./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f2a8d3919c0496882213752e07135061fdbafdf6 ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:27:00,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:27:00,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:27:00,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:27:00,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:27:00,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:27:00,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:27:00,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:27:00,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:27:00,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:27:00,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:27:00,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:27:00,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:27:00,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:27:00,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:27:00,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:27:00,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:27:00,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:27:00,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:27:00,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:27:00,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:27:00,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:27:00,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:27:00,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:27:00,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:27:00,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:27:00,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:27:00,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:27:00,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:27:00,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:27:00,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:27:00,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:27:00,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:27:00,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:27:00,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:27:00,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:27:00,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:27:00,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:27:00,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:27:00,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:27:00,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:27:00,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-12-07 10:27:00,700 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:27:00,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:27:00,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:27:00,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:27:00,702 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:27:00,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:27:00,702 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:27:00,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:27:00,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:27:00,703 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 10:27:00,703 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 10:27:00,703 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 10:27:00,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:27:00,703 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:27:00,703 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:27:00,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:27:00,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:27:00,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:27:00,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:27:00,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:27:00,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:27:00,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:27:00,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:27:00,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:27:00,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:27:00,705 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_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2a8d3919c0496882213752e07135061fdbafdf6 [2019-12-07 10:27:00,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:27:00,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:27:00,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:27:00,818 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:27:00,818 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:27:00,819 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2019-12-07 10:27:00,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/data/666bb59f8/692df370631c4e33b6ba1033b6fca132/FLAG90818b7e7 [2019-12-07 10:27:01,175 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:27:01,176 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2019-12-07 10:27:01,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/data/666bb59f8/692df370631c4e33b6ba1033b6fca132/FLAG90818b7e7 [2019-12-07 10:27:01,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/data/666bb59f8/692df370631c4e33b6ba1033b6fca132 [2019-12-07 10:27:01,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:27:01,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 10:27:01,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:27:01,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:27:01,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:27:01,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3120301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01, skipping insertion in model container [2019-12-07 10:27:01,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:27:01,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:27:01,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:27:01,341 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:27:01,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:27:01,364 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:27:01,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01 WrapperNode [2019-12-07 10:27:01,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:27:01,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:27:01,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:27:01,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:27:01,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... [2019-12-07 10:27:01,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:27:01,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:27:01,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:27:01,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:27:01,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/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 [2019-12-07 10:27:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 10:27:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:27:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 10:27:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 10:27:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 10:27:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 10:27:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 10:27:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 10:27:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:27:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:27:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:27:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 10:27:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:27:01,564 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:27:01,564 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-12-07 10:27:01,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:27:01 BoogieIcfgContainer [2019-12-07 10:27:01,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:27:01,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:27:01,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:27:01,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:27:01,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:27:01" (1/3) ... [2019-12-07 10:27:01,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfd98c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:27:01, skipping insertion in model container [2019-12-07 10:27:01,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:27:01" (2/3) ... [2019-12-07 10:27:01,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfd98c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:27:01, skipping insertion in model container [2019-12-07 10:27:01,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:27:01" (3/3) ... [2019-12-07 10:27:01,569 INFO L109 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-1.c [2019-12-07 10:27:01,576 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:27:01,580 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-12-07 10:27:01,587 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-12-07 10:27:01,599 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:27:01,599 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 10:27:01,599 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:27:01,599 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:27:01,599 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:27:01,599 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:27:01,600 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:27:01,600 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:27:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-12-07 10:27:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:27:01,617 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:01,618 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:27:01,618 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 10:27:01,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:01,622 INFO L82 PathProgramCache]: Analyzing trace with hash -522028180, now seen corresponding path program 1 times [2019-12-07 10:27:01,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:27:01,628 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367231339] [2019-12-07 10:27:01,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:27:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:27:01,746 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367231339] [2019-12-07 10:27:01,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:01,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:27:01,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644428100] [2019-12-07 10:27:01,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:27:01,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:27:01,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:27:01,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:01,760 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2019-12-07 10:27:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:01,824 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-12-07 10:27:01,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:27:01,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 10:27:01,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:01,831 INFO L225 Difference]: With dead ends: 28 [2019-12-07 10:27:01,831 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 10:27:01,833 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 10:27:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 10:27:01,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 10:27:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-12-07 10:27:01,859 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2019-12-07 10:27:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:01,860 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-12-07 10:27:01,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:27:01,860 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-12-07 10:27:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:27:01,860 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:01,861 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:27:01,861 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 10:27:01,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:01,861 INFO L82 PathProgramCache]: Analyzing trace with hash -522028179, now seen corresponding path program 1 times [2019-12-07 10:27:01,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:27:01,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711452911] [2019-12-07 10:27:01,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:27:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:27:01,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711452911] [2019-12-07 10:27:01,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:01,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:27:01,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16618341] [2019-12-07 10:27:01,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:27:01,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:27:01,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:27:01,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:01,912 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 4 states. [2019-12-07 10:27:01,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:01,945 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-12-07 10:27:01,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:27:01,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 10:27:01,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:01,945 INFO L225 Difference]: With dead ends: 20 [2019-12-07 10:27:01,946 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 10:27:01,946 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:01,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 10:27:01,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 10:27:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 10:27:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-12-07 10:27:01,949 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2019-12-07 10:27:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:01,949 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-12-07 10:27:01,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:27:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-12-07 10:27:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 10:27:01,949 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:01,950 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:27:01,950 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 10:27:01,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:01,950 INFO L82 PathProgramCache]: Analyzing trace with hash -141661244, now seen corresponding path program 1 times [2019-12-07 10:27:01,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:27:01,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788814496] [2019-12-07 10:27:01,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:27:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:27:01,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788814496] [2019-12-07 10:27:01,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:01,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:27:01,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938461369] [2019-12-07 10:27:01,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:27:01,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:27:01,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:27:01,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:01,992 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-12-07 10:27:02,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:02,017 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-12-07 10:27:02,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:27:02,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 10:27:02,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:02,018 INFO L225 Difference]: With dead ends: 19 [2019-12-07 10:27:02,018 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 10:27:02,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:27:02,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 10:27:02,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 10:27:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 10:27:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-12-07 10:27:02,021 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2019-12-07 10:27:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:02,021 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-12-07 10:27:02,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:27:02,021 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-12-07 10:27:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 10:27:02,022 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:27:02,022 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:27:02,022 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 10:27:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:27:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1302500167, now seen corresponding path program 1 times [2019-12-07 10:27:02,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:27:02,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440042589] [2019-12-07 10:27:02,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:27:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:27:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:27:02,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440042589] [2019-12-07 10:27:02,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:27:02,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:27:02,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598535682] [2019-12-07 10:27:02,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:27:02,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:27:02,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:27:02,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:27:02,069 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2019-12-07 10:27:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:27:02,094 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-12-07 10:27:02,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:27:02,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 10:27:02,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:27:02,095 INFO L225 Difference]: With dead ends: 18 [2019-12-07 10:27:02,095 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 10:27:02,095 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:27:02,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 10:27:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 10:27:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 10:27:02,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 10:27:02,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-07 10:27:02,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:27:02,096 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:27:02,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:27:02,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:27:02,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 10:27:02,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:27:02 BoogieIcfgContainer [2019-12-07 10:27:02,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:27:02,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:27:02,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:27:02,101 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:27:02,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:27:01" (3/4) ... [2019-12-07 10:27:02,103 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 10:27:02,108 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-12-07 10:27:02,108 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-12-07 10:27:02,111 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 10:27:02,111 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 10:27:02,111 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 10:27:02,112 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 10:27:02,139 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e0d0a1bd-0208-4f71-8e46-1c831ffcc28b/bin/uautomizer/witness.graphml [2019-12-07 10:27:02,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:27:02,141 INFO L168 Benchmark]: Toolchain (without parser) took 949.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -61.0 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:02,141 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:27:02,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:02,142 INFO L168 Benchmark]: Boogie Preprocessor took 21.46 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. [2019-12-07 10:27:02,142 INFO L168 Benchmark]: RCFGBuilder took 178.24 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:02,143 INFO L168 Benchmark]: TraceAbstraction took 534.86 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:02,143 INFO L168 Benchmark]: Witness Printer took 39.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:27:02,144 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.46 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 178.24 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 534.86 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 12 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 44 SDslu, 30 SDs, 0 SdLazy, 109 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...