./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/ldv-regression/test10.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 71501a10523f048daeb674450fd4ef1923432fa1 ................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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_1.3.100.v20150511-1540.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/ldv-regression/test10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 71501a10523f048daeb674450fd4ef1923432fa1 ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:43:41,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:43:41,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:43:41,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:43:41,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:43:41,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:43:41,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:43:41,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:43:41,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:43:41,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:43:41,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:43:41,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:43:41,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:43:41,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:43:41,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:43:41,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:43:41,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:43:41,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:43:41,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:43:41,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:43:41,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:43:41,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:43:41,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:43:41,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:43:41,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:43:41,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:43:41,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:43:41,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:43:41,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:43:41,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:43:41,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:43:41,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:43:41,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:43:41,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:43:41,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:43:41,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:43:41,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:43:41,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:43:41,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:43:41,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:43:41,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:43:41,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:43:41,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:43:41,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:43:41,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:43:41,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:43:41,508 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:43:41,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:43:41,508 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:43:41,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:43:41,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:43:41,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:43:41,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:43:41,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:43:41,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:43:41,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:43:41,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:43:41,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:43:41,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:43:41,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:43:41,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:43:41,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:43:41,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:43:41,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:41,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:43:41,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:43:41,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:43:41,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:43:41,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:43:41,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:43:41,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:43:41,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 71501a10523f048daeb674450fd4ef1923432fa1 [2020-10-20 00:43:41,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:43:41,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:43:41,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:43:41,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:43:41,746 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:43:41,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test10.c [2020-10-20 00:43:41,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc8cc430/137b91220a21437ab2eb0386ee2e0427/FLAGc32bfdd1b [2020-10-20 00:43:42,272 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:43:42,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test10.c [2020-10-20 00:43:42,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc8cc430/137b91220a21437ab2eb0386ee2e0427/FLAGc32bfdd1b [2020-10-20 00:43:42,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc8cc430/137b91220a21437ab2eb0386ee2e0427 [2020-10-20 00:43:42,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:43:42,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:43:42,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:42,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:43:42,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:43:42,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:42,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b06922a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42, skipping insertion in model container [2020-10-20 00:43:42,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:42,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:43:42,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:43:42,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:42,964 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:43:42,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:42,996 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:43:42,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42 WrapperNode [2020-10-20 00:43:42,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:42,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:42,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:43:42,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:43:43,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:43,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:43:43,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:43:43,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:43:43,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... [2020-10-20 00:43:43,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:43:43,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:43:43,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:43:43,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:43:43,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 00:43:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 00:43:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:43:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 00:43:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:43:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:43:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:43:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:43:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:43:43,452 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:43:43,452 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:43:43,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:43 BoogieIcfgContainer [2020-10-20 00:43:43,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:43:43,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:43:43,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:43:43,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:43:43,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:43:42" (1/3) ... [2020-10-20 00:43:43,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae25ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:43, skipping insertion in model container [2020-10-20 00:43:43,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:42" (2/3) ... [2020-10-20 00:43:43,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae25ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:43, skipping insertion in model container [2020-10-20 00:43:43,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:43" (3/3) ... [2020-10-20 00:43:43,464 INFO L111 eAbstractionObserver]: Analyzing ICFG test10.c [2020-10-20 00:43:43,493 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:43:43,502 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:43:43,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:43:43,566 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:43:43,566 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:43:43,566 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:43:43,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:43:43,567 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:43:43,567 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:43:43,567 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:43:43,567 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:43:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-10-20 00:43:43,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 00:43:43,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:43,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 00:43:43,592 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:43,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:43,599 INFO L82 PathProgramCache]: Analyzing trace with hash 889477034, now seen corresponding path program 1 times [2020-10-20 00:43:43,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:43:43,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371739222] [2020-10-20 00:43:43,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:43:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:44,011 ERROR L253 erpolLogProxyWrapper]: Interpolant 2 not inductive [2020-10-20 00:43:44,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:43:44,020 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-20 00:43:44,032 INFO L168 Benchmark]: Toolchain (without parser) took 1350.63 ms. Allocated memory was 35.7 MB in the beginning and 47.2 MB in the end (delta: 11.5 MB). Free memory was 14.3 MB in the beginning and 20.8 MB in the end (delta: -6.5 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:44,034 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 9.1 MB in the beginning and 9.1 MB in the end (delta: 43.3 kB). Peak memory consumption was 43.3 kB. Max. memory is 14.3 GB. [2020-10-20 00:43:44,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.04 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 13.5 MB in the beginning and 24.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:44,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.29 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 22.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:44,043 INFO L168 Benchmark]: Boogie Preprocessor took 24.78 ms. Allocated memory is still 44.0 MB. Free memory was 22.9 MB in the beginning and 21.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:44,044 INFO L168 Benchmark]: RCFGBuilder took 392.87 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 21.4 MB in the beginning and 13.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:44,047 INFO L168 Benchmark]: TraceAbstraction took 571.43 ms. Allocated memory was 46.1 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Free memory was 12.8 MB in the beginning and 20.8 MB in the end (delta: -8.0 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:43:44,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 9.1 MB in the beginning and 9.1 MB in the end (delta: 43.3 kB). Peak memory consumption was 43.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 313.04 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 13.5 MB in the beginning and 24.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 38.29 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 22.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 24.78 ms. Allocated memory is still 44.0 MB. Free memory was 22.9 MB in the beginning and 21.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 392.87 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 21.4 MB in the beginning and 13.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 571.43 ms. Allocated memory was 46.1 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Free memory was 12.8 MB in the beginning and 20.8 MB in the end (delta: -8.0 MB). There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:43:46,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:43:46,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:43:46,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:43:46,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:43:46,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:43:46,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:43:46,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:43:46,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:43:46,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:43:46,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:43:46,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:43:46,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:43:46,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:43:46,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:43:46,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:43:46,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:43:46,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:43:46,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:43:46,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:43:46,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:43:46,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:43:46,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:43:46,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:43:46,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:43:46,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:43:46,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:43:46,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:43:46,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:43:46,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:43:46,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:43:46,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:43:46,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:43:46,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:43:46,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:43:46,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:43:46,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:43:46,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:43:46,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:43:46,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:43:46,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:43:46,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:43:46,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:43:46,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:43:46,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:43:46,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:43:46,439 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:43:46,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:43:46,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:43:46,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:43:46,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:43:46,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:43:46,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:43:46,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:43:46,442 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:43:46,443 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:43:46,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:43:46,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:43:46,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:43:46,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:43:46,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:43:46,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:43:46,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:43:46,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:43:46,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:46,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:43:46,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:43:46,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:43:46,446 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:43:46,446 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:43:46,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:43:46,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:43:46,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:43:46,447 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 71501a10523f048daeb674450fd4ef1923432fa1 [2020-10-20 00:43:46,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:43:46,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:43:46,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:43:46,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:43:46,663 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:43:46,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test10.c [2020-10-20 00:43:46,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42975d151/d48d38842938442db2388d93da56bbef/FLAG7865f3678 [2020-10-20 00:43:47,203 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:43:47,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test10.c [2020-10-20 00:43:47,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42975d151/d48d38842938442db2388d93da56bbef/FLAG7865f3678 [2020-10-20 00:43:47,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42975d151/d48d38842938442db2388d93da56bbef [2020-10-20 00:43:47,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:43:47,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:43:47,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:47,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:43:47,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:43:47,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:47,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74fbbb1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47, skipping insertion in model container [2020-10-20 00:43:47,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:47,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:43:47,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:43:47,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:47,895 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:43:47,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:43:47,937 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:43:47,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47 WrapperNode [2020-10-20 00:43:47,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:43:47,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:47,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:43:47,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:43:47,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:47,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:47,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:43:47,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:43:47,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:43:47,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:43:47,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:47,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:47,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:47,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:48,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:48,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:48,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... [2020-10-20 00:43:48,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:43:48,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:43:48,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:43:48,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:43:48,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:43:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 00:43:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 00:43:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:43:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-10-20 00:43:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 00:43:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:43:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:43:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:43:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:43:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:43:48,750 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:43:48,750 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:43:48,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:48 BoogieIcfgContainer [2020-10-20 00:43:48,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:43:48,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:43:48,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:43:48,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:43:48,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:43:47" (1/3) ... [2020-10-20 00:43:48,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c73c410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:48, skipping insertion in model container [2020-10-20 00:43:48,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:43:47" (2/3) ... [2020-10-20 00:43:48,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c73c410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:43:48, skipping insertion in model container [2020-10-20 00:43:48,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:48" (3/3) ... [2020-10-20 00:43:48,761 INFO L111 eAbstractionObserver]: Analyzing ICFG test10.c [2020-10-20 00:43:48,777 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:43:48,785 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:43:48,795 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:43:48,814 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:43:48,814 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:43:48,814 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:43:48,814 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:43:48,815 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:43:48,815 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:43:48,815 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:43:48,815 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:43:48,828 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-10-20 00:43:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 00:43:48,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:43:48,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 00:43:48,834 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:43:48,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:43:48,839 INFO L82 PathProgramCache]: Analyzing trace with hash 889477034, now seen corresponding path program 1 times [2020-10-20 00:43:48,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:43:48,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220280760] [2020-10-20 00:43:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:43:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:49,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-20 00:43:49,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:43:49,269 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:49,271 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 923 treesize of output 939 [2020-10-20 00:43:49,283 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 2, 2, 4, 2, 4, 1] term [2020-10-20 00:43:49,292 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:49,295 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 4, 2, 4, 1] term [2020-10-20 00:43:49,295 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,310 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 3, 5, 2, 2, 2, 4, 2, 4, 2, 3, 1] term [2020-10-20 00:43:49,310 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:49,314 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 2, 2, 2, 2, 4, 2, 4, 2, 3, 1] term [2020-10-20 00:43:49,314 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:49,317 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 3, 2, 2, 2, 2, 4, 2, 4, 2, 3, 1] term [2020-10-20 00:43:49,317 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,323 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 6, 2, 5, 2, 4, 2, 4, 2, 3, 2, 3, 1] term [2020-10-20 00:43:49,323 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,326 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 4, 2, 3, 3, 3, 4, 2, 4, 2, 4, 2, 4, 2, 4, 1] term [2020-10-20 00:43:49,326 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,328 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 2, 3, 2, 3, 4, 2, 4, 2, 4, 2, 4, 2, 4, 1] term [2020-10-20 00:43:49,329 INFO L603 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-10-20 00:43:49,331 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 2, 2, 2, 4, 2, 4, 2, 4, 2, 3, 1] term [2020-10-20 00:43:49,331 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-20 00:43:49,335 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 4, 2, 4, 2, 3, 2, 3, 2, 3, 1] term [2020-10-20 00:43:49,336 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,337 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 4, 2, 3, 2, 3, 2, 3, 2, 3, 1] term [2020-10-20 00:43:49,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,339 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1] term [2020-10-20 00:43:49,340 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,343 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 3, 2, 2, 4, 2, 4, 2, 4, 2, 4, 1] term [2020-10-20 00:43:49,343 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-20 00:43:49,345 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 3, 2, 2, 3, 2, 4, 2, 4, 2, 4, 1] term [2020-10-20 00:43:49,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:49,348 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 3, 2, 2, 3, 2, 4, 2, 4, 2, 4, 1] term [2020-10-20 00:43:49,348 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,350 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 2, 2, 4, 2, 4, 2, 3, 2, 3, 1] term [2020-10-20 00:43:49,350 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:49,352 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 4, 2, 4, 2, 3, 2, 3, 1] term [2020-10-20 00:43:49,353 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:49,376 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:43:50,655 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 122 DAG size of output: 44 [2020-10-20 00:43:50,657 INFO L625 ElimStorePlain]: treesize reduction 24734, result has 0.2 percent of original size [2020-10-20 00:43:50,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220280760] [2020-10-20 00:43:50,666 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:43:50,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1635045728] [2020-10-20 00:43:50,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 00:43:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:50,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-20 00:43:50,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:43:50,933 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:50,934 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 543 treesize of output 533 [2020-10-20 00:43:50,938 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 6, 2, 2, 2, 2, 2, 4, 2, 3, 1] term [2020-10-20 00:43:50,938 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,940 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 6, 2, 2, 2, 2, 2, 4, 2, 3, 1] term [2020-10-20 00:43:50,940 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,942 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 2, 2, 4, 2, 3, 1] term [2020-10-20 00:43:50,942 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,946 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 4, 2, 3, 1] term [2020-10-20 00:43:50,947 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,948 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 3, 1] term [2020-10-20 00:43:50,948 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,951 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 1] term [2020-10-20 00:43:50,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,953 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-10-20 00:43:50,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,956 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-10-20 00:43:50,956 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,958 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 2, 4, 1] term [2020-10-20 00:43:50,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,959 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-10-20 00:43:50,960 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,964 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 8, 3, 7, 3, 2, 2, 2, 2, 5, 2, 2, 3, 3, 2, 2, 1] term [2020-10-20 00:43:50,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,966 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 3, 7, 3, 2, 2, 2, 2, 5, 2, 2, 3, 3, 2, 2, 1] term [2020-10-20 00:43:50,966 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,973 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 8, 2, 6, 2, 4, 2, 3, 2, 4, 2, 3, 1] term [2020-10-20 00:43:50,973 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,975 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 3, 4, 3, 7, 3, 6, 2, 2, 2, 5, 3, 4, 3, 3, 3, 2, 2, 2, 1] term [2020-10-20 00:43:50,976 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,977 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 3, 3, 3, 7, 3, 6, 2, 2, 2, 5, 3, 4, 3, 3, 3, 2, 2, 2, 1] term [2020-10-20 00:43:50,978 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,981 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 3, 3, 3, 7, 3, 6, 2, 2, 2, 5, 3, 4, 3, 3, 3, 2, 2, 2, 1] term [2020-10-20 00:43:50,981 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,983 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 3, 3, 3, 7, 3, 6, 2, 2, 2, 5, 3, 4, 3, 3, 3, 2, 2, 2, 1] term [2020-10-20 00:43:50,983 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,985 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 3, 7, 3, 2, 2, 2, 2, 4, 2, 2, 3, 3, 2, 3, 1] term [2020-10-20 00:43:50,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:50,987 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 3, 7, 3, 2, 2, 2, 2, 4, 2, 2, 3, 3, 2, 3, 1] term [2020-10-20 00:43:50,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,991 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-10-20 00:43:50,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,995 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 2, 6, 2, 6, 2, 2, 2, 5, 3, 4, 3, 3, 3, 2, 2, 2, 1] term [2020-10-20 00:43:50,995 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-20 00:43:50,996 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 2, 2, 2, 2, 2, 5, 3, 3, 3, 3, 2, 2, 1] term [2020-10-20 00:43:50,997 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:50,998 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 2, 5, 3, 3, 3, 3, 2, 2, 1] term [2020-10-20 00:43:50,999 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,000 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 5, 2, 1] term [2020-10-20 00:43:51,000 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,001 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 1] term [2020-10-20 00:43:51,002 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,003 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 1] term [2020-10-20 00:43:51,003 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 00:43:51,004 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-10-20 00:43:51,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,007 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 5, 3, 3, 3, 3, 2, 2, 1] term [2020-10-20 00:43:51,008 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,009 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 3, 3, 3, 3, 2, 2, 1] term [2020-10-20 00:43:51,009 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,012 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 6, 2, 2, 2, 2, 2, 4, 3, 3, 3, 2, 2, 2, 1] term [2020-10-20 00:43:51,013 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,016 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 3, 4, 3, 7, 3, 6, 2, 2, 2, 5, 3, 4, 3, 3, 3, 2, 2, 2, 1] term [2020-10-20 00:43:51,016 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,024 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 00:43:51,886 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 45 [2020-10-20 00:43:51,887 INFO L625 ElimStorePlain]: treesize reduction 8566, result has 0.7 percent of original size [2020-10-20 00:43:51,889 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:43:51,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657043325] [2020-10-20 00:43:51,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:43:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:43:51,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 29 conjunts are in the unsatisfiable core [2020-10-20 00:43:51,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:43:51,975 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 00:43:51,976 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2894 treesize of output 2772 [2020-10-20 00:43:51,979 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 7, 2, 2, 2, 2, 2, 3, 2, 2, 2, 5, 2, 4, 2, 2, 2, 3, 2, 4, 2, 2, 2, 2, 1] term [2020-10-20 00:43:51,979 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,982 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 7, 2, 2, 2, 2, 2, 3, 2, 2, 2, 5, 2, 4, 2, 2, 2, 3, 2, 4, 2, 2, 2, 2, 1] term [2020-10-20 00:43:51,983 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,984 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 5, 2, 4, 2, 2, 2, 3, 2, 4, 2, 2, 2, 2, 1] term [2020-10-20 00:43:51,985 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,986 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 2, 4, 1] term [2020-10-20 00:43:51,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,988 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 2, 4, 1] term [2020-10-20 00:43:51,988 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,989 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 2, 4, 1] term [2020-10-20 00:43:51,990 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,991 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 4, 1] term [2020-10-20 00:43:51,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,992 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-10-20 00:43:51,993 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,994 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 2, 4, 1] term [2020-10-20 00:43:51,995 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:51,996 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 5, 2, 4, 1] term [2020-10-20 00:43:52,005 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:52,007 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 2, 4, 1] term [2020-10-20 00:43:52,007 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:52,008 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 5, 2, 4, 2, 2, 2, 3, 2, 4, 2, 2, 2, 2, 1] term [2020-10-20 00:43:52,009 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:52,010 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 2, 5, 2, 4, 2, 2, 2, 3, 2, 4, 2, 2, 2, 2, 1] term [2020-10-20 00:43:52,011 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:52,016 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 7, 2, 7, 2, 2, 2, 2, 2, 3, 2, 2, 2, 5, 2, 4, 2, 2, 2, 3, 2, 4, 2, 2, 2, 2, 1] term [2020-10-20 00:43:52,016 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:43:52,030 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-10-20 00:43:52,475 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 35 [2020-10-20 00:43:52,476 INFO L625 ElimStorePlain]: treesize reduction 6183, result has 0.7 percent of original size [2020-10-20 00:43:52,478 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:43:52,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:43:52,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 00:43:52,479 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 00:43:52,479 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:43:53,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk,2 mathsat -unsat_core_generation=3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:43:53,108 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 00:43:53,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:43:53 BoogieIcfgContainer [2020-10-20 00:43:53,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:43:53,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:43:53,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:43:53,110 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:43:53,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:43:48" (3/4) ... [2020-10-20 00:43:53,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:43:53,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:43:53,116 INFO L168 Benchmark]: Toolchain (without parser) took 5556.27 ms. Allocated memory was 35.1 MB in the beginning and 60.8 MB in the end (delta: 25.7 MB). Free memory was 17.1 MB in the beginning and 21.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,117 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 33.6 MB. Free memory was 10.9 MB in the beginning and 10.9 MB in the end (delta: 45.4 kB). Peak memory consumption was 45.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.92 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 16.2 MB in the beginning and 24.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.51 ms. Allocated memory is still 43.5 MB. Free memory was 24.6 MB in the beginning and 22.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,120 INFO L168 Benchmark]: Boogie Preprocessor took 24.43 ms. Allocated memory is still 43.5 MB. Free memory was 22.7 MB in the beginning and 21.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,121 INFO L168 Benchmark]: RCFGBuilder took 744.78 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 21.2 MB in the beginning and 12.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,123 INFO L168 Benchmark]: TraceAbstraction took 4355.44 ms. Allocated memory was 45.6 MB in the beginning and 60.8 MB in the end (delta: 15.2 MB). Free memory was 12.1 MB in the beginning and 22.2 MB in the end (delta: -10.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,123 INFO L168 Benchmark]: Witness Printer took 5.51 ms. Allocated memory is still 60.8 MB. Free memory was 22.2 MB in the beginning and 21.5 MB in the end (delta: 678.3 kB). Peak memory consumption was 678.3 kB. Max. memory is 14.3 GB. [2020-10-20 00:43:53,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 33.6 MB. Free memory was 10.9 MB in the beginning and 10.9 MB in the end (delta: 45.4 kB). Peak memory consumption was 45.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 371.92 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 16.2 MB in the beginning and 24.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 43.51 ms. Allocated memory is still 43.5 MB. Free memory was 24.6 MB in the beginning and 22.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 24.43 ms. Allocated memory is still 43.5 MB. Free memory was 22.7 MB in the beginning and 21.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 744.78 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 21.2 MB in the beginning and 12.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4355.44 ms. Allocated memory was 45.6 MB in the beginning and 60.8 MB in the end (delta: 15.2 MB). Free memory was 12.1 MB in the beginning and 22.2 MB in the end (delta: -10.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. * Witness Printer took 5.51 ms. Allocated memory is still 60.8 MB. Free memory was 22.2 MB in the beginning and 21.5 MB in the end (delta: 678.3 kB). Peak memory consumption was 678.3 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L7] int a, b; [L8] int *p1, *p2; [L9] int **pp1, **pp2; [L20] int *px; [L22] p1 = &a [L23] p2 = &b [L25] pp1 = &p1 [L26] pp2 = &p2 [L28] b = 1 [L29] a = 5 [L31] EXPR \read(a) [L31] a-- [L12] int v = __VERIFIER_nondet_int(); [L13] EXPR \read(**pp2) [L13] *pp1 = *pp2 [L14] pp2 = pp1 [L15] return v; [L33] a = f() [L35] a = 0 [L36] b = 0 [L38] EXPR \read(**pp2) [L38] px = *pp2 [L40] a = 7 [L41] b = 8 [L43] EXPR \read(*p1) [L43] *p1 != 8 || *px != 8 [L43] COND TRUE *p1 != 8 || *px != 8 [L3] __assert_fail("0", "test10.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 4.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...