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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:35:33,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:35:33,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:35:33,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:35:33,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:35:33,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:35:33,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:35:33,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:35:33,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:35:33,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:35:33,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:35:33,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:35:33,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:35:33,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:35:33,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:35:33,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:35:33,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:35:33,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:35:33,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:35:33,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:35:33,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:35:33,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:35:33,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:35:33,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:35:33,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 02:35:33,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:35:33,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:35:33,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:35:33,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:35:33,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:35:33,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:35:33,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:35:33,612 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:35:33,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:35:33,613 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:35:33,613 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:35:33,613 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:35:33,613 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:35:33,614 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:35:33,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:35:33,614 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:35:33,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:35:33,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:35:33,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:35:33,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:35:33,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:35:33,615 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:35:33,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:35:33,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:35:33,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:35:33,616 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:35:33,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:35:33,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:35:33,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:35:33,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:35:33,617 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:35:33,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:35:33,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:35:33,618 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:35:33,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:35:33,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:35:33,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:35:33,663 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:35:33,663 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:35:33,664 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2019-10-03 02:35:33,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc930615d/34d8fa2329124776b92be64aa5ae5b98/FLAG43d0d12e4 [2019-10-03 02:35:34,187 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:35:34,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2019-10-03 02:35:34,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc930615d/34d8fa2329124776b92be64aa5ae5b98/FLAG43d0d12e4 [2019-10-03 02:35:34,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc930615d/34d8fa2329124776b92be64aa5ae5b98 [2019-10-03 02:35:34,559 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:35:34,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:35:34,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:35:34,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:35:34,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:35:34,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:34,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba36926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34, skipping insertion in model container [2019-10-03 02:35:34,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:34,579 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:35:34,605 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:35:34,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:35:34,925 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:35:34,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:35:34,986 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:35:34,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34 WrapperNode [2019-10-03 02:35:34,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:35:34,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:35:34,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:35:34,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:35:35,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:35,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:35,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:35,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:35,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:35,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:35,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (1/1) ... [2019-10-03 02:35:35,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:35:35,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:35:35,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:35:35,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:35:35,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (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 [2019-10-03 02:35:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:35:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:35:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 02:35:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2019-10-03 02:35:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2019-10-03 02:35:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:35:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:35:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-03 02:35:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 02:35:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-10-03 02:35:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-10-03 02:35:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-10-03 02:35:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-10-03 02:35:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2019-10-03 02:35:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-03 02:35:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-03 02:35:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-03 02:35:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-03 02:35:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-10-03 02:35:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-03 02:35:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2019-10-03 02:35:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2019-10-03 02:35:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-10-03 02:35:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2019-10-03 02:35:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2019-10-03 02:35:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2019-10-03 02:35:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2019-10-03 02:35:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2019-10-03 02:35:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2019-10-03 02:35:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2019-10-03 02:35:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2019-10-03 02:35:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2019-10-03 02:35:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2019-10-03 02:35:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2019-10-03 02:35:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2019-10-03 02:35:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:35:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:35:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:35:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:35:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:35:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:35:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:35:35,561 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:35:35,561 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:35:35,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:35:35 BoogieIcfgContainer [2019-10-03 02:35:35,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:35:35,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:35:35,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:35:35,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:35:35,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:35:34" (1/3) ... [2019-10-03 02:35:35,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d69517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:35:35, skipping insertion in model container [2019-10-03 02:35:35,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:35:34" (2/3) ... [2019-10-03 02:35:35,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d69517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:35:35, skipping insertion in model container [2019-10-03 02:35:35,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:35:35" (3/3) ... [2019-10-03 02:35:35,570 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2019-10-03 02:35:35,580 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:35:35,588 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:35:35,605 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:35:35,632 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:35:35,632 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:35:35,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:35:35,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:35:35,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:35:35,633 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:35:35,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:35:35,633 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:35:35,650 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-03 02:35:35,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-03 02:35:35,661 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:35:35,662 INFO L411 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] [2019-10-03 02:35:35,664 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:35:35,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:35:35,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1663477819, now seen corresponding path program 1 times [2019-10-03 02:35:35,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:35:35,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:35:35,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:35:35,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:35:35,745 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:35:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:35:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:35:35,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:35:35,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:35:35,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:35:35,869 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:35:35,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:35:35,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:35:35,890 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 3 states. [2019-10-03 02:35:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:35:35,945 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-10-03 02:35:35,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:35:35,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-03 02:35:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:35:35,963 INFO L225 Difference]: With dead ends: 57 [2019-10-03 02:35:35,963 INFO L226 Difference]: Without dead ends: 49 [2019-10-03 02:35:35,967 INFO L640 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 [2019-10-03 02:35:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-03 02:35:36,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2019-10-03 02:35:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-03 02:35:36,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2019-10-03 02:35:36,031 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 32 [2019-10-03 02:35:36,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:35:36,032 INFO L475 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2019-10-03 02:35:36,032 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:35:36,032 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2019-10-03 02:35:36,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-03 02:35:36,036 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:35:36,036 INFO L411 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] [2019-10-03 02:35:36,040 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:35:36,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:35:36,041 INFO L82 PathProgramCache]: Analyzing trace with hash 227833136, now seen corresponding path program 1 times [2019-10-03 02:35:36,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:35:36,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:35:36,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:35:36,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:35:36,045 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:35:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:35:36,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:35:36,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:35:36,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:35:36,169 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:35:36,171 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:35:36,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:35:36,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:35:36,174 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 3 states. [2019-10-03 02:35:36,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:35:36,195 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2019-10-03 02:35:36,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:35:36,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-10-03 02:35:36,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:35:36,197 INFO L225 Difference]: With dead ends: 49 [2019-10-03 02:35:36,197 INFO L226 Difference]: Without dead ends: 49 [2019-10-03 02:35:36,198 INFO L640 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 [2019-10-03 02:35:36,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-03 02:35:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-10-03 02:35:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-03 02:35:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2019-10-03 02:35:36,205 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 38 [2019-10-03 02:35:36,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:35:36,205 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2019-10-03 02:35:36,205 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:35:36,205 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2019-10-03 02:35:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-03 02:35:36,207 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:35:36,207 INFO L411 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] [2019-10-03 02:35:36,207 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:35:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:35:36,208 INFO L82 PathProgramCache]: Analyzing trace with hash 446687854, now seen corresponding path program 1 times [2019-10-03 02:35:36,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:35:36,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:35:36,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:35:36,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:35:36,210 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:35:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:35:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:35:36,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:35:36,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:35:36,328 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:35:36,329 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:35:36,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:35:36,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:35:36,330 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 5 states. [2019-10-03 02:35:36,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:35:36,439 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2019-10-03 02:35:36,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:35:36,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-10-03 02:35:36,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:35:36,441 INFO L225 Difference]: With dead ends: 59 [2019-10-03 02:35:36,441 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:35:36,442 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:35:36,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:35:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:35:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:35:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:35:36,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-10-03 02:35:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:35:36,443 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:35:36,444 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:35:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:35:36,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:35:36,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:35:36 BoogieIcfgContainer [2019-10-03 02:35:36,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:35:36,452 INFO L168 Benchmark]: Toolchain (without parser) took 1890.13 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 88.7 MB in the beginning and 93.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 62.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:35:36,453 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:35:36,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.35 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 88.5 MB in the beginning and 174.4 MB in the end (delta: -85.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:35:36,455 INFO L168 Benchmark]: Boogie Preprocessor took 50.67 ms. Allocated memory is still 200.3 MB. Free memory was 174.4 MB in the beginning and 172.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:35:36,456 INFO L168 Benchmark]: RCFGBuilder took 524.29 ms. Allocated memory is still 200.3 MB. Free memory was 172.0 MB in the beginning and 143.4 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:35:36,457 INFO L168 Benchmark]: TraceAbstraction took 885.62 ms. Allocated memory is still 200.3 MB. Free memory was 142.8 MB in the beginning and 93.4 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:35:36,461 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 423.35 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 88.5 MB in the beginning and 174.4 MB in the end (delta: -85.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.67 ms. Allocated memory is still 200.3 MB. Free memory was 174.4 MB in the beginning and 172.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 524.29 ms. Allocated memory is still 200.3 MB. Free memory was 172.0 MB in the beginning and 143.4 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 885.62 ms. Allocated memory is still 200.3 MB. Free memory was 142.8 MB in the beginning and 93.4 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 55 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 20 SDslu, 236 SDs, 0 SdLazy, 50 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 4427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...