/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loops/n.c24.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:35:42,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:35:42,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:35:42,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:35:42,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:35:42,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:35:42,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:35:42,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:35:42,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:35:42,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:35:42,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:35:42,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:35:42,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:35:42,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:35:42,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:35:42,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:35:42,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:35:42,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:35:42,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:35:42,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:35:42,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:35:42,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:35:42,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:35:42,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:35:42,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:35:42,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:35:42,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:35:42,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:35:42,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:35:42,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:35:42,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:35:42,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:35:42,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:35:42,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:35:42,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:35:42,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:35:42,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:35:42,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:35:42,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:35:42,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:35:42,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:35:42,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:35:42,596 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:35:42,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:35:42,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:35:42,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:35:42,601 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:35:42,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:35:42,602 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:35:42,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:35:42,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:35:42,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:35:42,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:35:42,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:35:42,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:35:42,603 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:35:42,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:35:42,603 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:35:42,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:35:42,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:35:42,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:35:42,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:35:42,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:35:42,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:42,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:35:42,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:35:42,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:35:42,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:35:42,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:35:42,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:35:42,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:35:42,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:35:42,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:35:42,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:35:42,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:35:42,958 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:35:42,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c24.i [2019-11-07 00:35:43,033 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ff161e7/5abe209875954ce8b4cc1ca9a2c50570/FLAGea011ee32 [2019-11-07 00:35:43,503 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:35:43,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c24.i [2019-11-07 00:35:43,513 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ff161e7/5abe209875954ce8b4cc1ca9a2c50570/FLAGea011ee32 [2019-11-07 00:35:43,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08ff161e7/5abe209875954ce8b4cc1ca9a2c50570 [2019-11-07 00:35:43,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:35:43,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:35:43,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:43,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:35:43,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:35:43,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:43" (1/1) ... [2019-11-07 00:35:43,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1a6acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:43, skipping insertion in model container [2019-11-07 00:35:43,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:43" (1/1) ... [2019-11-07 00:35:43,864 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:35:43,903 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:35:44,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:44,150 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:35:44,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:44,300 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:35:44,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44 WrapperNode [2019-11-07 00:35:44,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:44,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:35:44,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:35:44,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:35:44,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... [2019-11-07 00:35:44,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... [2019-11-07 00:35:44,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... [2019-11-07 00:35:44,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... [2019-11-07 00:35:44,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... [2019-11-07 00:35:44,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... [2019-11-07 00:35:44,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... [2019-11-07 00:35:44,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:35:44,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:35:44,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:35:44,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:35:44,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:35:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:35:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:35:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2019-11-07 00:35:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-07 00:35:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:35:44,421 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-11-07 00:35:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:35:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:35:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-07 00:35:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-11-07 00:35:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2019-11-07 00:35:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 00:35:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-11-07 00:35:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-11-07 00:35:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-11-07 00:35:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-11-07 00:35:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-11-07 00:35:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2019-11-07 00:35:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-11-07 00:35:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-11-07 00:35:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2019-11-07 00:35:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2019-11-07 00:35:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2019-11-07 00:35:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2019-11-07 00:35:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2019-11-07 00:35:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2019-11-07 00:35:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-11-07 00:35:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-11-07 00:35:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-11-07 00:35:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2019-11-07 00:35:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2019-11-07 00:35:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-11-07 00:35:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2019-11-07 00:35:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2019-11-07 00:35:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2019-11-07 00:35:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-11-07 00:35:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-11-07 00:35:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2019-11-07 00:35:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2019-11-07 00:35:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2019-11-07 00:35:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure __bzero [2019-11-07 00:35:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2019-11-07 00:35:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2019-11-07 00:35:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2019-11-07 00:35:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure index [2019-11-07 00:35:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2019-11-07 00:35:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2019-11-07 00:35:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:35:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-11-07 00:35:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:35:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:35:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:35:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-07 00:35:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-07 00:35:44,905 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:35:44,906 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:35:44,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:44 BoogieIcfgContainer [2019-11-07 00:35:44,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:35:44,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:35:44,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:35:44,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:35:44,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:35:43" (1/3) ... [2019-11-07 00:35:44,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7424c4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:44, skipping insertion in model container [2019-11-07 00:35:44,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:44" (2/3) ... [2019-11-07 00:35:44,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7424c4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:44, skipping insertion in model container [2019-11-07 00:35:44,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:44" (3/3) ... [2019-11-07 00:35:44,916 INFO L109 eAbstractionObserver]: Analyzing ICFG n.c24.i [2019-11-07 00:35:44,924 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:35:44,932 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:35:44,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:35:44,970 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:35:44,970 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:35:44,970 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:35:44,971 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:35:44,971 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:35:44,971 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:35:44,971 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:35:44,971 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:35:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-11-07 00:35:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-07 00:35:44,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:44,999 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:45,000 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:45,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:45,007 INFO L82 PathProgramCache]: Analyzing trace with hash -581213385, now seen corresponding path program 1 times [2019-11-07 00:35:45,014 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:45,014 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417891562] [2019-11-07 00:35:45,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:45,171 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417891562] [2019-11-07 00:35:45,172 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:45,172 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:35:45,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710787429] [2019-11-07 00:35:45,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:35:45,180 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:45,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:35:45,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:35:45,198 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2019-11-07 00:35:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:45,277 INFO L93 Difference]: Finished difference Result 123 states and 177 transitions. [2019-11-07 00:35:45,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:35:45,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-07 00:35:45,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:45,290 INFO L225 Difference]: With dead ends: 123 [2019-11-07 00:35:45,290 INFO L226 Difference]: Without dead ends: 69 [2019-11-07 00:35:45,294 INFO L630 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 [2019-11-07 00:35:45,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-07 00:35:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 48. [2019-11-07 00:35:45,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-07 00:35:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2019-11-07 00:35:45,343 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 13 [2019-11-07 00:35:45,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:45,344 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2019-11-07 00:35:45,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:35:45,344 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2019-11-07 00:35:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-07 00:35:45,345 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:45,346 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:45,346 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:45,346 INFO L82 PathProgramCache]: Analyzing trace with hash -351648040, now seen corresponding path program 1 times [2019-11-07 00:35:45,347 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:45,347 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384165286] [2019-11-07 00:35:45,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:35:45,445 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384165286] [2019-11-07 00:35:45,446 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225153243] [2019-11-07 00:35:45,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:45,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 00:35:45,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:35:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:35:45,607 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:35:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:35:45,664 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1374676995] [2019-11-07 00:35:45,671 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 21 [2019-11-07 00:35:45,707 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:35:45,707 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:35:45,767 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:35:45,769 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 27 variables. [2019-11-07 00:35:45,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:45,773 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:35:45,807 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:35:45,807 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:35:45,809 INFO L553 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-11-07 00:35:45,809 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:35:45,810 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:35:45,810 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-11-07 00:35:45,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080480379] [2019-11-07 00:35:45,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:35:45,812 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:45,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:35:45,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:35:45,813 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 2 states. [2019-11-07 00:35:45,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:45,817 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2019-11-07 00:35:45,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:35:45,817 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-11-07 00:35:45,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:45,818 INFO L225 Difference]: With dead ends: 48 [2019-11-07 00:35:45,818 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:35:45,819 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:35:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:35:45,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:35:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:35:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:35:45,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-07 00:35:45,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:45,820 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:35:45,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:35:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:35:45,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:35:46,025 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:46,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:35:46,104 INFO L443 ceAbstractionStarter]: For program point barEXIT(lines 130 133) no Hoare annotation was computed. [2019-11-07 00:35:46,104 INFO L443 ceAbstractionStarter]: For program point barFINAL(lines 130 133) no Hoare annotation was computed. [2019-11-07 00:35:46,104 INFO L446 ceAbstractionStarter]: At program point barENTRY(lines 130 133) the Hoare annotation is: true [2019-11-07 00:35:46,105 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:35:46,105 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:35:46,105 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:46,105 INFO L443 ceAbstractionStarter]: For program point fooEXIT(lines 134 137) no Hoare annotation was computed. [2019-11-07 00:35:46,105 INFO L446 ceAbstractionStarter]: At program point fooENTRY(lines 134 137) the Hoare annotation is: true [2019-11-07 00:35:46,105 INFO L443 ceAbstractionStarter]: For program point fooFINAL(lines 134 137) no Hoare annotation was computed. [2019-11-07 00:35:46,106 INFO L446 ceAbstractionStarter]: At program point L-1-1(line -1) the Hoare annotation is: true [2019-11-07 00:35:46,106 INFO L446 ceAbstractionStarter]: At program point #Ultimate.C_memmoveENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:35:46,106 INFO L446 ceAbstractionStarter]: At program point L-1-3(line -1) the Hoare annotation is: true [2019-11-07 00:35:46,107 INFO L443 ceAbstractionStarter]: For program point #Ultimate.C_memmoveFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:35:46,107 INFO L443 ceAbstractionStarter]: For program point #Ultimate.C_memmoveEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:46,107 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:46,107 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:35:46,107 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:35:46,107 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:35:46,107 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 138 186) no Hoare annotation was computed. [2019-11-07 00:35:46,108 INFO L443 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2019-11-07 00:35:46,110 INFO L443 ceAbstractionStarter]: For program point L143-2(lines 143 183) no Hoare annotation was computed. [2019-11-07 00:35:46,110 INFO L439 ceAbstractionStarter]: At program point L143-3(lines 143 183) the Hoare annotation is: false [2019-11-07 00:35:46,110 INFO L439 ceAbstractionStarter]: At program point L143-4(lines 143 183) the Hoare annotation is: false [2019-11-07 00:35:46,110 INFO L443 ceAbstractionStarter]: For program point L168(line 168) no Hoare annotation was computed. [2019-11-07 00:35:46,110 INFO L439 ceAbstractionStarter]: At program point L152(line 152) the Hoare annotation is: false [2019-11-07 00:35:46,111 INFO L443 ceAbstractionStarter]: For program point L152-1(line 152) no Hoare annotation was computed. [2019-11-07 00:35:46,111 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 149) no Hoare annotation was computed. [2019-11-07 00:35:46,111 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 172) no Hoare annotation was computed. [2019-11-07 00:35:46,111 INFO L439 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: false [2019-11-07 00:35:46,111 INFO L443 ceAbstractionStarter]: For program point L165-1(line 165) no Hoare annotation was computed. [2019-11-07 00:35:46,111 INFO L443 ceAbstractionStarter]: For program point L161-1(lines 161 167) no Hoare annotation was computed. [2019-11-07 00:35:46,111 INFO L443 ceAbstractionStarter]: For program point L161-3(lines 161 167) no Hoare annotation was computed. [2019-11-07 00:35:46,112 INFO L443 ceAbstractionStarter]: For program point L157(lines 157 160) no Hoare annotation was computed. [2019-11-07 00:35:46,112 INFO L439 ceAbstractionStarter]: At program point L161-4(lines 161 167) the Hoare annotation is: false [2019-11-07 00:35:46,112 INFO L439 ceAbstractionStarter]: At program point L161-5(lines 161 167) the Hoare annotation is: false [2019-11-07 00:35:46,112 INFO L443 ceAbstractionStarter]: For program point L153(lines 153 160) no Hoare annotation was computed. [2019-11-07 00:35:46,112 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 181) no Hoare annotation was computed. [2019-11-07 00:35:46,112 INFO L443 ceAbstractionStarter]: For program point L145(lines 145 146) no Hoare annotation was computed. [2019-11-07 00:35:46,112 INFO L439 ceAbstractionStarter]: At program point L178-2(lines 151 182) the Hoare annotation is: false [2019-11-07 00:35:46,113 INFO L443 ceAbstractionStarter]: For program point L174(lines 174 181) no Hoare annotation was computed. [2019-11-07 00:35:46,114 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 138 186) no Hoare annotation was computed. [2019-11-07 00:35:46,114 INFO L443 ceAbstractionStarter]: For program point L141-2(lines 141 142) no Hoare annotation was computed. [2019-11-07 00:35:46,114 INFO L439 ceAbstractionStarter]: At program point L141-3(lines 141 142) the Hoare annotation is: false [2019-11-07 00:35:46,114 INFO L443 ceAbstractionStarter]: For program point L141-4(lines 141 142) no Hoare annotation was computed. [2019-11-07 00:35:46,115 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 138 186) the Hoare annotation is: true [2019-11-07 00:35:46,115 INFO L439 ceAbstractionStarter]: At program point L150-2(lines 150 182) the Hoare annotation is: false [2019-11-07 00:35:46,115 INFO L443 ceAbstractionStarter]: For program point L163(lines 163 166) no Hoare annotation was computed. [2019-11-07 00:35:46,115 INFO L443 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2019-11-07 00:35:46,115 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2019-11-07 00:35:46,116 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-07 00:35:46,116 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2019-11-07 00:35:46,116 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-07 00:35:46,116 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-11-07 00:35:46,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:35:46 BoogieIcfgContainer [2019-11-07 00:35:46,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:35:46,133 INFO L168 Benchmark]: Toolchain (without parser) took 2286.63 ms. Allocated memory was 144.2 MB in the beginning and 232.3 MB in the end (delta: 88.1 MB). Free memory was 101.7 MB in the beginning and 180.5 MB in the end (delta: -78.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:46,134 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:35:46,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.28 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 176.2 MB in the end (delta: -74.7 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:46,137 INFO L168 Benchmark]: Boogie Preprocessor took 52.86 ms. Allocated memory is still 201.3 MB. Free memory was 176.2 MB in the beginning and 174.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:46,139 INFO L168 Benchmark]: RCFGBuilder took 553.34 ms. Allocated memory is still 201.3 MB. Free memory was 173.4 MB in the beginning and 139.4 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:46,140 INFO L168 Benchmark]: TraceAbstraction took 1220.70 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 139.4 MB in the beginning and 180.5 MB in the end (delta: -41.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 00:35:46,150 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 455.28 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 176.2 MB in the end (delta: -74.7 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.86 ms. Allocated memory is still 201.3 MB. Free memory was 176.2 MB in the beginning and 174.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 553.34 ms. Allocated memory is still 201.3 MB. Free memory was 173.4 MB in the beginning and 139.4 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1220.70 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 139.4 MB in the beginning and 180.5 MB in the end (delta: -41.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 29 SDslu, 55 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 25 PreInvPairs, 25 NumberOfFragments, 19 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 1593 SizeOfPredicates, 1 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 102, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.868421052631579, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0526315789473684, AVG_WEAKENED_CONJUNCTS: 0.3157894736842105, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...