./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/modpf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/array-fpi/modpf.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1557648863313236f1d48be8d1696695bc98e12 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 22:30:23,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:30:23,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:30:23,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:30:23,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:30:23,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:30:23,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:30:23,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:30:23,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:30:23,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:30:23,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:30:23,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:30:23,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:30:23,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:30:23,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:30:23,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:30:23,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:30:23,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:30:23,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:30:23,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:30:23,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:30:23,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:30:23,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:30:23,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:30:23,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:30:23,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:30:23,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:30:23,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:30:23,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:30:23,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:30:23,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:30:23,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:30:23,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:30:23,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:30:23,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:30:23,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:30:23,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:30:23,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:30:23,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:30:23,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:30:23,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:30:23,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:30:23,761 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:30:23,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:30:23,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:30:23,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:30:23,771 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:30:23,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:30:23,772 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:30:23,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:30:23,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:30:23,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:30:23,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:30:23,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:30:23,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:30:23,774 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:30:23,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:30:23,776 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:30:23,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:30:23,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:30:23,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:30:23,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:30:23,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:30:23,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:30:23,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:30:23,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:30:23,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:30:23,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:30:23,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:30:23,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:30:23,784 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(__VERIFIER_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 -> b1557648863313236f1d48be8d1696695bc98e12 [2019-11-27 22:30:24,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:30:24,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:30:24,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:30:24,122 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:30:24,123 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:30:24,125 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/modpf.c [2019-11-27 22:30:24,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3dc4c70/a24ed15b9b2f4b02a945a6a83cda6fc0/FLAG250daf241 [2019-11-27 22:30:24,562 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:30:24,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modpf.c [2019-11-27 22:30:24,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3dc4c70/a24ed15b9b2f4b02a945a6a83cda6fc0/FLAG250daf241 [2019-11-27 22:30:24,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3dc4c70/a24ed15b9b2f4b02a945a6a83cda6fc0 [2019-11-27 22:30:24,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:30:24,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:30:24,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:30:24,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:30:24,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:30:24,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:30:24" (1/1) ... [2019-11-27 22:30:24,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9da52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:24, skipping insertion in model container [2019-11-27 22:30:24,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:30:24" (1/1) ... [2019-11-27 22:30:24,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:30:24,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:30:25,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:30:25,146 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:30:25,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:30:25,184 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:30:25,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25 WrapperNode [2019-11-27 22:30:25,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:30:25,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:30:25,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:30:25,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:30:25,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:30:25,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:30:25,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:30:25,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:30:25,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... [2019-11-27 22:30:25,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:30:25,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:30:25,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:30:25,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:30:25,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:30:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 22:30:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 22:30:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 22:30:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:30:25,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:30:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 22:30:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 22:30:25,594 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:30:25,595 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 22:30:25,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:30:25 BoogieIcfgContainer [2019-11-27 22:30:25,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:30:25,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:30:25,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:30:25,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:30:25,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:30:24" (1/3) ... [2019-11-27 22:30:25,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2992d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:30:25, skipping insertion in model container [2019-11-27 22:30:25,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:25" (2/3) ... [2019-11-27 22:30:25,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2992d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:30:25, skipping insertion in model container [2019-11-27 22:30:25,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:30:25" (3/3) ... [2019-11-27 22:30:25,628 INFO L109 eAbstractionObserver]: Analyzing ICFG modpf.c [2019-11-27 22:30:25,656 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:30:25,669 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:30:25,696 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:30:25,721 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:30:25,721 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:30:25,721 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:30:25,721 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:30:25,721 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:30:25,721 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:30:25,722 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:30:25,722 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:30:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-27 22:30:25,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 22:30:25,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:25,741 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:25,742 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:25,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1486647931, now seen corresponding path program 1 times [2019-11-27 22:30:25,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:25,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928103535] [2019-11-27 22:30:25,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:30:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:30:25,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928103535] [2019-11-27 22:30:25,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:30:25,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:30:25,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261725624] [2019-11-27 22:30:25,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 22:30:25,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:30:25,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 22:30:25,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:30:25,901 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-11-27 22:30:25,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:30:25,919 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2019-11-27 22:30:25,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 22:30:25,921 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 22:30:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:30:25,931 INFO L225 Difference]: With dead ends: 33 [2019-11-27 22:30:25,931 INFO L226 Difference]: Without dead ends: 15 [2019-11-27 22:30:25,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:30:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-27 22:30:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-27 22:30:25,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-27 22:30:25,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-27 22:30:25,971 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-11-27 22:30:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:30:25,972 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-27 22:30:25,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 22:30:25,972 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-27 22:30:25,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 22:30:25,973 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:25,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:25,973 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:25,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:25,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1772723449, now seen corresponding path program 1 times [2019-11-27 22:30:25,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:25,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954324455] [2019-11-27 22:30:25,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:25,993 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:30:25,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527652009] [2019-11-27 22:30:25,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:30:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:30:26,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 22:30:26,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:30:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:30:26,100 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954324455] [2019-11-27 22:30:26,101 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-27 22:30:26,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527652009] [2019-11-27 22:30:26,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:30:26,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:30:26,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248969888] [2019-11-27 22:30:26,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:30:26,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:30:26,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:30:26,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:30:26,105 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-27 22:30:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:30:26,149 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-11-27 22:30:26,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:30:26,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-27 22:30:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:30:26,151 INFO L225 Difference]: With dead ends: 27 [2019-11-27 22:30:26,151 INFO L226 Difference]: Without dead ends: 17 [2019-11-27 22:30:26,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:30:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-27 22:30:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-27 22:30:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-27 22:30:26,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-27 22:30:26,157 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2019-11-27 22:30:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:30:26,158 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-27 22:30:26,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:30:26,158 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-27 22:30:26,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 22:30:26,159 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:26,160 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:26,363 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:30:26,363 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:26,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:26,364 INFO L82 PathProgramCache]: Analyzing trace with hash 827904471, now seen corresponding path program 1 times [2019-11-27 22:30:26,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:26,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782780081] [2019-11-27 22:30:26,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:26,385 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:30:26,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252286688] [2019-11-27 22:30:26,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:30:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:30:26,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 22:30:26,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:30:26,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-27 22:30:26,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782780081] [2019-11-27 22:30:26,473 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-27 22:30:26,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252286688] [2019-11-27 22:30:26,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:30:26,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:30:26,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471286797] [2019-11-27 22:30:26,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:30:26,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:30:26,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:30:26,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:30:26,475 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-11-27 22:30:26,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:30:26,519 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-11-27 22:30:26,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:30:26,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-27 22:30:26,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:30:26,520 INFO L225 Difference]: With dead ends: 32 [2019-11-27 22:30:26,521 INFO L226 Difference]: Without dead ends: 25 [2019-11-27 22:30:26,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:30:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-27 22:30:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2019-11-27 22:30:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-27 22:30:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-27 22:30:26,526 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-11-27 22:30:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:30:26,526 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-27 22:30:26,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:30:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-27 22:30:26,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 22:30:26,527 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:26,528 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:26,728 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:30:26,729 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:26,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:26,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1602337035, now seen corresponding path program 1 times [2019-11-27 22:30:26,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:26,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417864424] [2019-11-27 22:30:26,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:26,747 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:30:26,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282410339] [2019-11-27 22:30:26,747 INFO L94 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 [2019-11-27 22:30:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:30:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:30:26,847 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 22:30:26,847 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:30:27,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:30:27,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:30:27 BoogieIcfgContainer [2019-11-27 22:30:27,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:30:27,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:30:27,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:30:27,082 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:30:27,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:30:25" (3/4) ... [2019-11-27 22:30:27,085 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 22:30:27,138 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:30:27,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:30:27,141 INFO L168 Benchmark]: Toolchain (without parser) took 2192.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 960.4 MB in the beginning and 985.3 MB in the end (delta: -24.9 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:27,141 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:30:27,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.12 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:27,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:27,144 INFO L168 Benchmark]: Boogie Preprocessor took 24.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:27,145 INFO L168 Benchmark]: RCFGBuilder took 278.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:27,146 INFO L168 Benchmark]: TraceAbstraction took 1483.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.1 MB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:27,146 INFO L168 Benchmark]: Witness Printer took 56.14 ms. Allocated memory is still 1.1 GB. Free memory was 992.1 MB in the beginning and 985.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:27,151 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.12 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 107.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 278.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1483.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 992.1 MB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 11.5 GB. * Witness Printer took 56.14 ms. Allocated memory is still 1.1 GB. Free memory was 992.1 MB in the beginning and 985.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] int sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i