./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 10:14:07,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 10:14:07,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 10:14:07,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 10:14:07,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 10:14:07,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 10:14:07,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 10:14:07,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 10:14:07,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 10:14:07,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 10:14:07,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 10:14:07,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 10:14:07,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 10:14:07,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 10:14:07,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 10:14:07,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 10:14:07,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 10:14:07,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 10:14:07,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 10:14:07,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 10:14:07,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 10:14:07,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 10:14:07,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 10:14:07,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 10:14:07,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 10:14:07,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 10:14:07,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 10:14:07,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 10:14:07,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 10:14:07,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 10:14:07,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 10:14:07,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 10:14:07,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 10:14:07,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 10:14:07,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 10:14:07,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 10:14:07,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 10:14:07,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 10:14:07,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 10:14:07,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 10:14:07,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 10:14:07,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 10:14:07,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 10:14:07,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 10:14:07,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 10:14:07,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 10:14:07,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 10:14:07,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 10:14:07,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 10:14:07,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 10:14:07,775 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 10:14:07,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 10:14:07,776 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 10:14:07,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 10:14:07,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 10:14:07,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 10:14:07,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 10:14:07,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 10:14:07,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 10:14:07,777 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 10:14:07,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 10:14:07,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 10:14:07,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 10:14:07,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 10:14:07,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 10:14:07,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 10:14:07,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 10:14:07,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 10:14:07,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 10:14:07,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 10:14:07,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 10:14:07,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 10:14:07,779 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 10:14:07,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 10:14:07,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 10:14:07,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 10:14:07,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 [2021-12-17 10:14:07,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 10:14:07,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 10:14:07,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 10:14:07,992 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 10:14:07,996 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 10:14:07,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2021-12-17 10:14:08,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019593faa/94f882b00cd2405298703d9cf6a36974/FLAGe6db7606a [2021-12-17 10:14:08,456 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 10:14:08,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2021-12-17 10:14:08,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019593faa/94f882b00cd2405298703d9cf6a36974/FLAGe6db7606a [2021-12-17 10:14:08,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019593faa/94f882b00cd2405298703d9cf6a36974 [2021-12-17 10:14:08,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 10:14:08,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 10:14:08,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 10:14:08,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 10:14:08,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 10:14:08,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:14:08" (1/1) ... [2021-12-17 10:14:08,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230cf6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:08, skipping insertion in model container [2021-12-17 10:14:08,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:14:08" (1/1) ... [2021-12-17 10:14:08,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 10:14:08,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 10:14:09,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-12-17 10:14:09,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 10:14:09,138 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 10:14:09,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-12-17 10:14:09,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 10:14:09,207 INFO L208 MainTranslator]: Completed translation [2021-12-17 10:14:09,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09 WrapperNode [2021-12-17 10:14:09,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 10:14:09,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 10:14:09,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 10:14:09,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 10:14:09,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,261 INFO L137 Inliner]: procedures = 29, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 455 [2021-12-17 10:14:09,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 10:14:09,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 10:14:09,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 10:14:09,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 10:14:09,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 10:14:09,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 10:14:09,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 10:14:09,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 10:14:09,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (1/1) ... [2021-12-17 10:14:09,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 10:14:09,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 10:14:09,365 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) [2021-12-17 10:14:09,376 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 [2021-12-17 10:14:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-17 10:14:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 10:14:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-12-17 10:14:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-12-17 10:14:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 10:14:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 10:14:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 10:14:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 10:14:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 10:14:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-12-17 10:14:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 10:14:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-12-17 10:14:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-12-17 10:14:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 10:14:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 10:14:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 10:14:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-12-17 10:14:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-12-17 10:14:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 10:14:09,528 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 10:14:09,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 10:14:09,890 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 10:14:09,897 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 10:14:09,897 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-12-17 10:14:09,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:14:09 BoogieIcfgContainer [2021-12-17 10:14:09,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 10:14:09,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 10:14:09,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 10:14:09,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 10:14:09,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:14:08" (1/3) ... [2021-12-17 10:14:09,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c04a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:14:09, skipping insertion in model container [2021-12-17 10:14:09,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:14:09" (2/3) ... [2021-12-17 10:14:09,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c04a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:14:09, skipping insertion in model container [2021-12-17 10:14:09,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:14:09" (3/3) ... [2021-12-17 10:14:09,906 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2021-12-17 10:14:09,910 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 10:14:09,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 10:14:09,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 10:14:09,951 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 [2021-12-17 10:14:09,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 10:14:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 90 states have (on average 1.6) internal successors, (144), 91 states have internal predecessors, (144), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-17 10:14:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 10:14:09,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 10:14:09,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 10:14:09,972 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 10:14:09,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 10:14:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1385875532, now seen corresponding path program 1 times [2021-12-17 10:14:09,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 10:14:09,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671057015] [2021-12-17 10:14:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 10:14:09,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 10:14:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 10:14:10,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-17 10:14:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 10:14:10,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 10:14:10,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 10:14:10,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671057015] [2021-12-17 10:14:10,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671057015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 10:14:10,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 10:14:10,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 10:14:10,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282722757] [2021-12-17 10:14:10,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 10:14:10,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 10:14:10,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 10:14:10,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 10:14:10,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 10:14:10,136 INFO L87 Difference]: Start difference. First operand has 103 states, 90 states have (on average 1.6) internal successors, (144), 91 states have internal predecessors, (144), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 10:14:10,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 10:14:10,156 INFO L93 Difference]: Finished difference Result 201 states and 320 transitions. [2021-12-17 10:14:10,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 10:14:10,157 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-17 10:14:10,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 10:14:10,162 INFO L225 Difference]: With dead ends: 201 [2021-12-17 10:14:10,162 INFO L226 Difference]: Without dead ends: 97 [2021-12-17 10:14:10,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 10:14:10,192 INFO L933 BasicCegarLoop]: 151 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, 151 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 [2021-12-17 10:14:10,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 10:14:10,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-12-17 10:14:10,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-12-17 10:14:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 86 states have internal predecessors, (129), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 10:14:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 144 transitions. [2021-12-17 10:14:10,219 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 144 transitions. Word has length 26 [2021-12-17 10:14:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 10:14:10,219 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 144 transitions. [2021-12-17 10:14:10,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 10:14:10,219 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 144 transitions. [2021-12-17 10:14:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 10:14:10,221 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 10:14:10,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 10:14:10,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 10:14:10,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 10:14:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 10:14:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1206592093, now seen corresponding path program 1 times [2021-12-17 10:14:10,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 10:14:10,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491279797] [2021-12-17 10:14:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 10:14:10,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 10:14:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 10:14:10,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-17 10:14:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 10:14:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 10:14:10,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 10:14:10,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491279797] [2021-12-17 10:14:10,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491279797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 10:14:10,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 10:14:10,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 10:14:10,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477303058] [2021-12-17 10:14:10,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 10:14:10,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 10:14:10,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 10:14:10,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 10:14:10,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 10:14:10,338 INFO L87 Difference]: Start difference. First operand 97 states and 144 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 10:14:10,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 10:14:10,351 INFO L93 Difference]: Finished difference Result 120 states and 172 transitions. [2021-12-17 10:14:10,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 10:14:10,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-17 10:14:10,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 10:14:10,353 INFO L225 Difference]: With dead ends: 120 [2021-12-17 10:14:10,353 INFO L226 Difference]: Without dead ends: 97 [2021-12-17 10:14:10,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 10:14:10,354 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 4 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 10:14:10,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 277 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 10:14:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-12-17 10:14:10,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-12-17 10:14:10,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 86 states have internal predecessors, (128), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 10:14:10,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 143 transitions. [2021-12-17 10:14:10,361 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 143 transitions. Word has length 26 [2021-12-17 10:14:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 10:14:10,362 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 143 transitions. [2021-12-17 10:14:10,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 10:14:10,363 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 143 transitions. [2021-12-17 10:14:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 10:14:10,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 10:14:10,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 10:14:10,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 10:14:10,364 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 10:14:10,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 10:14:10,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1206532511, now seen corresponding path program 1 times [2021-12-17 10:14:10,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 10:14:10,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112945902] [2021-12-17 10:14:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 10:14:10,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 10:14:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 10:14:10,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-17 10:14:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 10:14:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 10:14:10,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 10:14:10,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112945902] [2021-12-17 10:14:10,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112945902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 10:14:10,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 10:14:10,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 10:14:10,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456640883] [2021-12-17 10:14:10,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 10:14:10,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 10:14:10,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 10:14:10,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 10:14:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 10:14:10,423 INFO L87 Difference]: Start difference. First operand 97 states and 143 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 10:14:10,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 10:14:10,442 INFO L93 Difference]: Finished difference Result 99 states and 145 transitions. [2021-12-17 10:14:10,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 10:14:10,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-17 10:14:10,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 10:14:10,443 INFO L225 Difference]: With dead ends: 99 [2021-12-17 10:14:10,443 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 10:14:10,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 10:14:10,444 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 5 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 10:14:10,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 416 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 10:14:10,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 10:14:10,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 10:14:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-17 10:14:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 10:14:10,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-12-17 10:14:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 10:14:10,446 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 10:14:10,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 10:14:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 10:14:10,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 10:14:10,448 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 10:14:10,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 10:14:10,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 10:14:10,479 INFO L858 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2021-12-17 10:14:10,479 INFO L858 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-12-17 10:14:10,479 INFO L858 garLoopResultBuilder]: For program point L217-2(line 217) no Hoare annotation was computed. [2021-12-17 10:14:10,479 INFO L861 garLoopResultBuilder]: At program point L209(lines 209 225) the Hoare annotation is: true [2021-12-17 10:14:10,480 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_89ENTRY(lines 193 248) the Hoare annotation is: true [2021-12-17 10:14:10,480 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_89EXIT(lines 193 248) no Hoare annotation was computed. [2021-12-17 10:14:10,480 INFO L858 garLoopResultBuilder]: For program point L234(line 234) no Hoare annotation was computed. [2021-12-17 10:14:10,480 INFO L858 garLoopResultBuilder]: For program point L234-2(line 234) no Hoare annotation was computed. [2021-12-17 10:14:10,480 INFO L858 garLoopResultBuilder]: For program point L234-3(line 234) no Hoare annotation was computed. [2021-12-17 10:14:10,480 INFO L858 garLoopResultBuilder]: For program point L234-5(lines 234 246) no Hoare annotation was computed. [2021-12-17 10:14:10,480 INFO L858 garLoopResultBuilder]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2021-12-17 10:14:10,481 INFO L861 garLoopResultBuilder]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2021-12-17 10:14:10,481 INFO L858 garLoopResultBuilder]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2021-12-17 10:14:10,481 INFO L858 garLoopResultBuilder]: For program point L218(line 218) no Hoare annotation was computed. [2021-12-17 10:14:10,481 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-17 10:14:10,481 INFO L858 garLoopResultBuilder]: For program point L214-2(line 214) no Hoare annotation was computed. [2021-12-17 10:14:10,481 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 208) no Hoare annotation was computed. [2021-12-17 10:14:10,481 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 208) no Hoare annotation was computed. [2021-12-17 10:14:10,482 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_89FINAL(lines 193 248) no Hoare annotation was computed. [2021-12-17 10:14:10,482 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 201) no Hoare annotation was computed. [2021-12-17 10:14:10,482 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-17 10:14:10,482 INFO L858 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2021-12-17 10:14:10,482 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-17 10:14:10,482 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-12-17 10:14:10,482 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 241) no Hoare annotation was computed. [2021-12-17 10:14:10,483 INFO L858 garLoopResultBuilder]: For program point L236-1(lines 234 246) no Hoare annotation was computed. [2021-12-17 10:14:10,483 INFO L858 garLoopResultBuilder]: For program point L220(line 220) no Hoare annotation was computed. [2021-12-17 10:14:10,483 INFO L858 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-12-17 10:14:10,483 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-17 10:14:10,483 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 207) no Hoare annotation was computed. [2021-12-17 10:14:10,483 INFO L858 garLoopResultBuilder]: For program point L229(lines 229 232) no Hoare annotation was computed. [2021-12-17 10:14:10,483 INFO L858 garLoopResultBuilder]: For program point L461(lines 461 464) no Hoare annotation was computed. [2021-12-17 10:14:10,484 INFO L854 garLoopResultBuilder]: At program point L461-2(lines 459 466) the Hoare annotation is: (and (not (= |Id_MCDC_95___VERIFIER_assert_~Id_MCDC_103#1| 0)) |Id_MCDC_95_#t~short24#1|) [2021-12-17 10:14:10,484 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 295) no Hoare annotation was computed. [2021-12-17 10:14:10,484 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 269) no Hoare annotation was computed. [2021-12-17 10:14:10,484 INFO L858 garLoopResultBuilder]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2021-12-17 10:14:10,484 INFO L858 garLoopResultBuilder]: For program point L284(lines 284 287) no Hoare annotation was computed. [2021-12-17 10:14:10,484 INFO L861 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: true [2021-12-17 10:14:10,485 INFO L858 garLoopResultBuilder]: For program point L272-1(line 272) no Hoare annotation was computed. [2021-12-17 10:14:10,485 INFO L861 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: true [2021-12-17 10:14:10,485 INFO L858 garLoopResultBuilder]: For program point L297-1(line 297) no Hoare annotation was computed. [2021-12-17 10:14:10,485 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_95ENTRY(lines 280 299) the Hoare annotation is: true [2021-12-17 10:14:10,485 INFO L858 garLoopResultBuilder]: For program point L463(line 463) no Hoare annotation was computed. [2021-12-17 10:14:10,485 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2021-12-17 10:14:10,485 INFO L858 garLoopResultBuilder]: For program point L298(line 298) no Hoare annotation was computed. [2021-12-17 10:14:10,486 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2021-12-17 10:14:10,486 INFO L858 garLoopResultBuilder]: For program point L298-2(line 298) no Hoare annotation was computed. [2021-12-17 10:14:10,486 INFO L858 garLoopResultBuilder]: For program point L261(lines 261 269) no Hoare annotation was computed. [2021-12-17 10:14:10,486 INFO L861 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: true [2021-12-17 10:14:10,486 INFO L858 garLoopResultBuilder]: For program point L290-1(line 290) no Hoare annotation was computed. [2021-12-17 10:14:10,486 INFO L861 garLoopResultBuilder]: At program point L278(lines 249 279) the Hoare annotation is: true [2021-12-17 10:14:10,487 INFO L858 garLoopResultBuilder]: For program point L270-1(lines 250 279) no Hoare annotation was computed. [2021-12-17 10:14:10,487 INFO L858 garLoopResultBuilder]: For program point L270-2(lines 270 277) no Hoare annotation was computed. [2021-12-17 10:14:10,487 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2021-12-17 10:14:10,487 INFO L858 garLoopResultBuilder]: For program point L316(line 316) no Hoare annotation was computed. [2021-12-17 10:14:10,487 INFO L858 garLoopResultBuilder]: For program point L316-2(line 316) no Hoare annotation was computed. [2021-12-17 10:14:10,487 INFO L858 garLoopResultBuilder]: For program point L316-3(line 316) no Hoare annotation was computed. [2021-12-17 10:14:10,487 INFO L858 garLoopResultBuilder]: For program point L316-5(lines 316 328) no Hoare annotation was computed. [2021-12-17 10:14:10,488 INFO L858 garLoopResultBuilder]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2021-12-17 10:14:10,488 INFO L861 garLoopResultBuilder]: At program point L308-3(lines 308 315) the Hoare annotation is: true [2021-12-17 10:14:10,488 INFO L858 garLoopResultBuilder]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2021-12-17 10:14:10,488 INFO L858 garLoopResultBuilder]: For program point L358-2(lines 358 396) no Hoare annotation was computed. [2021-12-17 10:14:10,488 INFO L861 garLoopResultBuilder]: At program point L358-3(lines 358 396) the Hoare annotation is: true [2021-12-17 10:14:10,488 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 10:14:10,488 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 10:14:10,489 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-12-17 10:14:10,489 INFO L858 garLoopResultBuilder]: For program point L408-2(lines 408 415) no Hoare annotation was computed. [2021-12-17 10:14:10,489 INFO L861 garLoopResultBuilder]: At program point L425(lines 420 426) the Hoare annotation is: true [2021-12-17 10:14:10,489 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-12-17 10:14:10,489 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 323) no Hoare annotation was computed. [2021-12-17 10:14:10,489 INFO L858 garLoopResultBuilder]: For program point L318-1(lines 316 328) no Hoare annotation was computed. [2021-12-17 10:14:10,489 INFO L858 garLoopResultBuilder]: For program point L376-2(lines 376 393) no Hoare annotation was computed. [2021-12-17 10:14:10,490 INFO L861 garLoopResultBuilder]: At program point L376-3(lines 376 393) the Hoare annotation is: true [2021-12-17 10:14:10,490 INFO L858 garLoopResultBuilder]: For program point L376-4(lines 376 393) no Hoare annotation was computed. [2021-12-17 10:14:10,490 INFO L861 garLoopResultBuilder]: At program point L418(lines 400 419) the Hoare annotation is: true [2021-12-17 10:14:10,490 INFO L858 garLoopResultBuilder]: For program point L352-2(lines 352 355) no Hoare annotation was computed. [2021-12-17 10:14:10,490 INFO L861 garLoopResultBuilder]: At program point L352-3(lines 352 355) the Hoare annotation is: true [2021-12-17 10:14:10,490 INFO L858 garLoopResultBuilder]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2021-12-17 10:14:10,490 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 314) no Hoare annotation was computed. [2021-12-17 10:14:10,491 INFO L861 garLoopResultBuilder]: At program point L427(lines 427 458) the Hoare annotation is: true [2021-12-17 10:14:10,491 INFO L861 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: true [2021-12-17 10:14:10,491 INFO L858 garLoopResultBuilder]: For program point L361-1(lines 361 364) no Hoare annotation was computed. [2021-12-17 10:14:10,491 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 455) no Hoare annotation was computed. [2021-12-17 10:14:10,491 INFO L861 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2021-12-17 10:14:10,491 INFO L858 garLoopResultBuilder]: For program point L378-1(lines 378 381) no Hoare annotation was computed. [2021-12-17 10:14:10,491 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 307) no Hoare annotation was computed. [2021-12-17 10:14:10,492 INFO L861 garLoopResultBuilder]: At program point L329(lines 300 330) the Hoare annotation is: true [2021-12-17 10:14:10,492 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 10:14:10,492 INFO L861 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: true [2021-12-17 10:14:10,492 INFO L858 garLoopResultBuilder]: For program point L371-1(lines 371 374) no Hoare annotation was computed. [2021-12-17 10:14:10,492 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 10:14:10,492 INFO L858 garLoopResultBuilder]: For program point L389(lines 389 392) no Hoare annotation was computed. [2021-12-17 10:14:10,492 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 397) no Hoare annotation was computed. [2021-12-17 10:14:10,492 INFO L858 garLoopResultBuilder]: For program point L406-2(lines 406 416) no Hoare annotation was computed. [2021-12-17 10:14:10,493 INFO L861 garLoopResultBuilder]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2021-12-17 10:14:10,493 INFO L861 garLoopResultBuilder]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2021-12-17 10:14:10,493 INFO L861 garLoopResultBuilder]: At program point L398(lines 331 399) the Hoare annotation is: true [2021-12-17 10:14:10,493 INFO L861 garLoopResultBuilder]: At program point L365(line 365) the Hoare annotation is: true [2021-12-17 10:14:10,493 INFO L858 garLoopResultBuilder]: For program point L365-1(lines 365 368) no Hoare annotation was computed. [2021-12-17 10:14:10,493 INFO L858 garLoopResultBuilder]: For program point avoid_zeroEXIT(lines 9 15) no Hoare annotation was computed. [2021-12-17 10:14:10,493 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-12-17 10:14:10,494 INFO L858 garLoopResultBuilder]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2021-12-17 10:14:10,494 INFO L861 garLoopResultBuilder]: At program point avoid_zeroENTRY(lines 9 15) the Hoare annotation is: true [2021-12-17 10:14:10,496 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-17 10:14:10,497 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 10:14:10,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 10:14:10 BoogieIcfgContainer [2021-12-17 10:14:10,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 10:14:10,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 10:14:10,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 10:14:10,507 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 10:14:10,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:14:09" (3/4) ... [2021-12-17 10:14:10,509 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 10:14:10,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2021-12-17 10:14:10,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2021-12-17 10:14:10,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2021-12-17 10:14:10,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2021-12-17 10:14:10,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-12-17 10:14:10,520 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-17 10:14:10,520 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-17 10:14:10,521 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 10:14:10,521 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 10:14:10,570 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 10:14:10,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 10:14:10,570 INFO L158 Benchmark]: Toolchain (without parser) took 1710.60ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.8MB in the beginning and 96.1MB in the end (delta: -28.3MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2021-12-17 10:14:10,571 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 33.5MB in the beginning and 33.5MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 10:14:10,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.69ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 67.2MB in the end (delta: 313.9kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 10:14:10,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.68ms. Allocated memory is still 98.6MB. Free memory was 67.2MB in the beginning and 63.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 10:14:10,571 INFO L158 Benchmark]: Boogie Preprocessor took 58.67ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 60.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 10:14:10,572 INFO L158 Benchmark]: RCFGBuilder took 577.98ms. Allocated memory is still 98.6MB. Free memory was 60.6MB in the beginning and 62.4MB in the end (delta: -1.8MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2021-12-17 10:14:10,572 INFO L158 Benchmark]: TraceAbstraction took 605.13ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 61.8MB in the beginning and 63.4MB in the end (delta: -1.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2021-12-17 10:14:10,572 INFO L158 Benchmark]: Witness Printer took 63.62ms. Allocated memory is still 127.9MB. Free memory was 63.4MB in the beginning and 96.1MB in the end (delta: -32.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-12-17 10:14:10,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 33.5MB in the beginning and 33.5MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.69ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 67.2MB in the end (delta: 313.9kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.68ms. Allocated memory is still 98.6MB. Free memory was 67.2MB in the beginning and 63.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.67ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 60.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.98ms. Allocated memory is still 98.6MB. Free memory was 60.6MB in the beginning and 62.4MB in the end (delta: -1.8MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 605.13ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 61.8MB in the beginning and 63.4MB in the end (delta: -1.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Witness Printer took 63.62ms. Allocated memory is still 127.9MB. Free memory was 63.4MB in the beginning and 96.1MB in the end (delta: -32.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, 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, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 844 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 412 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 432 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 69 PreInvPairs, 93 NumberOfFragments, 30 HoareAnnotationTreeSize, 69 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: !(Id_MCDC_103 == 0) && aux-( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295-aux RESULT: Ultimate proved your program to be correct! [2021-12-17 10:14:10,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE