./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/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 0.1.24-cad4683 [2019-11-15 19:50:20,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:50:20,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:50:20,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:50:20,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:50:20,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:50:20,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:50:20,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:50:20,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:50:20,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:50:20,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:50:20,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:50:20,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:50:20,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:50:20,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:50:20,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:50:20,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:50:20,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:50:20,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:50:20,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:50:20,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:50:20,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:50:20,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:50:20,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:50:20,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:50:20,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:50:20,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:50:20,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:50:20,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:50:20,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:50:20,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:50:20,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:50:20,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:50:20,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:50:20,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:50:20,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:50:20,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:50:20,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:50:20,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:50:20,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:50:20,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:50:20,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-15 19:50:20,921 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:50:20,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:50:20,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:50:20,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:50:20,922 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:50:20,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:50:20,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 19:50:20,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 19:50:20,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:50:20,923 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 19:50:20,924 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 19:50:20,924 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 19:50:20,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 19:50:20,924 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:50:20,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:50:20,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:50:20,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 19:50:20,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 19:50:20,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:50:20,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:50:20,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 19:50:20,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 19:50:20,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 19:50:20,926 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_c541de3f-de3b-4e09-a22a-c979029ea21c/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 [2019-11-15 19:50:20,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:50:20,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:50:20,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:50:20,986 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:50:20,986 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:50:20,987 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2019-11-15 19:50:21,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/data/7ae3f97d6/efdafaa236d7471285f3f52bc675ab7b/FLAG8263a14be [2019-11-15 19:50:21,483 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:50:21,483 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2019-11-15 19:50:21,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/data/7ae3f97d6/efdafaa236d7471285f3f52bc675ab7b/FLAG8263a14be [2019-11-15 19:50:21,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/data/7ae3f97d6/efdafaa236d7471285f3f52bc675ab7b [2019-11-15 19:50:21,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:50:21,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 19:50:21,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:50:21,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:50:21,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:50:21,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10695ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21, skipping insertion in model container [2019-11-15 19:50:21,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,524 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:50:21,539 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:50:21,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:50:21,806 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:50:21,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:50:21,837 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:50:21,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21 WrapperNode [2019-11-15 19:50:21,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:50:21,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:50:21,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:50:21,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:50:21,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... [2019-11-15 19:50:21,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:50:21,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:50:21,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:50:21,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:50:21,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/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 [2019-11-15 19:50:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 19:50:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:50:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 19:50:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 19:50:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 19:50:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 19:50:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 19:50:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 19:50:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 19:50:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 19:50:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 19:50:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 19:50:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:50:22,188 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:50:22,189 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-15 19:50:22,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:50:22 BoogieIcfgContainer [2019-11-15 19:50:22,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:50:22,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 19:50:22,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 19:50:22,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 19:50:22,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 07:50:21" (1/3) ... [2019-11-15 19:50:22,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e79dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:50:22, skipping insertion in model container [2019-11-15 19:50:22,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:50:21" (2/3) ... [2019-11-15 19:50:22,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e79dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:50:22, skipping insertion in model container [2019-11-15 19:50:22,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:50:22" (3/3) ... [2019-11-15 19:50:22,199 INFO L109 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-1.c [2019-11-15 19:50:22,208 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 19:50:22,230 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-11-15 19:50:22,240 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-11-15 19:50:22,259 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 19:50:22,259 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 19:50:22,260 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 19:50:22,260 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:50:22,260 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:50:22,260 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 19:50:22,260 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:50:22,260 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 19:50:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-15 19:50:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 19:50:22,284 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:50:22,285 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:50:22,287 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2019-11-15 19:50:22,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:50:22,292 INFO L82 PathProgramCache]: Analyzing trace with hash -522028180, now seen corresponding path program 1 times [2019-11-15 19:50:22,300 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:50:22,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677080451] [2019-11-15 19:50:22,301 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,301 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:50:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:50:22,497 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677080451] [2019-11-15 19:50:22,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:50:22,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 19:50:22,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056374289] [2019-11-15 19:50:22,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 19:50:22,504 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:50:22,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 19:50:22,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:50:22,520 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2019-11-15 19:50:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:50:22,644 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-11-15 19:50:22,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 19:50:22,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 19:50:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:50:22,658 INFO L225 Difference]: With dead ends: 28 [2019-11-15 19:50:22,658 INFO L226 Difference]: Without dead ends: 25 [2019-11-15 19:50:22,660 INFO L600 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 [2019-11-15 19:50:22,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-15 19:50:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-15 19:50:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-15 19:50:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-11-15 19:50:22,690 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2019-11-15 19:50:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:50:22,691 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-11-15 19:50:22,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 19:50:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-11-15 19:50:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 19:50:22,692 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:50:22,692 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:50:22,692 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2019-11-15 19:50:22,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:50:22,693 INFO L82 PathProgramCache]: Analyzing trace with hash -522028179, now seen corresponding path program 1 times [2019-11-15 19:50:22,693 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:50:22,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403039574] [2019-11-15 19:50:22,693 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,693 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:50:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:50:22,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403039574] [2019-11-15 19:50:22,779 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:50:22,779 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 19:50:22,779 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53344627] [2019-11-15 19:50:22,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 19:50:22,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:50:22,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 19:50:22,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:50:22,783 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 4 states. [2019-11-15 19:50:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:50:22,852 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-11-15 19:50:22,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 19:50:22,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 19:50:22,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:50:22,854 INFO L225 Difference]: With dead ends: 20 [2019-11-15 19:50:22,854 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 19:50:22,855 INFO L600 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 [2019-11-15 19:50:22,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 19:50:22,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 19:50:22,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 19:50:22,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-15 19:50:22,859 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2019-11-15 19:50:22,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:50:22,859 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-15 19:50:22,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 19:50:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-15 19:50:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 19:50:22,860 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:50:22,860 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:50:22,860 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2019-11-15 19:50:22,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:50:22,861 INFO L82 PathProgramCache]: Analyzing trace with hash -141661244, now seen corresponding path program 1 times [2019-11-15 19:50:22,861 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:50:22,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728333806] [2019-11-15 19:50:22,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:50:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:50:22,924 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728333806] [2019-11-15 19:50:22,924 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:50:22,924 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 19:50:22,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984817438] [2019-11-15 19:50:22,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 19:50:22,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:50:22,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 19:50:22,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:50:22,926 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-11-15 19:50:22,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:50:22,976 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-15 19:50:22,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 19:50:22,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-15 19:50:22,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:50:22,978 INFO L225 Difference]: With dead ends: 19 [2019-11-15 19:50:22,978 INFO L226 Difference]: Without dead ends: 19 [2019-11-15 19:50:22,978 INFO L600 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 [2019-11-15 19:50:22,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-15 19:50:22,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-15 19:50:22,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-15 19:50:22,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-15 19:50:22,981 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2019-11-15 19:50:22,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:50:22,982 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-15 19:50:22,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 19:50:22,982 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-15 19:50:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 19:50:22,982 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:50:22,983 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:50:22,983 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2019-11-15 19:50:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:50:22,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1302500167, now seen corresponding path program 1 times [2019-11-15 19:50:22,983 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:50:22,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144519900] [2019-11-15 19:50:22,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:50:22,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:50:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:50:23,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:50:23,106 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144519900] [2019-11-15 19:50:23,107 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:50:23,107 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 19:50:23,107 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059672316] [2019-11-15 19:50:23,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 19:50:23,108 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:50:23,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 19:50:23,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 19:50:23,108 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2019-11-15 19:50:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:50:23,159 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-15 19:50:23,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 19:50:23,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-15 19:50:23,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:50:23,160 INFO L225 Difference]: With dead ends: 18 [2019-11-15 19:50:23,160 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 19:50:23,161 INFO L600 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 [2019-11-15 19:50:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 19:50:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 19:50:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 19:50:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 19:50:23,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-15 19:50:23,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:50:23,162 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 19:50:23,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 19:50:23,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 19:50:23,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 19:50:23,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 07:50:23 BoogieIcfgContainer [2019-11-15 19:50:23,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 19:50:23,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:50:23,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:50:23,169 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:50:23,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:50:22" (3/4) ... [2019-11-15 19:50:23,173 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 19:50:23,180 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-15 19:50:23,181 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-15 19:50:23,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-15 19:50:23,189 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 19:50:23,190 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-15 19:50:23,239 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c541de3f-de3b-4e09-a22a-c979029ea21c/bin/uautomizer/witness.graphml [2019-11-15 19:50:23,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:50:23,241 INFO L168 Benchmark]: Toolchain (without parser) took 1733.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -115.4 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2019-11-15 19:50:23,242 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-11-15 19:50:23,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -203.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:50:23,243 INFO L168 Benchmark]: Boogie Preprocessor took 46.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:50:23,243 INFO L168 Benchmark]: RCFGBuilder took 305.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-15 19:50:23,244 INFO L168 Benchmark]: TraceAbstraction took 976.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-11-15 19:50:23,244 INFO L168 Benchmark]: Witness Printer took 71.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:50:23,248 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 330.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -203.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 305.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 976.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. * Witness Printer took 71.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference 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: 19]: free always succeeds For all program executions holds that free 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: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - 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: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 44 SDslu, 30 SDs, 0 SdLazy, 109 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.2s 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...