:50,380 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 15:54:50,380 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 15:54:50,381 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 15:54:50,383 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:54:50" (1/1) ... [2022-01-10 15:54:50,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:54:50 BasicIcfg [2022-01-10 15:54:50,568 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 15:54:50,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 15:54:50,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 15:54:50,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 15:54:50,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:54:36" (1/4) ... [2022-01-10 15:54:50,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796ac37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:54:50, skipping insertion in model container [2022-01-10 15:54:50,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:54:36" (2/4) ... [2022-01-10 15:54:50,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796ac37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:54:50, skipping insertion in model container [2022-01-10 15:54:50,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:54:50" (3/4) ... [2022-01-10 15:54:50,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796ac37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:54:50, skipping insertion in model container [2022-01-10 15:54:50,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:54:50" (4/4) ... [2022-01-10 15:54:50,572 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.04.i.cil.cTransformedIcfg [2022-01-10 15:54:50,575 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 15:54:50,575 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 15:54:50,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 15:54:50,620 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 15:54:50,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 15:54:50,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 143 states have (on average 1.7062937062937062) internal successors, (244), 144 states have internal predecessors, (244), 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 15:54:50,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 15:54:50,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:54:50,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:54:50,639 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:54:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:54:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1522554765, now seen corresponding path program 1 times [2022-01-10 15:54:50,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:54:50,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404436471] [2022-01-10 15:54:50,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:54:50,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:54:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:54:51,502 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 15:54:51,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:54:51,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404436471] [2022-01-10 15:54:51,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404436471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:54:51,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:54:51,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:54:51,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311211002] [2022-01-10 15:54:51,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:54:51,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:54:51,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:54:51,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:54:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:54:51,526 INFO L87 Difference]: Start difference. First operand has 145 states, 143 states have (on average 1.7062937062937062) internal successors, (244), 144 states have internal predecessors, (244), 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 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 15:54:53,558 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 15:54:56,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:54:59,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:01,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:02,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:04,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:06,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:08,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:15,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:16,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:21,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:25,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:26,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:55:26,268 INFO L93 Difference]: Finished difference Result 383 states and 647 transitions. [2022-01-10 15:55:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:55:26,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2022-01-10 15:55:26,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:55:26,281 INFO L225 Difference]: With dead ends: 383 [2022-01-10 15:55:26,281 INFO L226 Difference]: Without dead ends: 225 [2022-01-10 15:55:26,283 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 15:55:26,285 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 105 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 11 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2022-01-10 15:55:26,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 441 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 255 Invalid, 7 Unknown, 0 Unchecked, 34.6s Time] [2022-01-10 15:55:26,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-01-10 15:55:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 167. [2022-01-10 15:55:26,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.608433734939759) internal successors, (267), 166 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 267 transitions. [2022-01-10 15:55:26,331 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 267 transitions. Word has length 47 [2022-01-10 15:55:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:55:26,331 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 267 transitions. [2022-01-10 15:55:26,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 267 transitions. [2022-01-10 15:55:26,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 15:55:26,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:55:26,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:55:26,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 15:55:26,333 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:55:26,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:55:26,334 INFO L85 PathProgramCache]: Analyzing trace with hash 46389780, now seen corresponding path program 1 times [2022-01-10 15:55:26,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:55:26,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769661208] [2022-01-10 15:55:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:55:26,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:55:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:55:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:55:26,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:55:26,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769661208] [2022-01-10 15:55:26,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769661208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:55:26,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:55:26,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:55:26,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022614844] [2022-01-10 15:55:26,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:55:26,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:55:26,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:55:26,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:55:26,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:55:26,631 INFO L87 Difference]: Start difference. First operand 167 states and 267 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:26,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:55:26,713 INFO L93 Difference]: Finished difference Result 408 states and 637 transitions. [2022-01-10 15:55:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:55:26,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-01-10 15:55:26,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:55:26,717 INFO L225 Difference]: With dead ends: 408 [2022-01-10 15:55:26,717 INFO L226 Difference]: Without dead ends: 286 [2022-01-10 15:55:26,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:55:26,719 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 145 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:55:26,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 375 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:55:26,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-01-10 15:55:26,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-01-10 15:55:26,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.5649122807017544) internal successors, (446), 285 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 446 transitions. [2022-01-10 15:55:26,736 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 446 transitions. Word has length 48 [2022-01-10 15:55:26,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:55:26,737 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 446 transitions. [2022-01-10 15:55:26,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:55:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 446 transitions. [2022-01-10 15:55:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 15:55:26,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:55:26,739 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] [2022-01-10 15:55:26,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 15:55:26,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:55:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:55:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1899114585, now seen corresponding path program 1 times [2022-01-10 15:55:26,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:55:26,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203497636] [2022-01-10 15:55:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:55:26,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:55:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:55:27,118 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:55:27,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:55:27,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203497636] [2022-01-10 15:55:27,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203497636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:55:27,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:55:27,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:55:27,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436338364] [2022-01-10 15:55:27,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:55:27,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:55:27,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:55:27,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:55:27,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:55:27,120 INFO L87 Difference]: Start difference. First operand 286 states and 446 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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) [2022-01-10 15:55:29,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:31,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:33,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:35,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:38,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:42,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:45,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:46,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:49,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:51,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 15:55:54,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []