./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-3.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3898362f0344bf22d4c5daf1ef882d33563fe291 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:05,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:05,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:05,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:05,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:05,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:05,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:05,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:05,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:05,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:05,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:05,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:05,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:05,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:05,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:05,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:05,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:05,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:05,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:05,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:05,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:05,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:05,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:05,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:05,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:05,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:05,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:05,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:05,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:05,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:05,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:05,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:05,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:05,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:05,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:05,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:05,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:05,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:05,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:05,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:05,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:05,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:01:05,136 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:05,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:05,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:05,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:05,138 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:05,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:05,138 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:05,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:05,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:05,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:05,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:05,139 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:01:05,139 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:01:05,139 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:01:05,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:05,139 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:05,140 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:05,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:05,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:05,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:05,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:05,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:05,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:05,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:05,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:05,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:05,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3898362f0344bf22d4c5daf1ef882d33563fe291 [2019-10-22 09:01:05,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:05,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:05,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:05,177 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:05,178 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:05,178 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/../../sv-benchmarks/c/memsafety/test-0158-3.i [2019-10-22 09:01:05,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/data/2d6ff2656/18f378d09f224b76830411b55bedacb3/FLAG71683ba46 [2019-10-22 09:01:05,692 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:05,693 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/sv-benchmarks/c/memsafety/test-0158-3.i [2019-10-22 09:01:05,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/data/2d6ff2656/18f378d09f224b76830411b55bedacb3/FLAG71683ba46 [2019-10-22 09:01:06,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/data/2d6ff2656/18f378d09f224b76830411b55bedacb3 [2019-10-22 09:01:06,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:06,203 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:01:06,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:06,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:06,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:06,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06, skipping insertion in model container [2019-10-22 09:01:06,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,217 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:06,258 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:06,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:06,691 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:06,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:06,789 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:06,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06 WrapperNode [2019-10-22 09:01:06,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:06,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:06,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:06,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:06,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:06,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:06,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:06,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:06,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:01:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:01:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:01:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:01:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:01:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:01:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:01:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:01:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:01:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:01:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:01:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:01:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:01:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:01:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:01:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:01:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:01:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:01:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:01:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:01:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:01:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:01:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:01:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:01:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:01:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:01:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:01:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:01:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:01:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:01:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:01:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:01:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:01:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-10-22 09:01:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-10-22 09:01:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2019-10-22 09:01:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2019-10-22 09:01:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2019-10-22 09:01:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2019-10-22 09:01:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure index [2019-10-22 09:01:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2019-10-22 09:01:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:01:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:01:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:01:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:01:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:07,349 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:07,350 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-22 09:01:07,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:07 BoogieIcfgContainer [2019-10-22 09:01:07,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:07,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:07,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:07,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:07,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:06" (1/3) ... [2019-10-22 09:01:07,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349d17bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:07, skipping insertion in model container [2019-10-22 09:01:07,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (2/3) ... [2019-10-22 09:01:07,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349d17bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:07, skipping insertion in model container [2019-10-22 09:01:07,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:07" (3/3) ... [2019-10-22 09:01:07,362 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158-3.i [2019-10-22 09:01:07,373 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:07,382 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2019-10-22 09:01:07,393 INFO L249 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2019-10-22 09:01:07,419 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:07,419 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:01:07,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:07,419 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:07,420 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:07,420 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:07,421 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:07,421 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:07,440 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-10-22 09:01:07,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:01:07,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:07,458 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:07,461 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:07,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:07,470 INFO L82 PathProgramCache]: Analyzing trace with hash -202007183, now seen corresponding path program 1 times [2019-10-22 09:01:07,478 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:07,481 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965904490] [2019-10-22 09:01:07,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:07,481 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:07,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:07,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965904490] [2019-10-22 09:01:07,715 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:07,716 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:07,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122928495] [2019-10-22 09:01:07,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:07,721 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:07,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:07,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:07,736 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-10-22 09:01:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:07,856 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2019-10-22 09:01:07,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:07,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 09:01:07,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:07,867 INFO L225 Difference]: With dead ends: 34 [2019-10-22 09:01:07,867 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 09:01:07,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:07,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 09:01:07,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 09:01:07,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 09:01:07,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2019-10-22 09:01:07,902 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 7 [2019-10-22 09:01:07,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:07,903 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2019-10-22 09:01:07,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:07,903 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2019-10-22 09:01:07,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:01:07,904 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:07,904 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:07,904 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:07,905 INFO L82 PathProgramCache]: Analyzing trace with hash -202007182, now seen corresponding path program 1 times [2019-10-22 09:01:07,905 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:07,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290166408] [2019-10-22 09:01:07,905 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:07,905 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:07,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:07,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290166408] [2019-10-22 09:01:07,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:07,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:07,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575511134] [2019-10-22 09:01:07,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:07,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:07,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:07,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:07,991 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 4 states. [2019-10-22 09:01:08,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:08,056 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2019-10-22 09:01:08,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:08,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 09:01:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:08,058 INFO L225 Difference]: With dead ends: 26 [2019-10-22 09:01:08,058 INFO L226 Difference]: Without dead ends: 26 [2019-10-22 09:01:08,059 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:08,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-22 09:01:08,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-22 09:01:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:01:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2019-10-22 09:01:08,062 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 7 [2019-10-22 09:01:08,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:08,063 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2019-10-22 09:01:08,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:08,063 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2019-10-22 09:01:08,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 09:01:08,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:08,064 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:08,064 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,065 INFO L82 PathProgramCache]: Analyzing trace with hash -727987657, now seen corresponding path program 1 times [2019-10-22 09:01:08,065 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678027358] [2019-10-22 09:01:08,065 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,066 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:08,188 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678027358] [2019-10-22 09:01:08,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:08,189 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:01:08,189 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534776295] [2019-10-22 09:01:08,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:01:08,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:08,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:08,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:08,190 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 6 states. [2019-10-22 09:01:08,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:08,290 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-10-22 09:01:08,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:01:08,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-10-22 09:01:08,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:08,291 INFO L225 Difference]: With dead ends: 25 [2019-10-22 09:01:08,292 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:01:08,292 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:01:08,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:01:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 09:01:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:01:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2019-10-22 09:01:08,295 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 13 [2019-10-22 09:01:08,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:08,296 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2019-10-22 09:01:08,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:01:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2019-10-22 09:01:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:01:08,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:08,299 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:08,300 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1092780829, now seen corresponding path program 1 times [2019-10-22 09:01:08,301 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138241746] [2019-10-22 09:01:08,301 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,301 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:08,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138241746] [2019-10-22 09:01:08,431 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:08,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:01:08,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315040230] [2019-10-22 09:01:08,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:01:08,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:08,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:08,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:08,433 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 6 states. [2019-10-22 09:01:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:08,525 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-10-22 09:01:08,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:01:08,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-22 09:01:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:08,526 INFO L225 Difference]: With dead ends: 24 [2019-10-22 09:01:08,527 INFO L226 Difference]: Without dead ends: 24 [2019-10-22 09:01:08,527 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:01:08,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-22 09:01:08,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-22 09:01:08,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-22 09:01:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2019-10-22 09:01:08,530 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 14 [2019-10-22 09:01:08,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:08,531 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2019-10-22 09:01:08,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:01:08,531 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2019-10-22 09:01:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 09:01:08,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:08,532 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:08,532 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:08,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,533 INFO L82 PathProgramCache]: Analyzing trace with hash 483532729, now seen corresponding path program 1 times [2019-10-22 09:01:08,533 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842287693] [2019-10-22 09:01:08,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,534 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:08,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842287693] [2019-10-22 09:01:08,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:08,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:01:08,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758822301] [2019-10-22 09:01:08,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:01:08,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:08,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:08,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:08,623 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 6 states. [2019-10-22 09:01:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:08,723 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-10-22 09:01:08,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:01:08,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-10-22 09:01:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:08,725 INFO L225 Difference]: With dead ends: 23 [2019-10-22 09:01:08,725 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 09:01:08,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:01:08,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 09:01:08,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 09:01:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 09:01:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-10-22 09:01:08,734 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 15 [2019-10-22 09:01:08,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:08,734 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-10-22 09:01:08,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:01:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-10-22 09:01:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:01:08,735 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:08,735 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:08,736 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,736 INFO L82 PathProgramCache]: Analyzing trace with hash 2104612773, now seen corresponding path program 1 times [2019-10-22 09:01:08,736 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,736 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594948279] [2019-10-22 09:01:08,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:08,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594948279] [2019-10-22 09:01:08,835 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:08,835 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:01:08,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214412054] [2019-10-22 09:01:08,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:01:08,836 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:08,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:01:08,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:08,837 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 7 states. [2019-10-22 09:01:08,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:08,961 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-10-22 09:01:08,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:01:08,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-10-22 09:01:08,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:08,962 INFO L225 Difference]: With dead ends: 22 [2019-10-22 09:01:08,962 INFO L226 Difference]: Without dead ends: 22 [2019-10-22 09:01:08,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:01:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-22 09:01:08,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-22 09:01:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-22 09:01:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2019-10-22 09:01:08,965 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 16 [2019-10-22 09:01:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:08,966 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2019-10-22 09:01:08,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:01:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2019-10-22 09:01:08,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:01:08,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:08,967 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:08,967 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:08,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,967 INFO L82 PathProgramCache]: Analyzing trace with hash 818486587, now seen corresponding path program 1 times [2019-10-22 09:01:08,968 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,968 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777089642] [2019-10-22 09:01:08,975 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,975 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:09,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:09,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777089642] [2019-10-22 09:01:09,071 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:09,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:01:09,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849344722] [2019-10-22 09:01:09,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:01:09,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:09,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:01:09,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:09,073 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 7 states. [2019-10-22 09:01:09,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:09,173 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-10-22 09:01:09,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:01:09,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-10-22 09:01:09,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:09,174 INFO L225 Difference]: With dead ends: 21 [2019-10-22 09:01:09,174 INFO L226 Difference]: Without dead ends: 21 [2019-10-22 09:01:09,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:01:09,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-22 09:01:09,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-22 09:01:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-22 09:01:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-10-22 09:01:09,177 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 17 [2019-10-22 09:01:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:09,178 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-10-22 09:01:09,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:01:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-10-22 09:01:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:01:09,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:09,179 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:09,179 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION]=== [2019-10-22 09:01:09,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,179 INFO L82 PathProgramCache]: Analyzing trace with hash -396719513, now seen corresponding path program 1 times [2019-10-22 09:01:09,180 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475436875] [2019-10-22 09:01:09,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,235 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,235 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:09,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:09 BoogieIcfgContainer [2019-10-22 09:01:09,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:09,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:09,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:09,269 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:09,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:07" (3/4) ... [2019-10-22 09:01:09,272 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:01:09,323 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b072e4fa-ce3b-48da-887a-7f0cea5b7e59/bin/uautomizer/witness.graphml [2019-10-22 09:01:09,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:09,325 INFO L168 Benchmark]: Toolchain (without parser) took 3121.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 940.4 MB in the beginning and 902.7 MB in the end (delta: 37.7 MB). Peak memory consumption was 205.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,326 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:09,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 585.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -200.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,327 INFO L168 Benchmark]: Boogie Preprocessor took 47.72 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. [2019-10-22 09:01:09,327 INFO L168 Benchmark]: RCFGBuilder took 513.52 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,328 INFO L168 Benchmark]: TraceAbstraction took 1915.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.4 MB in the end (delta: 172.5 MB). Peak memory consumption was 172.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,328 INFO L168 Benchmark]: Witness Printer took 54.65 ms. Allocated memory is still 1.2 GB. Free memory was 904.4 MB in the beginning and 902.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,330 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 585.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -200.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.72 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 513.52 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1915.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.4 MB in the end (delta: 172.5 MB). Peak memory consumption was 172.5 MB. Max. memory is 11.5 GB. * Witness Printer took 54.65 ms. Allocated memory is still 1.2 GB. Free memory was 904.4 MB in the beginning and 902.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 644]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L631-L638] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L639] data.p0 = malloc(37U) VAL [data={-4:0}, malloc(37U)={-2:0}] [L640] data.str.p2 = &data VAL [data={-4:0}, malloc(37U)={-2:0}] [L641] EXPR data.p0 VAL [data={-4:0}, data.p0={-2:0}, malloc(37U)={-2:0}] [L641] void *ptr = data.p0; [L642] data.str.c[1] = sizeof data.str.p1 VAL [data={-4:0}, malloc(37U)={-2:0}, ptr={-2:0}] [L643] EXPR data.p0 VAL [data={-4:0}, data.p0={-2:0}, malloc(37U)={-2:0}, ptr={-2:0}] [L643] free(data.p0) VAL [data={-4:0}, data.p0={-2:0}, malloc(37U)={-2:0}, ptr={-2:0}] [L643] free(data.p0) VAL [data={-4:0}, data.p0={-2:0}, malloc(37U)={-2:0}, ptr={-2:0}] [L643] free(data.p0) [L644] free(ptr) VAL [data={-4:0}, malloc(37U)={-2:0}, ptr={-2:0}] [L644] free(ptr) VAL [data={-4:0}, malloc(37U)={-2:0}, ptr={-2:0}] [L644] free(ptr) VAL [data={-4:0}, malloc(37U)={-2:0}, ptr={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 54 locations, 17 error locations. Result: UNSAFE, OverallTime: 1.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 142 SDslu, 137 SDs, 0 SdLazy, 307 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 6277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...