/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_NONE.epf -i ../../../trunk/examples/svcomp/loop-acceleration/multivar_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:13:08,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:13:08,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:13:08,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:13:08,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:13:08,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:13:08,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:13:08,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:13:08,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:13:08,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:13:08,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:13:08,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:13:08,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:13:08,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:13:08,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:13:08,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:13:08,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:13:08,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:13:08,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:13:08,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:13:08,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:13:08,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:13:08,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:13:08,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:13:08,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:13:08,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:13:08,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:13:08,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:13:08,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:13:08,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:13:08,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:13:08,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:13:08,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:13:08,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:13:08,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:13:08,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:13:08,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:13:08,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:13:08,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:13:08,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:13:08,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:13:08,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:13:08,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:13:08,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:13:08,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:13:08,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:13:08,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:13:08,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:13:08,206 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:13:08,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:13:08,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:13:08,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:13:08,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:13:08,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:13:08,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:13:08,218 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:13:08,219 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:13:08,219 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:13:08,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:13:08,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:13:08,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:13:08,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:13:08,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:13:08,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:13:08,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:13:08,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:13:08,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:13:08,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:13:08,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:13:08,220 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:13:08,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:13:08,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:13:08,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:13:08,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:13:08,221 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:13:08,222 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:13:08,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:13:08,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:13:08,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:13:08,391 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:13:08,391 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:13:08,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_1-2.c [2022-01-10 20:13:08,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff6f4c97/1528e42e7a7b48ac97ea559d54aee04e/FLAGe16a01145 [2022-01-10 20:13:08,774 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:13:08,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-2.c [2022-01-10 20:13:08,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff6f4c97/1528e42e7a7b48ac97ea559d54aee04e/FLAGe16a01145 [2022-01-10 20:13:08,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cff6f4c97/1528e42e7a7b48ac97ea559d54aee04e [2022-01-10 20:13:08,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:13:08,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:13:08,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:13:08,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:13:08,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:13:08,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:13:08" (1/1) ... [2022-01-10 20:13:08,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2423ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:08, skipping insertion in model container [2022-01-10 20:13:08,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:13:08" (1/1) ... [2022-01-10 20:13:08,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:13:08,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:13:08,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-2.c[374,387] [2022-01-10 20:13:08,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:13:08,973 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:13:08,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-2.c[374,387] [2022-01-10 20:13:08,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:13:09,033 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:13:09,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09 WrapperNode [2022-01-10 20:13:09,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:13:09,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:13:09,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:13:09,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:13:09,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,058 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-01-10 20:13:09,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:13:09,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:13:09,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:13:09,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:13:09,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:13:09,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:13:09,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:13:09,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:13:09,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:13:09,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:13:09,104 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 20:13:09,123 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 20:13:09,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:13:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:13:09,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:13:09,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:13:09,176 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:13:09,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:13:09,284 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:13:09,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:13:09,289 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:13:09,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:13:09 BoogieIcfgContainer [2022-01-10 20:13:09,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:13:09,292 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:13:09,292 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:13:09,293 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:13:09,295 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:13:09" (1/1) ... [2022-01-10 20:13:09,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:13:09 BasicIcfg [2022-01-10 20:13:09,347 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:13:09,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:13:09,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:13:09,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:13:09,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:13:08" (1/4) ... [2022-01-10 20:13:09,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d745803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:13:09, skipping insertion in model container [2022-01-10 20:13:09,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:13:09" (2/4) ... [2022-01-10 20:13:09,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d745803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:13:09, skipping insertion in model container [2022-01-10 20:13:09,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:13:09" (3/4) ... [2022-01-10 20:13:09,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d745803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:13:09, skipping insertion in model container [2022-01-10 20:13:09,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:13:09" (4/4) ... [2022-01-10 20:13:09,364 INFO L111 eAbstractionObserver]: Analyzing ICFG multivar_1-2.cTransformedIcfg [2022-01-10 20:13:09,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:13:09,381 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 20:13:09,425 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:13:09,436 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 20:13:09,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 20:13:09,445 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 20:13:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 20:13:09,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:13:09,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 20:13:09,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:13:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:13:09,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1775995463, now seen corresponding path program 1 times [2022-01-10 20:13:09,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:13:09,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60654321] [2022-01-10 20:13:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:13:09,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:13:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:13:09,579 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 20:13:09,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:13:09,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60654321] [2022-01-10 20:13:09,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60654321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:13:09,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:13:09,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:13:09,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943978258] [2022-01-10 20:13:09,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:13:09,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:13:09,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:13:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:13:09,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:13:09,612 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 20:13:09,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:13:09,620 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-01-10 20:13:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:13:09,625 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 20:13:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:13:09,630 INFO L225 Difference]: With dead ends: 19 [2022-01-10 20:13:09,630 INFO L226 Difference]: Without dead ends: 7 [2022-01-10 20:13:09,632 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 20:13:09,637 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 20:13:09,638 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 20:13:09,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-01-10 20:13:09,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-01-10 20:13:09,660 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 20:13:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-01-10 20:13:09,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2022-01-10 20:13:09,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:13:09,662 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-01-10 20:13:09,662 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 20:13:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-01-10 20:13:09,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 20:13:09,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:13:09,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 20:13:09,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:13:09,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:13:09,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:13:09,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1776025254, now seen corresponding path program 1 times [2022-01-10 20:13:09,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:13:09,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222463959] [2022-01-10 20:13:09,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:13:09,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:13:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:13:09,710 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 20:13:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 20:13:09,743 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 20:13:09,743 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 20:13:09,745 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 20:13:09,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:13:09,749 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 20:13:09,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 20:13:09,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:13:09 BasicIcfg [2022-01-10 20:13:09,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 20:13:09,779 INFO L158 Benchmark]: Toolchain (without parser) took 981.23ms. Allocated memory was 187.7MB in the beginning and 282.1MB in the end (delta: 94.4MB). Free memory was 134.7MB in the beginning and 216.6MB in the end (delta: -81.9MB). Peak memory consumption was 13.7MB. Max. memory is 8.0GB. [2022-01-10 20:13:09,779 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 20:13:09,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.47ms. Allocated memory was 187.7MB in the beginning and 282.1MB in the end (delta: 94.4MB). Free memory was 134.5MB in the beginning and 256.0MB in the end (delta: -121.5MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. [2022-01-10 20:13:09,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.11ms. Allocated memory is still 282.1MB. Free memory was 256.0MB in the beginning and 254.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 20:13:09,780 INFO L158 Benchmark]: Boogie Preprocessor took 20.02ms. Allocated memory is still 282.1MB. Free memory was 254.3MB in the beginning and 253.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 20:13:09,780 INFO L158 Benchmark]: RCFGBuilder took 210.92ms. Allocated memory is still 282.1MB. Free memory was 253.2MB in the beginning and 243.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 20:13:09,781 INFO L158 Benchmark]: IcfgTransformer took 66.64ms. Allocated memory is still 282.1MB. Free memory was 243.4MB in the beginning and 240.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 20:13:09,781 INFO L158 Benchmark]: TraceAbstraction took 418.03ms. Allocated memory is still 282.1MB. Free memory was 240.2MB in the beginning and 216.6MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-01-10 20:13:09,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.47ms. Allocated memory was 187.7MB in the beginning and 282.1MB in the end (delta: 94.4MB). Free memory was 134.5MB in the beginning and 256.0MB in the end (delta: -121.5MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.11ms. Allocated memory is still 282.1MB. Free memory was 256.0MB in the beginning and 254.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.02ms. Allocated memory is still 282.1MB. Free memory was 254.3MB in the beginning and 253.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 210.92ms. Allocated memory is still 282.1MB. Free memory was 253.2MB in the beginning and 243.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 66.64ms. Allocated memory is still 282.1MB. Free memory was 243.4MB in the beginning and 240.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 418.03ms. Allocated memory is still 282.1MB. Free memory was 240.2MB in the beginning and 216.6MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. 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: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] unsigned int x = __VERIFIER_nondet_uint(); [L15] unsigned int y = x + 1; VAL [x=1024, y=1025] [L17] COND FALSE !(x < 1024) VAL [x=1024, y=1025] [L22] CALL __VERIFIER_assert(x == y) [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] 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: 0.1s, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s 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 20:13:09,810 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...