/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/loops/count_up_down-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:19:18,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:19:18,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:19:18,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 14:19:18,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 14:19:18,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 14:19:18,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 14:19:18,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 14:19:18,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 14:19:18,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 14:19:18,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 14:19:18,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 14:19:18,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:19:18,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:19:18,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:19:18,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:19:18,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:19:18,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:19:18,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:19:18,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:19:18,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:19:18,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:19:18,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:19:18,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:19:18,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 14:19:18,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 14:19:18,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 14:19:18,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 14:19:18,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 14:19:18,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 14:19:18,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 14:19:18,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 14:19:18,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 14:19:18,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 14:19:18,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 14:19:18,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 14:19:18,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 14:19:18,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 14:19:18,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:19:18,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:19:18,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:19:18,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 14:19:18,566 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:19:18,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:19:18,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:19:18,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:19:18,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:19:18,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:19:18,568 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:19:18,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:19:18,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:19:18,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:19:18,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:19:18,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:19:18,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:19:18,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:19:18,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:19:18,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:19:18,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:19:18,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:19:18,572 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:19:18,572 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:19:18,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:19:18,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:19:18,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:19:18,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:19:18,797 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:19:18,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down-2.c [2022-01-10 14:19:18,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc33389e4/3d1c9d006ca54433ab9b338f58b99905/FLAGb05a0a212 [2022-01-10 14:19:19,212 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:19:19,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c [2022-01-10 14:19:19,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc33389e4/3d1c9d006ca54433ab9b338f58b99905/FLAGb05a0a212 [2022-01-10 14:19:19,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc33389e4/3d1c9d006ca54433ab9b338f58b99905 [2022-01-10 14:19:19,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:19:19,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:19:19,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:19:19,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:19:19,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:19:19,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc5a808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19, skipping insertion in model container [2022-01-10 14:19:19,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:19:19,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:19:19,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c[327,340] [2022-01-10 14:19:19,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:19:19,406 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:19:19,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c[327,340] [2022-01-10 14:19:19,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:19:19,429 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:19:19,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19 WrapperNode [2022-01-10 14:19:19,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:19:19,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:19:19,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:19:19,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:19:19,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,449 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-01-10 14:19:19,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:19:19,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:19:19,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:19:19,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:19:19,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:19:19,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:19:19,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:19:19,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:19:19,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:19:19,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:19:19,494 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 14:19:19,514 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 14:19:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:19:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:19:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:19:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:19:19,570 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:19:19,571 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:19:19,693 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:19:19,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:19:19,697 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 14:19:19,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:19:19 BoogieIcfgContainer [2022-01-10 14:19:19,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:19:19,698 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:19:19,698 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:19:19,700 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:19:19,701 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:19:19" (1/1) ... [2022-01-10 14:19:19,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:19:19 BasicIcfg [2022-01-10 14:19:19,760 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:19:19,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:19:19,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:19:19,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:19:19,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:19:19" (1/4) ... [2022-01-10 14:19:19,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aac1890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:19:19, skipping insertion in model container [2022-01-10 14:19:19,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:19:19" (2/4) ... [2022-01-10 14:19:19,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aac1890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:19:19, skipping insertion in model container [2022-01-10 14:19:19,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:19:19" (3/4) ... [2022-01-10 14:19:19,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aac1890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:19:19, skipping insertion in model container [2022-01-10 14:19:19,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:19:19" (4/4) ... [2022-01-10 14:19:19,766 INFO L111 eAbstractionObserver]: Analyzing ICFG count_up_down-2.cTransformedIcfg [2022-01-10 14:19:19,772 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:19:19,772 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 14:19:19,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:19:19,823 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 14:19:19,823 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 14:19:19,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 14:19:19,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 14:19:19,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:19:19,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 14:19:19,837 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:19:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:19:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1775995463, now seen corresponding path program 1 times [2022-01-10 14:19:19,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:19:19,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752193983] [2022-01-10 14:19:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:19:19,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:19:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:19:19,988 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 14:19:19,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:19:19,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752193983] [2022-01-10 14:19:19,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752193983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:19:19,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:19:19,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:19:19,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695289760] [2022-01-10 14:19:19,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:19:19,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 14:19:19,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:19:20,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 14:19:20,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:19:20,021 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 14:19:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:19:20,031 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-01-10 14:19:20,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 14:19:20,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-01-10 14:19:20,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:19:20,037 INFO L225 Difference]: With dead ends: 19 [2022-01-10 14:19:20,038 INFO L226 Difference]: Without dead ends: 7 [2022-01-10 14:19:20,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:19:20,043 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:19:20,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:19:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-01-10 14:19:20,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-01-10 14:19:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 14:19:20,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-01-10 14:19:20,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2022-01-10 14:19:20,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:19:20,067 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-01-10 14:19:20,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 14:19:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-01-10 14:19:20,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 14:19:20,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:19:20,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 14:19:20,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:19:20,070 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 14:19:20,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:19:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1776025254, now seen corresponding path program 1 times [2022-01-10 14:19:20,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:19:20,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781362602] [2022-01-10 14:19:20,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:19:20,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:19:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 14:19:20,099 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 14:19:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 14:19:20,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 14:19:20,131 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 14:19:20,133 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 14:19:20,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:19:20,137 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 14:19:20,138 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 14:19:20,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:19:20 BasicIcfg [2022-01-10 14:19:20,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 14:19:20,156 INFO L158 Benchmark]: Toolchain (without parser) took 921.26ms. Allocated memory is still 208.7MB. Free memory was 157.4MB in the beginning and 147.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-01-10 14:19:20,156 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory is still 174.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 14:19:20,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.79ms. Allocated memory is still 208.7MB. Free memory was 157.2MB in the beginning and 184.9MB in the end (delta: -27.6MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. [2022-01-10 14:19:20,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.46ms. Allocated memory is still 208.7MB. Free memory was 184.9MB in the beginning and 183.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 14:19:20,157 INFO L158 Benchmark]: Boogie Preprocessor took 21.51ms. Allocated memory is still 208.7MB. Free memory was 183.4MB in the beginning and 182.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 14:19:20,158 INFO L158 Benchmark]: RCFGBuilder took 225.84ms. Allocated memory is still 208.7MB. Free memory was 182.3MB in the beginning and 173.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-10 14:19:20,158 INFO L158 Benchmark]: IcfgTransformer took 61.58ms. Allocated memory is still 208.7MB. Free memory was 173.3MB in the beginning and 170.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 14:19:20,158 INFO L158 Benchmark]: TraceAbstraction took 394.40ms. Allocated memory is still 208.7MB. Free memory was 170.5MB in the beginning and 147.0MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-10 14:19:20,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory is still 174.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.79ms. Allocated memory is still 208.7MB. Free memory was 157.2MB in the beginning and 184.9MB in the end (delta: -27.6MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.46ms. Allocated memory is still 208.7MB. Free memory was 184.9MB in the beginning and 183.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.51ms. Allocated memory is still 208.7MB. Free memory was 183.4MB in the beginning and 182.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 225.84ms. Allocated memory is still 208.7MB. Free memory was 182.3MB in the beginning and 173.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * IcfgTransformer took 61.58ms. Allocated memory is still 208.7MB. Free memory was 173.3MB in the beginning and 170.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 394.40ms. Allocated memory is still 208.7MB. Free memory was 170.5MB in the beginning and 147.0MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] unsigned int n = __VERIFIER_nondet_uint(); [L16] unsigned int x=n, y=0; VAL [n=0, x=0, y=0] [L17] COND FALSE !(x>0) VAL [n=0, x=0, y=0] [L22] CALL __VERIFIER_assert(y!=n) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-10 14:19:20,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...