/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_BITWISE.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 10:04:42,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 10:04:42,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 10:04:42,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 10:04:42,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 10:04:42,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 10:04:42,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 10:04:42,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 10:04:42,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 10:04:42,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 10:04:42,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 10:04:42,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 10:04:42,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 10:04:42,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 10:04:42,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 10:04:42,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 10:04:42,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 10:04:42,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 10:04:42,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 10:04:42,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 10:04:42,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 10:04:42,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 10:04:42,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 10:04:42,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 10:04:42,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 10:04:42,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 10:04:42,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 10:04:42,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 10:04:42,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 10:04:42,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 10:04:42,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 10:04:42,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 10:04:42,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 10:04:42,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 10:04:42,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 10:04:42,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 10:04:42,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 10:04:42,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 10:04:42,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 10:04:42,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 10:04:42,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 10:04:42,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 10:04:42,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 10:04:42,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 10:04:42,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 10:04:42,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 10:04:42,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 10:04:42,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 10:04:42,531 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 10:04:42,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 10:04:42,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 10:04:42,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 10:04:42,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 10:04:42,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 10:04:42,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 10:04:42,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 10:04:42,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 10:04:42,534 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 10:04:42,534 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 10:04:42,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 10:04:42,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 10:04:42,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 10:04:42,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 10:04:42,711 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 10:04:42,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-01-10 10:04:42,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2deddba88/80998792c99544848358e48e894c1eaf/FLAG2d4c7ccf3 [2022-01-10 10:04:43,239 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 10:04:43,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-01-10 10:04:43,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2deddba88/80998792c99544848358e48e894c1eaf/FLAG2d4c7ccf3 [2022-01-10 10:04:43,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2deddba88/80998792c99544848358e48e894c1eaf [2022-01-10 10:04:43,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 10:04:43,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 10:04:43,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 10:04:43,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 10:04:43,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 10:04:43,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:43,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f39e12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43, skipping insertion in model container [2022-01-10 10:04:43,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:43,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 10:04:43,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 10:04:43,630 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.06.i.cil-2.c[78808,78821] [2022-01-10 10:04:43,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 10:04:43,647 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 10:04:43,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 10:04:43,776 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.06.i.cil-2.c[78808,78821] [2022-01-10 10:04:43,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 10:04:43,782 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 10:04:43,912 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.06.i.cil-2.c[78808,78821] [2022-01-10 10:04:43,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 10:04:43,933 INFO L208 MainTranslator]: Completed translation [2022-01-10 10:04:43,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43 WrapperNode [2022-01-10 10:04:43,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 10:04:43,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 10:04:43,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 10:04:43,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 10:04:43,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:43,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,018 INFO L137 Inliner]: procedures = 41, calls = 248, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 809 [2022-01-10 10:04:44,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 10:04:44,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 10:04:44,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 10:04:44,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 10:04:44,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 10:04:44,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 10:04:44,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 10:04:44,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 10:04:44,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (1/1) ... [2022-01-10 10:04:44,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 10:04:44,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:04:44,169 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 10:04:44,183 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 10:04:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 10:04:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 10:04:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 10:04:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-10 10:04:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 10:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 10:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 10:04:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 10:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 10:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 10:04:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 10:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 10:04:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 10:04:44,339 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 10:04:44,340 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 10:04:44,363 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:04:57,070 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-10 10:04:57,071 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-10 10:04:57,071 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 10:04:57,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 10:04:57,076 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 10:04:57,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:04:57 BoogieIcfgContainer [2022-01-10 10:04:57,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 10:04:57,078 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 10:04:57,078 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 10:04:57,079 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 10:04:57,081 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:04:57" (1/1) ... [2022-01-10 10:04:57,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:04:57 BasicIcfg [2022-01-10 10:04:57,394 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 10:04:57,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 10:04:57,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 10:04:57,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 10:04:57,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 10:04:43" (1/4) ... [2022-01-10 10:04:57,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c79714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:04:57, skipping insertion in model container [2022-01-10 10:04:57,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:04:43" (2/4) ... [2022-01-10 10:04:57,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c79714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:04:57, skipping insertion in model container [2022-01-10 10:04:57,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:04:57" (3/4) ... [2022-01-10 10:04:57,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c79714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 10:04:57, skipping insertion in model container [2022-01-10 10:04:57,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:04:57" (4/4) ... [2022-01-10 10:04:57,400 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-2.cTransformedIcfg [2022-01-10 10:04:57,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 10:04:57,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 10:04:57,444 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 10:04:57,449 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 10:04:57,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 10:04:57,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 160 states have (on average 1.7375) internal successors, (278), 161 states have internal predecessors, (278), 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 10:04:57,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 10:04:57,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:04:57,472 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 10:04:57,472 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:04:57,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:04:57,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1713178370, now seen corresponding path program 1 times [2022-01-10 10:04:57,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:04:57,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003597008] [2022-01-10 10:04:57,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:04:57,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:04:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:04:58,080 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 10:04:58,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:04:58,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003597008] [2022-01-10 10:04:58,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003597008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:04:58,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:04:58,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:04:58,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702791747] [2022-01-10 10:04:58,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:04:58,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:04:58,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:04:58,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:04:58,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:04:58,112 INFO L87 Difference]: Start difference. First operand has 162 states, 160 states have (on average 1.7375) internal successors, (278), 161 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 10:04:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:04:58,312 INFO L93 Difference]: Finished difference Result 463 states and 800 transitions. [2022-01-10 10:04:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:04:58,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 10:04:58,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:04:58,322 INFO L225 Difference]: With dead ends: 463 [2022-01-10 10:04:58,322 INFO L226 Difference]: Without dead ends: 285 [2022-01-10 10:04:58,324 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 10:04:58,326 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 203 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 10:04:58,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 473 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 10:04:58,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-01-10 10:04:58,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-01-10 10:04:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.5140845070422535) internal successors, (430), 284 states have internal predecessors, (430), 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 10:04:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 430 transitions. [2022-01-10 10:04:58,372 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 430 transitions. Word has length 47 [2022-01-10 10:04:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:04:58,372 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 430 transitions. [2022-01-10 10:04:58,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 10:04:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 430 transitions. [2022-01-10 10:04:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 10:04:58,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:04:58,381 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 10:04:58,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 10:04:58,381 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:04:58,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:04:58,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1813036056, now seen corresponding path program 1 times [2022-01-10 10:04:58,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:04:58,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947361767] [2022-01-10 10:04:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:04:58,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:04:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:04:58,883 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 10:04:58,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:04:58,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947361767] [2022-01-10 10:04:58,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947361767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:04:58,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:04:58,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:04:58,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024445511] [2022-01-10 10:04:58,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:04:58,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:04:58,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:04:58,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:04:58,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:04:58,889 INFO L87 Difference]: Start difference. First operand 285 states and 430 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 10:04:59,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:04:59,433 INFO L93 Difference]: Finished difference Result 558 states and 865 transitions. [2022-01-10 10:04:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:04:59,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-10 10:04:59,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:04:59,436 INFO L225 Difference]: With dead ends: 558 [2022-01-10 10:04:59,436 INFO L226 Difference]: Without dead ends: 419 [2022-01-10 10:04:59,437 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 10:04:59,437 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 152 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 10:04:59,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 591 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 10:04:59,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-01-10 10:04:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2022-01-10 10:04:59,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.4904306220095693) internal successors, (623), 418 states have internal predecessors, (623), 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 10:04:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 623 transitions. [2022-01-10 10:04:59,453 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 623 transitions. Word has length 64 [2022-01-10 10:04:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:04:59,453 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 623 transitions. [2022-01-10 10:04:59,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 10:04:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 623 transitions. [2022-01-10 10:04:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 10:04:59,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:04:59,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:04:59,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 10:04:59,454 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:04:59,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:04:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash -979347910, now seen corresponding path program 1 times [2022-01-10 10:04:59,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:04:59,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291648358] [2022-01-10 10:04:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:04:59,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:04:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:04:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-10 10:04:59,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:04:59,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291648358] [2022-01-10 10:04:59,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291648358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:04:59,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:04:59,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:04:59,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091661955] [2022-01-10 10:04:59,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:04:59,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:04:59,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:04:59,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:04:59,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:04:59,833 INFO L87 Difference]: Start difference. First operand 419 states and 623 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 10:05:00,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:05:00,014 INFO L93 Difference]: Finished difference Result 829 states and 1255 transitions. [2022-01-10 10:05:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:05:00,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 86 [2022-01-10 10:05:00,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:05:00,017 INFO L225 Difference]: With dead ends: 829 [2022-01-10 10:05:00,017 INFO L226 Difference]: Without dead ends: 556 [2022-01-10 10:05:00,018 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 10:05:00,019 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 164 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:05:00,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 389 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:05:00,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-01-10 10:05:00,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2022-01-10 10:05:00,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 555 states have (on average 1.4828828828828828) internal successors, (823), 555 states have internal predecessors, (823), 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 10:05:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 823 transitions. [2022-01-10 10:05:00,037 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 823 transitions. Word has length 86 [2022-01-10 10:05:00,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:05:00,037 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 823 transitions. [2022-01-10 10:05:00,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 10:05:00,037 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 823 transitions. [2022-01-10 10:05:00,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 10:05:00,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:05:00,039 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-01-10 10:05:00,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 10:05:00,039 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 10:05:00,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:05:00,039 INFO L85 PathProgramCache]: Analyzing trace with hash 515555236, now seen corresponding path program 1 times [2022-01-10 10:05:00,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:05:00,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329369373] [2022-01-10 10:05:00,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:05:00,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:05:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:05:00,534 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-10 10:05:00,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:05:00,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329369373] [2022-01-10 10:05:00,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329369373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:05:00,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:05:00,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:05:00,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188470658] [2022-01-10 10:05:00,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:05:00,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:05:00,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:05:00,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:05:00,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:05:00,536 INFO L87 Difference]: Start difference. First operand 556 states and 823 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 10:05:02,558 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 10:05:04,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:07,775 WARN L534 Checker$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 10:05:09,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:11,994 WARN L534 Checker$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 10:05:14,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:16,708 WARN L534 Checker$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 10:05:19,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:21,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:24,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:26,343 WARN L534 Checker$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 10:05:29,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:32,463 WARN L534 Checker$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 10:05:33,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:36,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:38,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:40,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:44,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:46,551 WARN L534 Checker$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 10:05:48,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:51,012 WARN L534 Checker$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 10:05:54,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:56,094 WARN L534 Checker$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 10:05:57,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:05:59,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 10:06:01,456 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 []