./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/modpf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer --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 0.1.24-6b5699a [2019-11-25 08:47:17,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:17,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:17,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:17,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:17,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:17,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:17,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:17,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:17,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:17,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:17,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:17,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:17,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:17,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:17,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:17,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:17,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:17,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:17,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:17,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:17,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:17,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:17,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:17,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:17,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:17,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:17,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:17,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:17,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:17,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:17,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:17,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:17,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:17,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:17,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:17,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:17,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:17,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:17,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:17,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:17,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:47:17,867 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:17,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:17,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:17,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:17,868 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:17,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:17,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:47:17,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:17,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:47:17,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:17,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:47:17,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:47:17,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:47:17,870 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:47:17,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:17,870 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:17,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:47:17,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:17,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:17,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:47:17,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:47:17,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:47:17,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:17,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:47:17,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:47:17,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:17,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:47:17,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:47:17,872 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer 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 [2019-11-25 08:47:18,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:18,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:18,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:18,054 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:18,055 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:18,056 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/../../sv-benchmarks/c/array-fpi/modpf.c [2019-11-25 08:47:18,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/data/f7a6863a2/c492268b34ed46cfad0622a1eb0ec0e6/FLAGba06036a5 [2019-11-25 08:47:18,499 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:18,499 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/sv-benchmarks/c/array-fpi/modpf.c [2019-11-25 08:47:18,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/data/f7a6863a2/c492268b34ed46cfad0622a1eb0ec0e6/FLAGba06036a5 [2019-11-25 08:47:18,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/data/f7a6863a2/c492268b34ed46cfad0622a1eb0ec0e6 [2019-11-25 08:47:18,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:18,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:18,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:18,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:18,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:18,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414509e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:18, skipping insertion in model container [2019-11-25 08:47:18,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:18" (1/1) ... [2019-11-25 08:47:18,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:18,946 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:19,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:19,191 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:19,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:19,233 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:19,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19 WrapperNode [2019-11-25 08:47:19,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:19,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:19,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:19,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:19,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:19,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:19,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:19,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:19,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:19,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:19,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:19,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:19,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/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 [2019-11-25 08:47:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:47:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:47:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:47:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:47:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:47:19,658 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:19,658 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:47:19,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:19 BoogieIcfgContainer [2019-11-25 08:47:19,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:19,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:47:19,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:47:19,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:47:19,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:47:18" (1/3) ... [2019-11-25 08:47:19,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75657816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:19, skipping insertion in model container [2019-11-25 08:47:19,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19" (2/3) ... [2019-11-25 08:47:19,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75657816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:19, skipping insertion in model container [2019-11-25 08:47:19,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:19" (3/3) ... [2019-11-25 08:47:19,668 INFO L109 eAbstractionObserver]: Analyzing ICFG modpf.c [2019-11-25 08:47:19,677 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:47:19,690 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:47:19,698 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:47:19,717 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:47:19,718 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:47:19,718 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:47:19,718 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:19,718 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:19,718 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:47:19,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:19,719 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:47:19,732 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-25 08:47:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:47:19,738 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:19,739 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:19,739 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:19,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:19,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1486647931, now seen corresponding path program 1 times [2019-11-25 08:47:19,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:19,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357060191] [2019-11-25 08:47:19,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:19,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357060191] [2019-11-25 08:47:19,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:19,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:47:19,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601798281] [2019-11-25 08:47:19,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:47:19,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:19,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:47:19,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:47:19,881 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-11-25 08:47:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:19,895 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2019-11-25 08:47:19,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:47:19,896 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:47:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:19,904 INFO L225 Difference]: With dead ends: 33 [2019-11-25 08:47:19,904 INFO L226 Difference]: Without dead ends: 15 [2019-11-25 08:47:19,907 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 [2019-11-25 08:47:19,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-25 08:47:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-25 08:47:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-25 08:47:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-25 08:47:19,936 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-11-25 08:47:19,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:19,937 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-25 08:47:19,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:47:19,937 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-25 08:47:19,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:47:19,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:19,938 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:19,938 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:19,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:19,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1772723449, now seen corresponding path program 1 times [2019-11-25 08:47:19,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:19,939 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802873414] [2019-11-25 08:47:19,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:19,956 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:47:19,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134538593] [2019-11-25 08:47:19,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/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 [2019-11-25 08:47:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:20,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:47:20,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:20,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802873414] [2019-11-25 08:47:20,056 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:47:20,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134538593] [2019-11-25 08:47:20,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:20,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:20,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536705204] [2019-11-25 08:47:20,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:47:20,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:20,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:20,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:20,059 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-25 08:47:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:20,126 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-11-25 08:47:20,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:20,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-25 08:47:20,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:20,128 INFO L225 Difference]: With dead ends: 27 [2019-11-25 08:47:20,128 INFO L226 Difference]: Without dead ends: 17 [2019-11-25 08:47:20,129 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 [2019-11-25 08:47:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-25 08:47:20,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-25 08:47:20,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:47:20,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-25 08:47:20,132 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2019-11-25 08:47:20,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:20,133 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-25 08:47:20,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:47:20,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-25 08:47:20,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:47:20,133 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:20,134 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:20,340 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:47:20,340 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:20,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:20,340 INFO L82 PathProgramCache]: Analyzing trace with hash 827904471, now seen corresponding path program 1 times [2019-11-25 08:47:20,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:20,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728860609] [2019-11-25 08:47:20,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:20,357 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:47:20,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550365308] [2019-11-25 08:47:20,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/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 [2019-11-25 08:47:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:20,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:47:20,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:47:20,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728860609] [2019-11-25 08:47:20,437 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:47:20,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550365308] [2019-11-25 08:47:20,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:20,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:47:20,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485236556] [2019-11-25 08:47:20,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:47:20,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:20,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:47:20,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:47:20,438 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-11-25 08:47:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:20,487 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-11-25 08:47:20,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:47:20,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-25 08:47:20,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:20,489 INFO L225 Difference]: With dead ends: 32 [2019-11-25 08:47:20,489 INFO L226 Difference]: Without dead ends: 25 [2019-11-25 08:47:20,489 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 [2019-11-25 08:47:20,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-25 08:47:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2019-11-25 08:47:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-25 08:47:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-25 08:47:20,493 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-11-25 08:47:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:20,494 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-25 08:47:20,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:47:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-25 08:47:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:47:20,495 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:20,495 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:20,698 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:47:20,698 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:20,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1602337035, now seen corresponding path program 1 times [2019-11-25 08:47:20,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:20,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710241236] [2019-11-25 08:47:20,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:20,731 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:47:20,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406017933] [2019-11-25 08:47:20,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/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 [2019-11-25 08:47:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:20,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:20,798 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:47:21,002 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:47:21,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:47:21 BoogieIcfgContainer [2019-11-25 08:47:21,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:47:21,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:21,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:21,027 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:21,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:19" (3/4) ... [2019-11-25 08:47:21,029 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:47:21,074 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3f2f779f-ab9f-43bf-84e9-63fe1d86d0c9/bin/uautomizer/witness.graphml [2019-11-25 08:47:21,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:21,076 INFO L168 Benchmark]: Toolchain (without parser) took 2160.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 951.5 MB in the beginning and 1.0 GB in the end (delta: -50.0 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:21,076 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:21,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:21,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:21,078 INFO L168 Benchmark]: Boogie Preprocessor took 53.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:21,078 INFO L168 Benchmark]: RCFGBuilder took 328.30 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:21,079 INFO L168 Benchmark]: TraceAbstraction took 1364.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:21,079 INFO L168 Benchmark]: Witness Printer took 47.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:21,087 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 328.30 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1364.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. * Witness Printer took 47.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 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