./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 13:06:47,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 13:06:47,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 13:06:47,787 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 13:06:47,787 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 13:06:47,787 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 13:06:47,788 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 13:06:47,789 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 13:06:47,790 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 13:06:47,790 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 13:06:47,791 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 13:06:47,791 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 13:06:47,792 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 13:06:47,792 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 13:06:47,793 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 13:06:47,793 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 13:06:47,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 13:06:47,794 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 13:06:47,796 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 13:06:47,796 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 13:06:47,797 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 13:06:47,798 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 13:06:47,799 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 13:06:47,799 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 13:06:47,799 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 13:06:47,800 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 13:06:47,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 13:06:47,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 13:06:47,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 13:06:47,801 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 13:06:47,802 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 13:06:47,802 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 13:06:47,802 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 13:06:47,802 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 13:06:47,803 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 13:06:47,803 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 13:06:47,803 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-01 13:06:47,811 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 13:06:47,811 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 13:06:47,811 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 13:06:47,811 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 13:06:47,812 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 13:06:47,812 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 13:06:47,812 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 13:06:47,812 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 13:06:47,812 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 13:06:47,812 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 13:06:47,812 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 13:06:47,812 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 13:06:47,812 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 13:06:47,813 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 13:06:47,813 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 13:06:47,813 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 13:06:47,813 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 13:06:47,813 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 13:06:47,813 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 13:06:47,813 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 13:06:47,813 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 13:06:47,814 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 13:06:47,814 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 13:06:47,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 13:06:47,814 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 13:06:47,814 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 13:06:47,814 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 13:06:47,814 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 13:06:47,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-12-01 13:06:47,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 13:06:47,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 13:06:47,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 13:06:47,845 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 13:06:47,845 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 13:06:47,845 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-01 13:06:47,888 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/018e1ecb7/96cd28867b7f47eea1f4cceaa74b34b4/FLAG5309e534a [2018-12-01 13:06:48,215 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 13:06:48,215 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-01 13:06:48,221 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/018e1ecb7/96cd28867b7f47eea1f4cceaa74b34b4/FLAG5309e534a [2018-12-01 13:06:48,229 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/018e1ecb7/96cd28867b7f47eea1f4cceaa74b34b4 [2018-12-01 13:06:48,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 13:06:48,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-01 13:06:48,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 13:06:48,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 13:06:48,234 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 13:06:48,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770470f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48, skipping insertion in model container [2018-12-01 13:06:48,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 13:06:48,266 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 13:06:48,395 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:06:48,399 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 13:06:48,453 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:06:48,474 INFO L195 MainTranslator]: Completed translation [2018-12-01 13:06:48,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48 WrapperNode [2018-12-01 13:06:48,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 13:06:48,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 13:06:48,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 13:06:48,475 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 13:06:48,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... [2018-12-01 13:06:48,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 13:06:48,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 13:06:48,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 13:06:48,503 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 13:06:48,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/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 [2018-12-01 13:06:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 13:06:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 13:06:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 13:06:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-01 13:06:48,535 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-01 13:06:48,536 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-01 13:06:48,537 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-01 13:06:48,538 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-01 13:06:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-01 13:06:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-01 13:06:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-01 13:06:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-01 13:06:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-01 13:06:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 13:06:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 13:06:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 13:06:48,715 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 13:06:48,715 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-01 13:06:48,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:06:48 BoogieIcfgContainer [2018-12-01 13:06:48,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 13:06:48,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 13:06:48,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 13:06:48,718 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 13:06:48,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:06:48" (1/3) ... [2018-12-01 13:06:48,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7155e6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:06:48, skipping insertion in model container [2018-12-01 13:06:48,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:48" (2/3) ... [2018-12-01 13:06:48,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7155e6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:06:48, skipping insertion in model container [2018-12-01 13:06:48,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:06:48" (3/3) ... [2018-12-01 13:06:48,720 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-01 13:06:48,727 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 13:06:48,731 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-01 13:06:48,742 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-01 13:06:48,758 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 13:06:48,758 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 13:06:48,758 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 13:06:48,758 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 13:06:48,758 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 13:06:48,758 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 13:06:48,758 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 13:06:48,759 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 13:06:48,759 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 13:06:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-01 13:06:48,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 13:06:48,775 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:06:48,775 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:06:48,777 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 13:06:48,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:06:48,781 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-12-01 13:06:48,782 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:06:48,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:06:48,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:06:48,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:06:48,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:06:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:06:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:06:48,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:06:48,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 13:06:48,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 13:06:48,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 13:06:48,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:48,891 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-01 13:06:48,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:06:48,920 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-01 13:06:48,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 13:06:48,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-01 13:06:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:06:48,926 INFO L225 Difference]: With dead ends: 18 [2018-12-01 13:06:48,926 INFO L226 Difference]: Without dead ends: 15 [2018-12-01 13:06:48,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:48,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-01 13:06:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-01 13:06:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-01 13:06:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-01 13:06:48,946 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-01 13:06:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:06:48,946 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-01 13:06:48,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 13:06:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-01 13:06:48,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 13:06:48,947 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:06:48,947 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:06:48,947 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 13:06:48,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:06:48,947 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-12-01 13:06:48,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:06:48,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:06:48,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:06:48,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:06:48,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:06:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:06:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:06:48,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:06:48,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 13:06:48,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 13:06:48,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 13:06:48,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:48,981 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-01 13:06:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:06:48,989 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-01 13:06:48,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 13:06:48,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-01 13:06:48,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:06:48,990 INFO L225 Difference]: With dead ends: 12 [2018-12-01 13:06:48,990 INFO L226 Difference]: Without dead ends: 12 [2018-12-01 13:06:48,991 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:48,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-01 13:06:48,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-01 13:06:48,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-01 13:06:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-01 13:06:48,993 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-01 13:06:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:06:48,993 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-01 13:06:48,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 13:06:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-01 13:06:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 13:06:48,993 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:06:48,993 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:06:48,993 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-01 13:06:48,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:06:48,994 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-12-01 13:06:48,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 13:06:48,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 13:06:48,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:06:48,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:06:48,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 13:06:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 13:06:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 13:06:49,040 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 13:06:49,049 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-01 13:06:49,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:06:49 BoogieIcfgContainer [2018-12-01 13:06:49,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 13:06:49,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 13:06:49,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 13:06:49,056 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 13:06:49,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:06:48" (3/4) ... [2018-12-01 13:06:49,059 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 13:06:49,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 13:06:49,060 INFO L168 Benchmark]: Toolchain (without parser) took 828.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -74.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:49,061 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:06:49,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:49,061 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:49,062 INFO L168 Benchmark]: RCFGBuilder took 212.85 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:49,062 INFO L168 Benchmark]: TraceAbstraction took 339.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:49,062 INFO L168 Benchmark]: Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:06:49,064 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 212.85 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 339.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={39:0}, malloc(37U)={40:0}] [L630] data.str.p2 = &data VAL [data={39:0}, malloc(37U)={40:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={39:0}, malloc(37U)={40:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={40:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-01 13:06:50,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 13:06:50,339 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 13:06:50,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 13:06:50,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 13:06:50,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 13:06:50,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 13:06:50,349 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 13:06:50,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 13:06:50,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 13:06:50,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 13:06:50,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 13:06:50,352 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 13:06:50,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 13:06:50,354 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 13:06:50,354 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 13:06:50,355 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 13:06:50,356 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 13:06:50,358 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 13:06:50,359 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 13:06:50,360 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 13:06:50,360 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 13:06:50,362 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 13:06:50,362 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 13:06:50,363 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 13:06:50,363 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 13:06:50,364 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 13:06:50,365 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 13:06:50,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 13:06:50,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 13:06:50,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 13:06:50,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 13:06:50,367 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 13:06:50,367 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 13:06:50,367 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 13:06:50,368 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 13:06:50,368 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-12-01 13:06:50,378 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 13:06:50,378 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 13:06:50,379 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 13:06:50,379 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 13:06:50,379 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 13:06:50,380 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 13:06:50,380 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 13:06:50,380 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 13:06:50,380 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 13:06:50,380 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 13:06:50,380 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 13:06:50,380 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 13:06:50,380 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 13:06:50,381 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 13:06:50,381 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 13:06:50,382 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-01 13:06:50,382 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-12-01 13:06:50,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 13:06:50,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 13:06:50,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 13:06:50,419 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 13:06:50,419 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 13:06:50,420 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-01 13:06:50,460 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/3c68806bc/0a799559226d4aafa9a50ed8c48e2ba8/FLAG0f5d1e040 [2018-12-01 13:06:50,783 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 13:06:50,784 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-12-01 13:06:50,789 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/3c68806bc/0a799559226d4aafa9a50ed8c48e2ba8/FLAG0f5d1e040 [2018-12-01 13:06:50,799 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/data/3c68806bc/0a799559226d4aafa9a50ed8c48e2ba8 [2018-12-01 13:06:50,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 13:06:50,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-01 13:06:50,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 13:06:50,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 13:06:50,805 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 13:06:50,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:06:50" (1/1) ... [2018-12-01 13:06:50,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e3c578c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:50, skipping insertion in model container [2018-12-01 13:06:50,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:06:50" (1/1) ... [2018-12-01 13:06:50,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 13:06:50,833 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 13:06:50,972 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:06:50,977 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 13:06:51,003 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:06:51,029 INFO L195 MainTranslator]: Completed translation [2018-12-01 13:06:51,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51 WrapperNode [2018-12-01 13:06:51,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 13:06:51,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 13:06:51,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 13:06:51,030 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 13:06:51,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... [2018-12-01 13:06:51,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... [2018-12-01 13:06:51,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... [2018-12-01 13:06:51,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... [2018-12-01 13:06:51,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... [2018-12-01 13:06:51,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... [2018-12-01 13:06:51,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... [2018-12-01 13:06:51,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 13:06:51,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 13:06:51,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 13:06:51,101 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 13:06:51,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/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 [2018-12-01 13:06:51,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 13:06:51,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 13:06:51,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-01 13:06:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-01 13:06:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-01 13:06:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-01 13:06:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-01 13:06:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-01 13:06:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-01 13:06:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-01 13:06:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-01 13:06:51,138 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-01 13:06:51,139 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-01 13:06:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-01 13:06:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-01 13:06:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-01 13:06:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-01 13:06:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-01 13:06:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-01 13:06:51,140 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-01 13:06:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-01 13:06:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-01 13:06:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-01 13:06:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-01 13:06:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-01 13:06:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 13:06:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 13:06:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 13:06:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-12-01 13:06:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 13:06:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 13:06:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 13:06:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-12-01 13:06:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 13:06:51,348 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 13:06:51,348 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-01 13:06:51,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:06:51 BoogieIcfgContainer [2018-12-01 13:06:51,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 13:06:51,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 13:06:51,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 13:06:51,351 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 13:06:51,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:06:50" (1/3) ... [2018-12-01 13:06:51,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24949560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:06:51, skipping insertion in model container [2018-12-01 13:06:51,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:06:51" (2/3) ... [2018-12-01 13:06:51,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24949560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:06:51, skipping insertion in model container [2018-12-01 13:06:51,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:06:51" (3/3) ... [2018-12-01 13:06:51,353 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-12-01 13:06:51,358 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 13:06:51,362 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-12-01 13:06:51,371 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-12-01 13:06:51,384 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 13:06:51,385 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 13:06:51,385 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 13:06:51,385 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 13:06:51,385 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 13:06:51,385 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 13:06:51,385 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 13:06:51,385 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 13:06:51,385 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 13:06:51,392 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-01 13:06:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 13:06:51,399 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:06:51,399 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:06:51,400 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-01 13:06:51,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:06:51,403 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-12-01 13:06:51,406 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 13:06:51,406 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-01 13:06:51,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:06:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:06:51,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 13:06:51,579 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 13:06:51,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-12-01 13:06:51,587 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-12-01 13:06:51,587 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 13:06:51,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 13:06:51,598 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-01 13:06:51,598 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2018-12-01 13:06:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:06:51,609 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 13:06:51,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:06:51,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 13:06:51,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 13:06:51,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 13:06:51,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:51,623 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-01 13:06:51,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:06:51,667 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-01 13:06:51,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 13:06:51,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-01 13:06:51,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:06:51,673 INFO L225 Difference]: With dead ends: 18 [2018-12-01 13:06:51,673 INFO L226 Difference]: Without dead ends: 15 [2018-12-01 13:06:51,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-01 13:06:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-01 13:06:51,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-01 13:06:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-01 13:06:51,693 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-12-01 13:06:51,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:06:51,693 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-01 13:06:51,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 13:06:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-01 13:06:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 13:06:51,694 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:06:51,694 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:06:51,694 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-01 13:06:51,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:06:51,694 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-12-01 13:06:51,694 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 13:06:51,695 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-01 13:06:51,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:06:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:06:51,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 13:06:51,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-01 13:06:51,752 INFO L701 Elim1Store]: detected not equals via solver [2018-12-01 13:06:51,753 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-01 13:06:51,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 13:06:51,761 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 13:06:51,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-01 13:06:51,772 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-01 13:06:51,779 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-01 13:06:51,780 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-12-01 13:06:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:06:51,789 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 13:06:51,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 13:06:51,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 13:06:51,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 13:06:51,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 13:06:51,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:51,792 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-12-01 13:06:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 13:06:51,818 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-01 13:06:51,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 13:06:51,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-01 13:06:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 13:06:51,819 INFO L225 Difference]: With dead ends: 12 [2018-12-01 13:06:51,819 INFO L226 Difference]: Without dead ends: 12 [2018-12-01 13:06:51,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 13:06:51,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-01 13:06:51,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-01 13:06:51,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-01 13:06:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-01 13:06:51,821 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-01 13:06:51,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 13:06:51,821 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-01 13:06:51,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 13:06:51,821 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-01 13:06:51,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 13:06:51,821 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 13:06:51,821 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 13:06:51,821 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-12-01 13:06:51,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:06:51,822 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-12-01 13:06:51,822 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-01 13:06:51,822 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28dcfb66-ac3f-4cf5-abcd-4c00f84da8a4/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-01 13:06:51,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 13:06:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 13:06:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 13:06:51,936 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 13:06:51,947 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-01 13:06:51,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:06:51 BoogieIcfgContainer [2018-12-01 13:06:51,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 13:06:51,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 13:06:51,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 13:06:51,956 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 13:06:51,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:06:51" (3/4) ... [2018-12-01 13:06:51,960 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 13:06:51,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 13:06:51,960 INFO L168 Benchmark]: Toolchain (without parser) took 1158.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 942.0 MB in the beginning and 948.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:51,961 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:06:51,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.96 ms. Allocated memory is still 1.0 GB. Free memory was 936.7 MB in the beginning and 915.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:51,962 INFO L168 Benchmark]: Boogie Preprocessor took 70.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 915.2 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:51,963 INFO L168 Benchmark]: RCFGBuilder took 248.00 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: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:51,963 INFO L168 Benchmark]: TraceAbstraction took 607.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 948.1 MB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. [2018-12-01 13:06:51,964 INFO L168 Benchmark]: Witness Printer took 3.56 ms. Allocated memory is still 1.1 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:06:51,966 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.96 ms. Allocated memory is still 1.0 GB. Free memory was 936.7 MB in the beginning and 915.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 915.2 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 248.00 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: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 607.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 948.1 MB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.56 ms. Allocated memory is still 1.1 GB. Free memory is still 948.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L630] data.str.p2 = &data VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 2 QuantifiedInterpolants, 288 SizeOfPredicates, 2 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...