./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:34:06,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:34:06,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:34:06,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:34:06,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:34:06,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:34:06,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:34:06,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:34:06,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:34:06,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:34:06,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:34:06,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:34:06,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:34:06,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:34:06,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:34:06,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:34:06,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:34:06,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:34:06,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:34:06,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:34:06,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:34:06,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:34:06,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:34:06,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:34:06,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:34:06,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:34:06,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:34:06,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:34:06,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:34:06,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:34:06,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:34:06,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:34:06,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:34:06,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:34:06,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:34:06,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:34:06,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:34:06,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:34:06,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:34:06,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:34:06,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:34:06,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 03:34:06,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:34:06,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:34:06,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:34:06,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:34:06,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:34:06,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:34:06,157 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:34:06,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:34:06,158 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:34:06,159 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:34:06,159 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:34:06,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:34:06,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:34:06,161 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:34:06,161 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:34:06,162 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:34:06,162 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:34:06,163 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:34:06,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 03:34:06,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 03:34:06,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:34:06,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:34:06,166 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:34:06,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:34:06,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:34:06,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:34:06,167 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 03:34:06,168 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 03:34:06,168 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 03:34:06,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:34:06,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:34:06,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:34:06,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:34:06,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:34:06,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:34:06,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:06,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:34:06,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:34:06,172 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:34:06,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:34:06,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:34:06,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:34:06,174 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2021-11-23 03:34:06,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:34:06,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:34:06,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:34:06,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:34:06,538 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:34:06,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-11-23 03:34:06,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/a105d3875/10746064120b4291a2f88a00bbe746fd/FLAGba86fa008 [2021-11-23 03:34:07,366 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:34:07,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-11-23 03:34:07,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/a105d3875/10746064120b4291a2f88a00bbe746fd/FLAGba86fa008 [2021-11-23 03:34:07,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/a105d3875/10746064120b4291a2f88a00bbe746fd [2021-11-23 03:34:07,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:34:07,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:34:07,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:07,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:34:07,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:34:07,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:07" (1/1) ... [2021-11-23 03:34:07,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c72964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:07, skipping insertion in model container [2021-11-23 03:34:07,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:07" (1/1) ... [2021-11-23 03:34:07,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:34:07,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:34:08,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:08,339 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-23 03:34:08,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@74c48ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:08, skipping insertion in model container [2021-11-23 03:34:08,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:08,341 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-23 03:34:08,345 INFO L158 Benchmark]: Toolchain (without parser) took 756.61ms. Allocated memory is still 90.2MB. Free memory was 54.6MB in the beginning and 62.2MB in the end (delta: -7.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:34:08,347 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory was 63.0MB in the beginning and 63.0MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:34:08,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 753.03ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 62.2MB in the end (delta: -7.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:34:08,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory was 63.0MB in the beginning and 63.0MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 753.03ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 62.2MB in the end (delta: -7.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:34:11,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:34:11,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:34:11,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:34:11,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:34:11,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:34:11,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:34:11,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:34:11,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:34:11,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:34:11,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:34:11,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:34:11,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:34:11,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:34:11,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:34:11,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:34:11,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:34:11,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:34:11,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:34:11,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:34:11,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:34:11,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:34:11,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:34:11,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:34:11,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:34:11,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:34:11,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:34:11,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:34:11,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:34:11,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:34:11,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:34:11,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:34:11,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:34:11,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:34:11,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:34:11,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:34:11,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:34:11,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:34:11,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:34:11,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:34:11,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:34:11,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-23 03:34:11,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:34:11,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:34:11,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:34:11,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:34:11,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:34:11,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:34:11,440 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:34:11,441 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:34:11,441 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:34:11,441 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:34:11,441 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:34:11,442 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:34:11,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 03:34:11,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 03:34:11,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:34:11,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:34:11,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:34:11,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:34:11,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:34:11,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:34:11,445 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 03:34:11,445 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 03:34:11,445 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 03:34:11,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:34:11,446 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:34:11,446 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 03:34:11,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 03:34:11,446 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:34:11,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:34:11,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:34:11,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 03:34:11,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:34:11,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:11,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:34:11,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:34:11,449 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 03:34:11,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 03:34:11,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:34:11,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:34:11,450 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2021-11-23 03:34:11,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:34:12,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:34:12,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:34:12,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:34:12,039 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:34:12,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-11-23 03:34:12,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/8f2d5454e/52e257bc13f34ceda626878d08269d6b/FLAG56f2e5a6e [2021-11-23 03:34:12,912 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:34:12,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2021-11-23 03:34:12,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/8f2d5454e/52e257bc13f34ceda626878d08269d6b/FLAG56f2e5a6e [2021-11-23 03:34:13,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/data/8f2d5454e/52e257bc13f34ceda626878d08269d6b [2021-11-23 03:34:13,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:34:13,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:34:13,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:13,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:34:13,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:34:13,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:13,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e91b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13, skipping insertion in model container [2021-11-23 03:34:13,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:13,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:34:13,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:34:13,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:13,661 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 03:34:13,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:34:13,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:13,770 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:34:13,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:34:13,983 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:34:13,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13 WrapperNode [2021-11-23 03:34:13,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:34:13,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:13,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:34:13,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:34:13,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,108 INFO L137 Inliner]: procedures = 170, calls = 76, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 54 [2021-11-23 03:34:14,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:34:14,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:34:14,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:34:14,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:34:14,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:34:14,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:34:14,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:34:14,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:34:14,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (1/1) ... [2021-11-23 03:34:14,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:34:14,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:34:14,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:34:14,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:34:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:34:14,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:34:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:34:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:34:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:34:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:34:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:34:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:34:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:34:14,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:34:14,515 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:34:14,517 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:34:14,721 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:34:14,730 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:34:14,730 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:34:14,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:14 BoogieIcfgContainer [2021-11-23 03:34:14,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:34:14,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:34:14,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:34:14,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:34:14,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:34:13" (1/3) ... [2021-11-23 03:34:14,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2f8af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:14, skipping insertion in model container [2021-11-23 03:34:14,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:13" (2/3) ... [2021-11-23 03:34:14,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2f8af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:34:14, skipping insertion in model container [2021-11-23 03:34:14,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:14" (3/3) ... [2021-11-23 03:34:14,744 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test7-1.i [2021-11-23 03:34:14,751 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:34:14,751 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 03:34:14,810 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:34:14,818 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:34:14,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 03:34:14,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:34:14,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:14,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:14,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:14,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:14,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1042630581, now seen corresponding path program 1 times [2021-11-23 03:34:14,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:14,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314615154] [2021-11-23 03:34:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:14,884 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:14,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:14,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:14,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 03:34:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:15,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:34:15,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:15,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:15,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:15,306 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:15,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314615154] [2021-11-23 03:34:15,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314615154] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:15,308 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:15,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 03:34:15,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809527585] [2021-11-23 03:34:15,311 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:15,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:34:15,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:15,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:34:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:34:15,354 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:15,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:15,415 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-11-23 03:34:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:34:15,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-23 03:34:15,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:15,428 INFO L225 Difference]: With dead ends: 31 [2021-11-23 03:34:15,428 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 03:34:15,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:34:15,435 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 23 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:15,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 92 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:34:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 03:34:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-23 03:34:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:15,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-11-23 03:34:15,478 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 12 [2021-11-23 03:34:15,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:15,479 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-23 03:34:15,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:15,479 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-11-23 03:34:15,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:34:15,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:15,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:15,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:15,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:15,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:15,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2038190425, now seen corresponding path program 1 times [2021-11-23 03:34:15,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:15,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655817273] [2021-11-23 03:34:15,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:15,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:15,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:15,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:15,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 03:34:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:15,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 03:34:15,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:15,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:16,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:16,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655817273] [2021-11-23 03:34:16,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655817273] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:16,167 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:16,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-23 03:34:16,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87452386] [2021-11-23 03:34:16,168 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:16,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:34:16,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:16,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:34:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:34:16,171 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:16,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:16,316 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2021-11-23 03:34:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:34:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2021-11-23 03:34:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:16,320 INFO L225 Difference]: With dead ends: 50 [2021-11-23 03:34:16,321 INFO L226 Difference]: Without dead ends: 50 [2021-11-23 03:34:16,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:34:16,323 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 60 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:16,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 103 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:34:16,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-23 03:34:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 32. [2021-11-23 03:34:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.32) internal successors, (33), 28 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:34:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-11-23 03:34:16,334 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 13 [2021-11-23 03:34:16,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:16,334 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-11-23 03:34:16,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-11-23 03:34:16,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 03:34:16,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:16,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:16,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:16,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:16,537 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:16,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:16,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1240606195, now seen corresponding path program 1 times [2021-11-23 03:34:16,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:16,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579174017] [2021-11-23 03:34:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:16,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:16,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:16,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:16,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 03:34:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:16,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:34:16,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:16,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 6 treesize of output 5 [2021-11-23 03:34:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:16,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:16,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:16,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579174017] [2021-11-23 03:34:16,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579174017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:16,904 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:16,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 03:34:16,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607708369] [2021-11-23 03:34:16,904 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:16,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:34:16,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:16,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:34:16,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:34:16,917 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:17,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:17,039 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2021-11-23 03:34:17,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:34:17,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-11-23 03:34:17,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:17,043 INFO L225 Difference]: With dead ends: 47 [2021-11-23 03:34:17,043 INFO L226 Difference]: Without dead ends: 47 [2021-11-23 03:34:17,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:34:17,045 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 12 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:17,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 94 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:34:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-23 03:34:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2021-11-23 03:34:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.3125) internal successors, (42), 35 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:34:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2021-11-23 03:34:17,065 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 14 [2021-11-23 03:34:17,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:17,065 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2021-11-23 03:34:17,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:17,066 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2021-11-23 03:34:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 03:34:17,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:17,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:17,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:17,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:17,277 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:17,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:17,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1240558431, now seen corresponding path program 1 times [2021-11-23 03:34:17,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:17,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146614006] [2021-11-23 03:34:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:17,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:17,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:17,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:17,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 03:34:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:17,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 03:34:17,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:17,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 6 treesize of output 5 [2021-11-23 03:34:21,558 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 03:34:21,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-23 03:34:21,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:21,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:23,515 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:23,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146614006] [2021-11-23 03:34:23,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146614006] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:23,515 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:23,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-23 03:34:23,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043281285] [2021-11-23 03:34:23,516 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:23,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 03:34:23,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 03:34:23,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2021-11-23 03:34:23,518 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 10 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:23,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:23,577 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2021-11-23 03:34:23,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:34:23,578 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2021-11-23 03:34:23,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:23,580 INFO L225 Difference]: With dead ends: 38 [2021-11-23 03:34:23,580 INFO L226 Difference]: Without dead ends: 38 [2021-11-23 03:34:23,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=26, Invalid=62, Unknown=2, NotChecked=0, Total=90 [2021-11-23 03:34:23,582 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:23,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 63 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 15 Unchecked, 0.1s Time] [2021-11-23 03:34:23,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-23 03:34:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-23 03:34:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:34:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2021-11-23 03:34:23,598 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 14 [2021-11-23 03:34:23,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:23,598 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2021-11-23 03:34:23,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:23,599 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2021-11-23 03:34:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 03:34:23,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:23,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:23,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:23,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:23,801 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1240558432, now seen corresponding path program 1 times [2021-11-23 03:34:23,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356538022] [2021-11-23 03:34:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:23,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:23,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:23,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:23,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 03:34:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:23,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:34:23,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:23,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 6 treesize of output 5 [2021-11-23 03:34:24,003 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-23 03:34:24,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-11-23 03:34:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:24,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:24,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:24,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356538022] [2021-11-23 03:34:24,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356538022] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:24,286 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:24,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-11-23 03:34:24,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076596724] [2021-11-23 03:34:24,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:24,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:34:24,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:24,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:34:24,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:34:24,288 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:34:24,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:24,351 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2021-11-23 03:34:24,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:34:24,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2021-11-23 03:34:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:24,353 INFO L225 Difference]: With dead ends: 41 [2021-11-23 03:34:24,353 INFO L226 Difference]: Without dead ends: 41 [2021-11-23 03:34:24,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:34:24,355 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:24,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 89 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2021-11-23 03:34:24,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-23 03:34:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2021-11-23 03:34:24,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:34:24,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-11-23 03:34:24,363 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 14 [2021-11-23 03:34:24,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:24,364 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-11-23 03:34:24,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:34:24,365 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-11-23 03:34:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 03:34:24,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:24,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:24,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:24,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:24,580 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:24,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:24,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1470411142, now seen corresponding path program 1 times [2021-11-23 03:34:24,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:24,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080990321] [2021-11-23 03:34:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:24,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:24,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:24,584 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:24,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 03:34:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:24,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:34:24,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:24,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:24,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:24,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:24,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080990321] [2021-11-23 03:34:24,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080990321] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:24,953 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:24,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 03:34:24,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364076911] [2021-11-23 03:34:24,953 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:24,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:34:24,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:24,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:34:24,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:34:24,955 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:25,097 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2021-11-23 03:34:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:34:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2021-11-23 03:34:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:25,098 INFO L225 Difference]: With dead ends: 45 [2021-11-23 03:34:25,099 INFO L226 Difference]: Without dead ends: 37 [2021-11-23 03:34:25,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:34:25,101 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 14 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:25,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 167 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 14 Unchecked, 0.1s Time] [2021-11-23 03:34:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-23 03:34:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-23 03:34:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.1875) internal successors, (38), 33 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:34:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-11-23 03:34:25,108 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 14 [2021-11-23 03:34:25,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:25,109 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-23 03:34:25,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:25,109 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2021-11-23 03:34:25,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 03:34:25,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:25,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:25,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:25,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:25,324 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:25,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1437119700, now seen corresponding path program 1 times [2021-11-23 03:34:25,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:25,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525142123] [2021-11-23 03:34:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:25,326 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:25,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:25,327 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:25,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 03:34:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:25,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:34:25,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:25,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:25,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:25,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525142123] [2021-11-23 03:34:25,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525142123] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:25,614 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:25,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-23 03:34:25,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025453506] [2021-11-23 03:34:25,615 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:25,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:34:25,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:25,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:34:25,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:34:25,616 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:25,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:25,647 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-23 03:34:25,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:34:25,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-11-23 03:34:25,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:25,650 INFO L225 Difference]: With dead ends: 29 [2021-11-23 03:34:25,650 INFO L226 Difference]: Without dead ends: 25 [2021-11-23 03:34:25,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:34:25,652 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:25,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:34:25,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-23 03:34:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-23 03:34:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-11-23 03:34:25,657 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 14 [2021-11-23 03:34:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:25,658 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-11-23 03:34:25,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:25,658 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-11-23 03:34:25,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:34:25,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:25,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:25,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:25,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:25,868 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:25,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:25,868 INFO L85 PathProgramCache]: Analyzing trace with hash 617948704, now seen corresponding path program 1 times [2021-11-23 03:34:25,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:25,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316694060] [2021-11-23 03:34:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:25,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:25,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:25,871 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:25,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 03:34:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:25,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 03:34:25,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:28,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:37,521 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_entry_point_~#a7~0#1.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_ULTIMATE.start_probe1_6_#t~ret40#1.base_36| (_ BitVec 32))) (and (not (= (store (store |c_old(#valid)| |v_ULTIMATE.start_probe1_6_#t~ret40#1.base_36| (_ bv0 1)) |v_ULTIMATE.start_entry_point_~#a7~0#1.base_BEFORE_CALL_4| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4|)) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_probe1_6_#t~ret40#1.base_36|)))))) (= (store (store |c_#valid| |c_ldv_malloc_#res.base| (_ bv0 1)) |v_ULTIMATE.start_entry_point_~#a7~0#1.base_BEFORE_CALL_4| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_4|))) is different from false [2021-11-23 03:34:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:37,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:37,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316694060] [2021-11-23 03:34:37,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316694060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:37,917 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:37,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-11-23 03:34:37,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344566345] [2021-11-23 03:34:37,918 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:37,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 03:34:37,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:37,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 03:34:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=163, Unknown=12, NotChecked=26, Total=240 [2021-11-23 03:34:37,920 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:38,200 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2021-11-23 03:34:38,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:34:38,201 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-11-23 03:34:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:38,202 INFO L225 Difference]: With dead ends: 32 [2021-11-23 03:34:38,202 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 03:34:38,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=46, Invalid=186, Unknown=12, NotChecked=28, Total=272 [2021-11-23 03:34:38,203 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 24 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:38,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 172 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 60 Unchecked, 0.2s Time] [2021-11-23 03:34:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 03:34:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-11-23 03:34:38,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-11-23 03:34:38,208 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 19 [2021-11-23 03:34:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:38,209 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-11-23 03:34:38,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:34:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-11-23 03:34:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:34:38,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:38,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:38,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:38,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:38,411 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1972725463, now seen corresponding path program 1 times [2021-11-23 03:34:38,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:38,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143377303] [2021-11-23 03:34:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:38,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:38,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:38,413 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:38,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 03:34:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:38,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:34:38,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:38,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:38,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:38,642 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:38,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143377303] [2021-11-23 03:34:38,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143377303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:38,642 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:38,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 03:34:38,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536582664] [2021-11-23 03:34:38,643 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:38,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:34:38,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:38,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:34:38,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:34:38,644 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:38,711 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-11-23 03:34:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:34:38,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-23 03:34:38,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:38,713 INFO L225 Difference]: With dead ends: 31 [2021-11-23 03:34:38,713 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 03:34:38,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:34:38,714 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:38,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 126 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:34:38,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 03:34:38,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2021-11-23 03:34:38,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-23 03:34:38,718 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2021-11-23 03:34:38,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:38,718 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-11-23 03:34:38,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:38,719 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-23 03:34:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:34:38,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:38,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:38,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:38,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:38,932 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:38,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:38,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1551551156, now seen corresponding path program 1 times [2021-11-23 03:34:38,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:38,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904781183] [2021-11-23 03:34:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:38,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:38,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:38,935 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:38,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 03:34:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:34:38,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:34:38,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:34:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:39,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:34:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:34:39,102 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:34:39,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904781183] [2021-11-23 03:34:39,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904781183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:34:39,102 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:34:39,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 03:34:39,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416010330] [2021-11-23 03:34:39,103 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:34:39,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:34:39,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:34:39,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:34:39,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:34:39,105 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:39,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:34:39,126 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-23 03:34:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:34:39,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-23 03:34:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:34:39,128 INFO L225 Difference]: With dead ends: 22 [2021-11-23 03:34:39,128 INFO L226 Difference]: Without dead ends: 22 [2021-11-23 03:34:39,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:34:39,130 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 11 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:34:39,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:34:39,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-23 03:34:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-23 03:34:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2021-11-23 03:34:39,134 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 20 [2021-11-23 03:34:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:34:39,135 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2021-11-23 03:34:39,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:34:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2021-11-23 03:34:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 03:34:39,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:34:39,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:39,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:39,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:39,354 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2021-11-23 03:34:39,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:34:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash -857260757, now seen corresponding path program 1 times [2021-11-23 03:34:39,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:34:39,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692545764] [2021-11-23 03:34:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:34:39,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:34:39,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:34:39,356 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:34:39,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 03:34:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:34:39,418 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:34:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:34:39,483 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-23 03:34:39,484 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:34:39,485 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2021-11-23 03:34:39,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (4 of 6 remaining) [2021-11-23 03:34:39,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (3 of 6 remaining) [2021-11-23 03:34:39,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (2 of 6 remaining) [2021-11-23 03:34:39,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (1 of 6 remaining) [2021-11-23 03:34:39,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (0 of 6 remaining) [2021-11-23 03:34:39,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 03:34:39,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:34:39,707 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:34:39,711 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:34:39,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:34:39 BoogieIcfgContainer [2021-11-23 03:34:39,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:34:39,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:34:39,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:34:39,747 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:34:39,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:14" (3/4) ... [2021-11-23 03:34:39,751 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 03:34:39,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:34:39,752 INFO L158 Benchmark]: Toolchain (without parser) took 26702.72ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 47.3MB in the beginning and 71.2MB in the end (delta: -23.9MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2021-11-23 03:34:39,752 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 84.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:34:39,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 933.43ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 32.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 03:34:39,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.88ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 32.3MB in the beginning and 81.2MB in the end (delta: -48.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-11-23 03:34:39,754 INFO L158 Benchmark]: Boogie Preprocessor took 68.61ms. Allocated memory is still 98.6MB. Free memory was 81.2MB in the beginning and 79.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:34:39,754 INFO L158 Benchmark]: RCFGBuilder took 552.42ms. Allocated memory is still 98.6MB. Free memory was 79.5MB in the beginning and 68.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:34:39,755 INFO L158 Benchmark]: TraceAbstraction took 25010.45ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 67.6MB in the beginning and 72.3MB in the end (delta: -4.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-23 03:34:39,755 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 119.5MB. Free memory was 72.3MB in the beginning and 71.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:34:39,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 84.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 933.43ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 32.3MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.88ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 32.3MB in the beginning and 81.2MB in the end (delta: -48.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.61ms. Allocated memory is still 98.6MB. Free memory was 81.2MB in the beginning and 79.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.42ms. Allocated memory is still 98.6MB. Free memory was 79.5MB in the beginning and 68.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 25010.45ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 67.6MB in the beginning and 72.3MB in the end (delta: -4.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 119.5MB. Free memory was 72.3MB in the beginning and 71.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 789]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 789. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L790] CALL entry_point() [L783] struct A a7; [L784] CALL, EXPR probe1_6(&a7) [L764] int ret = - -3; VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(int))={3:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) [L768] CALL, EXPR f6() [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() [L768] ret = f6() [L769] COND FALSE !(ret<0) [L771] CALL, EXPR g6() [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=0] [L774] a->p = p VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=0] [L775] return 0; VAL [\result=0, a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=0] [L784] RET, EXPR probe1_6(&a7) [L784] int ret = probe1_6(&a7); [L785] COND TRUE ret==0 [L786] FCALL disconnect_2_6(&a7) [L790] RET entry_point() - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 24.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 1059 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 107 IncrementalHoareTripleChecker+Unchecked, 783 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 316 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 276 mSDtfsCounter, 316 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 293 GetRequests, 226 SyntacticMatches, 8 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 36 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 288 ConstructedInterpolants, 25 QuantifiedInterpolants, 1903 SizeOfPredicates, 17 NumberOfNonLiveVariables, 534 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 03:34:39,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ea8f6a7-4837-4e0b-ae39-03c7f270c8e3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample