./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifeqn1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 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/ifeqn1f.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 8d91257773214a4dabdd84060376021903a7c216 ....................................................................................................................................................................................................................................................................................................................................................................................................... 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-f6fb2bb [2019-11-19 18:24:58,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:24:58,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:24:58,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:24:58,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:24:58,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:24:58,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:24:58,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:24:58,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:24:58,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:24:58,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:24:58,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:24:58,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:24:58,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:24:58,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:24:58,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:24:58,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:24:58,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:24:58,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:24:58,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:24:58,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:24:58,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:24:58,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:24:58,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:24:58,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:24:58,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:24:58,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:24:58,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:24:58,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:24:58,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:24:58,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:24:58,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:24:58,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:24:58,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:24:58,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:24:58,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:24:58,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:24:58,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:24:58,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:24:58,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:24:58,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:24:58,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:24:58,866 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:24:58,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:24:58,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:24:58,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:24:58,868 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:24:58,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:24:58,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:24:58,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:24:58,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:24:58,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:24:58,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:24:58,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:24:58,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:24:58,871 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:24:58,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:24:58,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:24:58,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:24:58,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:24:58,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:24:58,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:24:58,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:24:58,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:24:58,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:24:58,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:24:58,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:24:58,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:24:58,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:24:58,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:24:58,875 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 -> 8d91257773214a4dabdd84060376021903a7c216 [2019-11-19 18:24:59,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:24:59,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:24:59,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:24:59,199 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:24:59,200 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:24:59,202 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-11-19 18:24:59,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a6dd575/3cac1efcae9f4606aaf0b31e36a42310/FLAGd17091bfa [2019-11-19 18:24:59,742 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:24:59,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-11-19 18:24:59,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a6dd575/3cac1efcae9f4606aaf0b31e36a42310/FLAGd17091bfa [2019-11-19 18:25:00,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a6dd575/3cac1efcae9f4606aaf0b31e36a42310 [2019-11-19 18:25:00,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:25:00,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:25:00,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:25:00,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:25:00,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:25:00,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c704cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00, skipping insertion in model container [2019-11-19 18:25:00,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,193 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:25:00,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:25:00,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:25:00,440 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:25:00,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:25:00,474 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:25:00,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00 WrapperNode [2019-11-19 18:25:00,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:25:00,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:25:00,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:25:00,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:25:00,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:25:00,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:25:00,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:25:00,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:25:00,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (1/1) ... [2019-11-19 18:25:00,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:25:00,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:25:00,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:25:00,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:25:00,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (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 [2019-11-19 18:25:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 18:25:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 18:25:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:25:00,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:25:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 18:25:00,920 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:25:00,921 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-19 18:25:00,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:00 BoogieIcfgContainer [2019-11-19 18:25:00,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:25:00,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:25:00,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:25:00,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:25:00,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:25:00" (1/3) ... [2019-11-19 18:25:00,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7166005a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:25:00, skipping insertion in model container [2019-11-19 18:25:00,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:25:00" (2/3) ... [2019-11-19 18:25:00,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7166005a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:25:00, skipping insertion in model container [2019-11-19 18:25:00,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:00" (3/3) ... [2019-11-19 18:25:00,947 INFO L109 eAbstractionObserver]: Analyzing ICFG ifeqn1f.c [2019-11-19 18:25:00,958 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:25:00,965 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:25:00,987 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:25:01,024 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:25:01,025 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:25:01,025 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:25:01,025 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:25:01,025 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:25:01,026 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:25:01,026 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:25:01,026 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:25:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-19 18:25:01,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 18:25:01,047 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:01,048 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:25:01,048 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:01,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:01,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1201566748, now seen corresponding path program 1 times [2019-11-19 18:25:01,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:01,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226807800] [2019-11-19 18:25:01,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:25:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:25:01,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226807800] [2019-11-19 18:25:01,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:25:01,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 18:25:01,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169249923] [2019-11-19 18:25:01,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 18:25:01,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:25:01,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 18:25:01,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 18:25:01,226 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-19 18:25:01,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:25:01,243 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2019-11-19 18:25:01,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 18:25:01,245 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 18:25:01,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:25:01,252 INFO L225 Difference]: With dead ends: 36 [2019-11-19 18:25:01,253 INFO L226 Difference]: Without dead ends: 17 [2019-11-19 18:25:01,255 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 [2019-11-19 18:25:01,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-19 18:25:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-19 18:25:01,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 18:25:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-19 18:25:01,289 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-11-19 18:25:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:25:01,290 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-19 18:25:01,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 18:25:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-19 18:25:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 18:25:01,291 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:01,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:25:01,292 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:01,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:01,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1920794649, now seen corresponding path program 1 times [2019-11-19 18:25:01,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:01,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724997443] [2019-11-19 18:25:01,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:01,312 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 18:25:01,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086898466] [2019-11-19 18:25:01,313 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 [2019-11-19 18:25:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:25:01,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 18:25:01,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:25:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 18:25:01,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724997443] [2019-11-19 18:25:01,433 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 18:25:01,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086898466] [2019-11-19 18:25:01,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:25:01,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 18:25:01,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029302870] [2019-11-19 18:25:01,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 18:25:01,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:25:01,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 18:25:01,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 18:25:01,439 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-11-19 18:25:01,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:25:01,517 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-19 18:25:01,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 18:25:01,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-19 18:25:01,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:25:01,518 INFO L225 Difference]: With dead ends: 31 [2019-11-19 18:25:01,519 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 18:25:01,520 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 [2019-11-19 18:25:01,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 18:25:01,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2019-11-19 18:25:01,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 18:25:01,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-19 18:25:01,530 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-19 18:25:01,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:25:01,530 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-19 18:25:01,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 18:25:01,530 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-19 18:25:01,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 18:25:01,531 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:01,532 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:25:01,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:25:01,734 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:01,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:01,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1948223762, now seen corresponding path program 1 times [2019-11-19 18:25:01,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:01,737 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860864808] [2019-11-19 18:25:01,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:01,753 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 18:25:01,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215992134] [2019-11-19 18:25:01,754 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 [2019-11-19 18:25:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:25:01,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 18:25:01,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:25:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 18:25:01,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860864808] [2019-11-19 18:25:01,844 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 18:25:01,846 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215992134] [2019-11-19 18:25:01,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:25:01,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 18:25:01,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988993618] [2019-11-19 18:25:01,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 18:25:01,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 18:25:01,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 18:25:01,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 18:25:01,849 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2019-11-19 18:25:01,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:25:01,932 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-19 18:25:01,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 18:25:01,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-19 18:25:01,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:25:01,934 INFO L225 Difference]: With dead ends: 36 [2019-11-19 18:25:01,934 INFO L226 Difference]: Without dead ends: 29 [2019-11-19 18:25:01,935 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 18:25:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-19 18:25:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2019-11-19 18:25:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-19 18:25:01,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-11-19 18:25:01,947 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2019-11-19 18:25:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:25:01,948 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-11-19 18:25:01,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 18:25:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-11-19 18:25:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 18:25:01,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:25:01,951 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:25:02,155 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:25:02,156 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:25:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:25:02,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1326513248, now seen corresponding path program 1 times [2019-11-19 18:25:02,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:25:02,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271993663] [2019-11-19 18:25:02,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:25:02,187 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 18:25:02,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241556805] [2019-11-19 18:25:02,190 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 [2019-11-19 18:25:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:25:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:25:02,302 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:25:02,303 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:25:02,515 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 18:25:02,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:25:02 BoogieIcfgContainer [2019-11-19 18:25:02,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:25:02,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:25:02,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:25:02,551 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:25:02,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:25:00" (3/4) ... [2019-11-19 18:25:02,554 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 18:25:02,623 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:25:02,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:25:02,626 INFO L168 Benchmark]: Toolchain (without parser) took 2451.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -72.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:02,626 INFO L168 Benchmark]: CDTParser took 0.70 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. [2019-11-19 18:25:02,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.11 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:02,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:02,629 INFO L168 Benchmark]: Boogie Preprocessor took 24.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:02,630 INFO L168 Benchmark]: RCFGBuilder took 331.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:02,631 INFO L168 Benchmark]: TraceAbstraction took 1623.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.2 MB). Peak memory consumption was 76.2 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:02,631 INFO L168 Benchmark]: Witness Printer took 73.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:25:02,636 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 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 299.11 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 91.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 331.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1623.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.2 MB). Peak memory consumption was 76.2 MB. Max. memory is 11.5 GB. * Witness Printer took 73.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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] long long *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i