./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/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 32bit --witnessprinter.graph.data.programhash f2222db53b1ba3adad8f3ce16bd4a15f62841c2c ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:16:05,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:16:05,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:16:05,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:16:05,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:16:05,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:16:05,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:16:05,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:16:05,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:16:05,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:16:05,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:16:05,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:16:05,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:16:05,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:16:05,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:16:05,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:16:05,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:16:05,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:16:05,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:16:05,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:16:05,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:16:05,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:16:05,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:16:05,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:16:05,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:16:05,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:16:05,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:16:05,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:16:05,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:16:05,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:16:05,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:16:05,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:16:05,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:16:05,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:16:05,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:16:05,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:16:05,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:16:05,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:16:05,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:16:05,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:16:05,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:16:05,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 17:16:05,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:16:05,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:16:05,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:16:05,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:16:05,709 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:16:05,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:16:05,709 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:16:05,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:16:05,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:16:05,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:16:05,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:16:05,710 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 17:16:05,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 17:16:05,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 17:16:05,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:16:05,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:16:05,710 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:16:05,710 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:16:05,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:16:05,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:16:05,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:16:05,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:16:05,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:16:05,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:16:05,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:16:05,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:16:05,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:16:05,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:16:05,712 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_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2222db53b1ba3adad8f3ce16bd4a15f62841c2c [2019-12-07 17:16:05,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:16:05,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:16:05,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:16:05,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:16:05,821 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:16:05,822 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2019-12-07 17:16:05,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/data/96b5b2e2d/76a76e82418546489eef5e504976c4eb/FLAG4246d36f5 [2019-12-07 17:16:06,310 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:16:06,310 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2019-12-07 17:16:06,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/data/96b5b2e2d/76a76e82418546489eef5e504976c4eb/FLAG4246d36f5 [2019-12-07 17:16:06,328 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/data/96b5b2e2d/76a76e82418546489eef5e504976c4eb [2019-12-07 17:16:06,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:16:06,330 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 17:16:06,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:16:06,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:16:06,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:16:06,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea06886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06, skipping insertion in model container [2019-12-07 17:16:06,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:16:06,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:16:06,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:16:06,578 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:16:06,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:16:06,649 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:16:06,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06 WrapperNode [2019-12-07 17:16:06,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:16:06,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:16:06,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:16:06,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:16:06,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... [2019-12-07 17:16:06,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:16:06,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:16:06,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:16:06,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:16:06,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/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 17:16:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 17:16:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:16:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 17:16:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 17:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 17:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 17:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 17:16:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 17:16:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 17:16:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 17:16:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 17:16:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 17:16:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 17:16:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 17:16:06,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 17:16:06,725 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 17:16:06,726 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 17:16:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 17:16:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 17:16:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 17:16:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 17:16:06,731 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 17:16:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 17:16:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 17:16:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 17:16:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:16:06,987 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:16:06,987 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-12-07 17:16:06,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:16:06 BoogieIcfgContainer [2019-12-07 17:16:06,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:16:06,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:16:06,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:16:06,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:16:06,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:16:06" (1/3) ... [2019-12-07 17:16:06,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148844dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:16:06, skipping insertion in model container [2019-12-07 17:16:06,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:16:06" (2/3) ... [2019-12-07 17:16:06,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148844dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:16:06, skipping insertion in model container [2019-12-07 17:16:06,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:16:06" (3/3) ... [2019-12-07 17:16:06,992 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-3.i [2019-12-07 17:16:06,998 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:16:07,003 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2019-12-07 17:16:07,010 INFO L249 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2019-12-07 17:16:07,021 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:16:07,022 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 17:16:07,022 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:16:07,022 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:16:07,022 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:16:07,022 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:16:07,022 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:16:07,022 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:16:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-12-07 17:16:07,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:16:07,038 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:07,038 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:07,039 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:07,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:07,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1406256573, now seen corresponding path program 1 times [2019-12-07 17:16:07,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:07,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039812709] [2019-12-07 17:16:07,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,173 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 17:16:07,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039812709] [2019-12-07 17:16:07,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:07,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:16:07,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985958556] [2019-12-07 17:16:07,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:16:07,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:07,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:16:07,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:16:07,188 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2019-12-07 17:16:07,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:07,279 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-12-07 17:16:07,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:16:07,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 17:16:07,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:07,286 INFO L225 Difference]: With dead ends: 40 [2019-12-07 17:16:07,286 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 17:16:07,287 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 17:16:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 17:16:07,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 17:16:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 17:16:07,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2019-12-07 17:16:07,310 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 7 [2019-12-07 17:16:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:07,311 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2019-12-07 17:16:07,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:16:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-12-07 17:16:07,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:16:07,311 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:07,311 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:07,311 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:07,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:07,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1406256572, now seen corresponding path program 1 times [2019-12-07 17:16:07,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:07,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464584885] [2019-12-07 17:16:07,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,358 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 17:16:07,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464584885] [2019-12-07 17:16:07,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:07,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:16:07,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857368069] [2019-12-07 17:16:07,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:16:07,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:07,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:16:07,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:16:07,361 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2019-12-07 17:16:07,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:07,406 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-12-07 17:16:07,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:16:07,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 17:16:07,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:07,407 INFO L225 Difference]: With dead ends: 30 [2019-12-07 17:16:07,407 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 17:16:07,408 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 17:16:07,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 17:16:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 17:16:07,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 17:16:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-12-07 17:16:07,411 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2019-12-07 17:16:07,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:07,411 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-12-07 17:16:07,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:16:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-12-07 17:16:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 17:16:07,412 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:07,412 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:07,412 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:07,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1892987731, now seen corresponding path program 1 times [2019-12-07 17:16:07,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:07,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67934745] [2019-12-07 17:16:07,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,460 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 17:16:07,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67934745] [2019-12-07 17:16:07,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:07,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:16:07,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656768579] [2019-12-07 17:16:07,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:16:07,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:07,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:16:07,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:16:07,462 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 5 states. [2019-12-07 17:16:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:07,535 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2019-12-07 17:16:07,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:16:07,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-12-07 17:16:07,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:07,536 INFO L225 Difference]: With dead ends: 46 [2019-12-07 17:16:07,536 INFO L226 Difference]: Without dead ends: 46 [2019-12-07 17:16:07,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:16:07,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-07 17:16:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 32. [2019-12-07 17:16:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 17:16:07,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2019-12-07 17:16:07,540 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 15 [2019-12-07 17:16:07,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:07,540 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2019-12-07 17:16:07,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:16:07,540 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-12-07 17:16:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 17:16:07,541 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:07,541 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:07,541 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:07,541 INFO L82 PathProgramCache]: Analyzing trace with hash 2040751091, now seen corresponding path program 1 times [2019-12-07 17:16:07,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:07,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681382648] [2019-12-07 17:16:07,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,591 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 17:16:07,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681382648] [2019-12-07 17:16:07,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:07,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:16:07,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412095741] [2019-12-07 17:16:07,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:16:07,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:07,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:16:07,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:16:07,592 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2019-12-07 17:16:07,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:07,654 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-12-07 17:16:07,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:16:07,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 17:16:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:07,655 INFO L225 Difference]: With dead ends: 31 [2019-12-07 17:16:07,655 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 17:16:07,656 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:16:07,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 17:16:07,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 17:16:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 17:16:07,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-12-07 17:16:07,659 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 15 [2019-12-07 17:16:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:07,660 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-12-07 17:16:07,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:16:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-12-07 17:16:07,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 17:16:07,660 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:07,661 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:07,661 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:07,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:07,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1161225543, now seen corresponding path program 1 times [2019-12-07 17:16:07,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:07,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238170537] [2019-12-07 17:16:07,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,713 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 17:16:07,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238170537] [2019-12-07 17:16:07,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:07,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:16:07,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930448582] [2019-12-07 17:16:07,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:16:07,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:07,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:16:07,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:16:07,715 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 6 states. [2019-12-07 17:16:07,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:07,771 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-12-07 17:16:07,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:16:07,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-07 17:16:07,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:07,772 INFO L225 Difference]: With dead ends: 30 [2019-12-07 17:16:07,772 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 17:16:07,773 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:16:07,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 17:16:07,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 17:16:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 17:16:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-12-07 17:16:07,775 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 16 [2019-12-07 17:16:07,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:07,776 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-12-07 17:16:07,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:16:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-12-07 17:16:07,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:16:07,776 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:07,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:07,777 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:07,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:07,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1638253387, now seen corresponding path program 1 times [2019-12-07 17:16:07,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:07,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143470100] [2019-12-07 17:16:07,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,824 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 17:16:07,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143470100] [2019-12-07 17:16:07,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:07,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:16:07,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234428711] [2019-12-07 17:16:07,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:16:07,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:07,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:16:07,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:16:07,825 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2019-12-07 17:16:07,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:07,883 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-12-07 17:16:07,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:16:07,883 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-12-07 17:16:07,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:07,884 INFO L225 Difference]: With dead ends: 29 [2019-12-07 17:16:07,884 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 17:16:07,884 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:16:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 17:16:07,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 17:16:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 17:16:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-12-07 17:16:07,887 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2019-12-07 17:16:07,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:07,887 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-12-07 17:16:07,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:16:07,887 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-12-07 17:16:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 17:16:07,888 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:07,888 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:07,888 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:07,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:07,889 INFO L82 PathProgramCache]: Analyzing trace with hash 753752635, now seen corresponding path program 1 times [2019-12-07 17:16:07,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:07,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943956843] [2019-12-07 17:16:07,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:07,936 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 17:16:07,936 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943956843] [2019-12-07 17:16:07,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:07,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:16:07,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590914417] [2019-12-07 17:16:07,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:16:07,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:07,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:16:07,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:16:07,937 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2019-12-07 17:16:08,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:08,011 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-12-07 17:16:08,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:16:08,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-07 17:16:08,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:08,012 INFO L225 Difference]: With dead ends: 28 [2019-12-07 17:16:08,012 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 17:16:08,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-12-07 17:16:08,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 17:16:08,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 17:16:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 17:16:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-12-07 17:16:08,015 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 18 [2019-12-07 17:16:08,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:08,015 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-12-07 17:16:08,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:16:08,015 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-12-07 17:16:08,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 17:16:08,016 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:08,016 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:08,016 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:08,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:08,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1891495287, now seen corresponding path program 1 times [2019-12-07 17:16:08,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:08,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2331818] [2019-12-07 17:16:08,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:16:08,071 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 17:16:08,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2331818] [2019-12-07 17:16:08,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:16:08,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:16:08,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746621633] [2019-12-07 17:16:08,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:16:08,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:16:08,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:16:08,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:16:08,074 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 7 states. [2019-12-07 17:16:08,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:16:08,154 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-12-07 17:16:08,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:16:08,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-12-07 17:16:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:16:08,155 INFO L225 Difference]: With dead ends: 27 [2019-12-07 17:16:08,155 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 17:16:08,155 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-12-07 17:16:08,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 17:16:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 17:16:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 17:16:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-12-07 17:16:08,158 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2019-12-07 17:16:08,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:16:08,159 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-12-07 17:16:08,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:16:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-12-07 17:16:08,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 17:16:08,160 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:16:08,160 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:16:08,160 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 17:16:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:16:08,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1493188163, now seen corresponding path program 1 times [2019-12-07 17:16:08,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:16:08,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708664174] [2019-12-07 17:16:08,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:16:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:16:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:16:08,206 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:16:08,206 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:16:08,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:16:08 BoogieIcfgContainer [2019-12-07 17:16:08,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:16:08,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:16:08,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:16:08,231 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:16:08,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:16:06" (3/4) ... [2019-12-07 17:16:08,233 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 17:16:08,261 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3f6d5e49-dcfb-4d6a-a7fc-b56c77857ce5/bin/uautomizer/witness.graphml [2019-12-07 17:16:08,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:16:08,263 INFO L168 Benchmark]: Toolchain (without parser) took 1932.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:16:08,263 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:16:08,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:08,264 INFO L168 Benchmark]: Boogie Preprocessor took 34.72 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:08,264 INFO L168 Benchmark]: RCFGBuilder took 303.54 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: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:08,265 INFO L168 Benchmark]: TraceAbstraction took 1241.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -61.5 MB). Peak memory consumption was 201.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:08,265 INFO L168 Benchmark]: Witness Printer took 30.68 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:16:08,267 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.72 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 303.54 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: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1241.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -61.5 MB). Peak memory consumption was 201.7 MB. Max. memory is 11.5 GB. * Witness Printer took 30.68 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 534]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L515-L522] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L523] data.p0 = malloc(37U) VAL [data={2:0}, malloc(37U)={-1:0}] [L524] EXPR data.p0 VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}] [L524] void *ptr = data.p0; [L525] COND FALSE !(__VERIFIER_nondet_int()) [L528] data.str.p2 = 30 VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L530] EXPR data.str.p2 VAL [data={2:0}, data.str.p2=30, malloc(37U)={-1:0}, ptr={-1:0}] [L530] COND FALSE !(25 > data.str.p2) [L533] EXPR data.p0 VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L533] free(data.p0) VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L533] free(data.p0) VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L533] free(data.p0) [L534] free(ptr) VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L534] free(ptr) VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L534] free(ptr) VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 62 locations, 21 error locations. Result: UNSAFE, OverallTime: 1.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 158 SDtfs, 214 SDslu, 216 SDs, 0 SdLazy, 440 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 8 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 7024 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 incorrect! Received shutdown request...