./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:46:44,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:46:44,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:46:44,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:46:44,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:46:44,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:46:44,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:46:44,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:46:44,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:46:44,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:46:44,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:46:44,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:46:44,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:46:44,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:46:44,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:46:44,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:46:44,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:46:44,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:46:44,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:46:44,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:46:44,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:46:44,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:46:44,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:46:44,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:46:44,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:46:44,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:46:44,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:46:44,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:46:44,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:46:44,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:46:44,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:46:44,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:46:44,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:46:44,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:46:44,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:46:44,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:46:44,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:46:44,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:46:44,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:46:44,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:46:44,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:46:44,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 13:46:44,120 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:46:44,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:46:44,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:46:44,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:46:44,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:46:44,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:46:44,122 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:46:44,122 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:46:44,123 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:46:44,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:46:44,123 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:46:44,123 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:46:44,123 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:46:44,123 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:46:44,123 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:46:44,124 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:46:44,124 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:46:44,124 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:46:44,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 13:46:44,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 13:46:44,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:46:44,125 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:46:44,125 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:46:44,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:46:44,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:46:44,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:46:44,126 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 13:46:44,126 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 13:46:44,126 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 13:46:44,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:46:44,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:46:44,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:46:44,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:46:44,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:46:44,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:46:44,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2022-12-14 13:46:44,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:46:44,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:46:44,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:46:44,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:46:44,344 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:46:44,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2022-12-14 13:46:46,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:46:47,165 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:46:47,166 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2022-12-14 13:46:47,175 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data/8043e6126/a5e3157acbc0489984e306f9fd334ac0/FLAGb111590e8 [2022-12-14 13:46:47,186 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data/8043e6126/a5e3157acbc0489984e306f9fd334ac0 [2022-12-14 13:46:47,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:46:47,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:46:47,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:46:47,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:46:47,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:46:47,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:46:47" (1/1) ... [2022-12-14 13:46:47,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164fcce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:47, skipping insertion in model container [2022-12-14 13:46:47,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:46:47" (1/1) ... [2022-12-14 13:46:47,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:46:47,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:46:47,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:46:47,471 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-12-14 13:46:47,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@372c0022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:47, skipping insertion in model container [2022-12-14 13:46:47,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:46:47,472 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 13:46:47,473 INFO L158 Benchmark]: Toolchain (without parser) took 283.89ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 75.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:46:47,474 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 102.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:46:47,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.27ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 75.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:46:47,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 102.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.27ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 75.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. 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 of different sizes 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:46:48,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:46:48,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:46:48,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:46:48,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:46:48,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:46:48,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:46:48,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:46:48,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:46:48,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:46:48,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:46:48,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:46:48,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:46:48,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:46:48,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:46:48,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:46:48,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:46:48,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:46:48,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:46:48,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:46:48,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:46:48,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:46:48,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:46:48,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:46:48,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:46:48,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:46:48,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:46:48,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:46:48,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:46:48,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:46:48,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:46:48,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:46:48,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:46:48,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:46:48,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:46:48,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:46:48,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:46:48,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:46:48,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:46:48,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:46:48,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:46:48,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 13:46:48,911 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:46:48,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:46:48,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:46:48,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:46:48,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:46:48,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:46:48,912 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:46:48,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:46:48,913 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:46:48,913 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:46:48,913 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:46:48,913 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:46:48,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 13:46:48,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 13:46:48,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:46:48,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:46:48,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:46:48,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:46:48,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:46:48,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:46:48,915 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 13:46:48,915 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 13:46:48,915 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 13:46:48,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:46:48,915 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:46:48,916 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:46:48,916 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:46:48,916 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:46:48,916 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:46:48,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:46:48,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:46:48,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:46:48,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:46:48,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:46:48,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:46:48,917 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:46:48,918 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:46:48,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:46:48,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:46:48,918 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_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2022-12-14 13:46:49,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:46:49,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:46:49,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:46:49,160 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:46:49,161 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:46:49,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2022-12-14 13:46:51,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:46:51,912 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:46:51,913 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2022-12-14 13:46:51,922 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data/26209fd87/1bfad4595a9e42dbbd5c5baf1a49cac8/FLAGac25b0d80 [2022-12-14 13:46:51,933 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/data/26209fd87/1bfad4595a9e42dbbd5c5baf1a49cac8 [2022-12-14 13:46:51,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:46:51,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:46:51,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:46:51,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:46:51,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:46:51,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:46:51" (1/1) ... [2022-12-14 13:46:51,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d80ef5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:51, skipping insertion in model container [2022-12-14 13:46:51,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:46:51" (1/1) ... [2022-12-14 13:46:51,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:46:51,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:46:52,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:46:52,219 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 13:46:52,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:46:52,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:46:52,261 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:46:52,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:46:52,375 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:46:52,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52 WrapperNode [2022-12-14 13:46:52,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:46:52,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:46:52,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:46:52,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:46:52,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,421 INFO L138 Inliner]: procedures = 170, calls = 76, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 54 [2022-12-14 13:46:52,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:46:52,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:46:52,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:46:52,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:46:52,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,445 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:46:52,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:46:52,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:46:52,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:46:52,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (1/1) ... [2022-12-14 13:46:52,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:46:52,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:46:52,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:46:52,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:46:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 13:46:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 13:46:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:46:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:46:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:46:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:46:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:46:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 13:46:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:46:52,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:46:52,612 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:46:52,614 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:46:52,762 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:46:52,767 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:46:52,767 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:46:52,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:46:52 BoogieIcfgContainer [2022-12-14 13:46:52,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:46:52,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:46:52,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:46:52,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:46:52,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:46:51" (1/3) ... [2022-12-14 13:46:52,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6434988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:46:52, skipping insertion in model container [2022-12-14 13:46:52,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:46:52" (2/3) ... [2022-12-14 13:46:52,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6434988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:46:52, skipping insertion in model container [2022-12-14 13:46:52,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:46:52" (3/3) ... [2022-12-14 13:46:52,776 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test7-1.i [2022-12-14 13:46:52,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:46:52,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 13:46:52,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:46:52,845 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a013206, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:46:52,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 13:46:52,849 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) [2022-12-14 13:46:52,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:46:52,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:52,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:52,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:52,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1042630581, now seen corresponding path program 1 times [2022-12-14 13:46:52,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383737024] [2022-12-14 13:46:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:52,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:52,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:52,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:52,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 13:46:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:52,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:46:52,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:53,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:53,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:53,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:53,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383737024] [2022-12-14 13:46:53,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383737024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:53,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:53,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:46:53,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637690928] [2022-12-14 13:46:53,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:53,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:46:53,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:53,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:46:53,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:46:53,065 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) [2022-12-14 13:46:53,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:53,106 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-12-14 13:46:53,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:46:53,109 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 [2022-12-14 13:46:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:53,114 INFO L225 Difference]: With dead ends: 31 [2022-12-14 13:46:53,114 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 13:46:53,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:46:53,117 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:53,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 91 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:46:53,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 13:46:53,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-14 13:46:53,139 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) [2022-12-14 13:46:53,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-12-14 13:46:53,141 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 12 [2022-12-14 13:46:53,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:53,141 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-12-14 13:46:53,141 INFO L496 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) [2022-12-14 13:46:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-12-14 13:46:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:46:53,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:53,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:53,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:46:53,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:53,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:53,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2038190425, now seen corresponding path program 1 times [2022-12-14 13:46:53,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:53,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7567558] [2022-12-14 13:46:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:53,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:53,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:53,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:53,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 13:46:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:53,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 13:46:53,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:53,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:53,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:53,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7567558] [2022-12-14 13:46:53,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7567558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:53,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:53,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:46:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847933661] [2022-12-14 13:46:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:53,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:46:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:53,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:46:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:46:53,687 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 13:46:53,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:53,764 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-12-14 13:46:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:46:53,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-12-14 13:46:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:53,767 INFO L225 Difference]: With dead ends: 52 [2022-12-14 13:46:53,767 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 13:46:53,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:46:53,768 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 46 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:53,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 106 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:46:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 13:46:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 39. [2022-12-14 13:46:53,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.3548387096774193) 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) [2022-12-14 13:46:53,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-12-14 13:46:53,773 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 13 [2022-12-14 13:46:53,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:53,773 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-12-14 13:46:53,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 13:46:53,773 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-12-14 13:46:53,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:46:53,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:53,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:53,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 13:46:53,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:53,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:53,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:53,977 INFO L85 PathProgramCache]: Analyzing trace with hash 230735962, now seen corresponding path program 1 times [2022-12-14 13:46:53,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:53,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737869796] [2022-12-14 13:46:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:53,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:53,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:53,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:53,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 13:46:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:54,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 13:46:54,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:54,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:54,200 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:54,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737869796] [2022-12-14 13:46:54,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737869796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:54,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:54,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:46:54,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134644829] [2022-12-14 13:46:54,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:54,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:46:54,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:46:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:46:54,204 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 13:46:54,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:54,240 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2022-12-14 13:46:54,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:46:54,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-12-14 13:46:54,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:54,242 INFO L225 Difference]: With dead ends: 39 [2022-12-14 13:46:54,242 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 13:46:54,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:46:54,243 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:54,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 117 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:46:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 13:46:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-12-14 13:46:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.28) internal successors, (32), 28 states have internal predecessors, (32), 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) [2022-12-14 13:46:54,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-12-14 13:46:54,247 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 13 [2022-12-14 13:46:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:54,247 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-12-14 13:46:54,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 13:46:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-12-14 13:46:54,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 13:46:54,248 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:54,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:54,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 13:46:54,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:54,451 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:54,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1240606195, now seen corresponding path program 1 times [2022-12-14 13:46:54,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:54,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213326917] [2022-12-14 13:46:54,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:54,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:54,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:54,458 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:54,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 13:46:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:54,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:46:54,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:54,626 INFO L350 Elim1Store]: Elim1 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 7 [2022-12-14 13:46:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:54,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:54,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:54,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213326917] [2022-12-14 13:46:54,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213326917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:54,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:54,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:46:54,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581050698] [2022-12-14 13:46:54,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:54,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:46:54,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:54,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:46:54,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:46:54,664 INFO L87 Difference]: Start difference. First operand 32 states and 35 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) [2022-12-14 13:46:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:54,707 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-12-14 13:46:54,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:46:54,708 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 [2022-12-14 13:46:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:54,708 INFO L225 Difference]: With dead ends: 35 [2022-12-14 13:46:54,708 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 13:46:54,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:46:54,710 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 12 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:54,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 84 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:46:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 13:46:54,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2022-12-14 13:46:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 27 states have internal predecessors, (31), 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) [2022-12-14 13:46:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-12-14 13:46:54,714 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 14 [2022-12-14 13:46:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:54,714 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-12-14 13:46:54,714 INFO L496 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) [2022-12-14 13:46:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-12-14 13:46:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 13:46:54,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:54,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:54,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 13:46:54,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:54,917 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1240558431, now seen corresponding path program 1 times [2022-12-14 13:46:54,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:54,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390326405] [2022-12-14 13:46:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:54,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:54,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:54,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 13:46:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:55,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:46:55,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:55,095 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 13:46:55,138 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| |c_ldv_malloc_#in~size|) |c_#length|)) is different from true [2022-12-14 13:46:55,169 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 13:46:55,170 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 13:46:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:55,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:55,210 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:55,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390326405] [2022-12-14 13:46:55,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390326405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:55,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:55,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:46:55,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636867168] [2022-12-14 13:46:55,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:55,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:46:55,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:55,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:46:55,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2022-12-14 13:46:55,212 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-12-14 13:46:55,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:55,246 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-12-14 13:46:55,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:46:55,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2022-12-14 13:46:55,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:55,247 INFO L225 Difference]: With dead ends: 30 [2022-12-14 13:46:55,247 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 13:46:55,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2022-12-14 13:46:55,248 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:55,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 70 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2022-12-14 13:46:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 13:46:55,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 13:46:55,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 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) [2022-12-14 13:46:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-12-14 13:46:55,252 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 14 [2022-12-14 13:46:55,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:55,252 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-12-14 13:46:55,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-12-14 13:46:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-12-14 13:46:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 13:46:55,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:55,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:55,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 13:46:55,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:55,455 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:55,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:55,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1240558432, now seen corresponding path program 1 times [2022-12-14 13:46:55,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:55,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781116028] [2022-12-14 13:46:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:55,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:55,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:55,461 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:55,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 13:46:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:55,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 13:46:55,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:55,575 INFO L350 Elim1Store]: Elim1 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 7 [2022-12-14 13:46:55,594 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2022-12-14 13:46:55,613 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 13:46:55,613 INFO L350 Elim1Store]: Elim1 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 20 [2022-12-14 13:46:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:55,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:55,634 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:55,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781116028] [2022-12-14 13:46:55,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781116028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:55,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:55,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:46:55,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57166919] [2022-12-14 13:46:55,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:55,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:46:55,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:46:55,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2022-12-14 13:46:55,636 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2022-12-14 13:46:55,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:55,666 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-12-14 13:46:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:46:55,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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 [2022-12-14 13:46:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:55,667 INFO L225 Difference]: With dead ends: 33 [2022-12-14 13:46:55,667 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 13:46:55,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2022-12-14 13:46:55,668 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 13 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:55,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 50 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 31 Unchecked, 0.0s Time] [2022-12-14 13:46:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 13:46:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2022-12-14 13:46:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 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) [2022-12-14 13:46:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-12-14 13:46:55,671 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 14 [2022-12-14 13:46:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:55,671 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-12-14 13:46:55,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2022-12-14 13:46:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-12-14 13:46:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 13:46:55,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:55,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:55,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 13:46:55,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:55,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:55,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1470411142, now seen corresponding path program 1 times [2022-12-14 13:46:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:55,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109502881] [2022-12-14 13:46:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:55,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:55,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:55,875 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:55,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-14 13:46:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:55,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 13:46:55,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:55,975 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_entry_point_~#a7~0#1.base_6| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_6|) (_ bv0 1)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_6| (_ bv0 1))))) is different from true [2022-12-14 13:46:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:55,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:55,982 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:55,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109502881] [2022-12-14 13:46:55,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109502881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:55,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:55,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:46:55,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290961036] [2022-12-14 13:46:55,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:55,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:46:55,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:55,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:46:55,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2022-12-14 13:46:55,984 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2022-12-14 13:46:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:46:56,030 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-12-14 13:46:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:46:56,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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 [2022-12-14 13:46:56,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:46:56,031 INFO L225 Difference]: With dead ends: 35 [2022-12-14 13:46:56,031 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 13:46:56,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2022-12-14 13:46:56,032 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:46:56,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2022-12-14 13:46:56,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 13:46:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 13:46:56,035 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) [2022-12-14 13:46:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-12-14 13:46:56,036 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 14 [2022-12-14 13:46:56,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:46:56,036 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-12-14 13:46:56,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 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) [2022-12-14 13:46:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-12-14 13:46:56,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 13:46:56,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:46:56,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:46:56,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 13:46:56,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:56,239 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:46:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:46:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash 617948704, now seen corresponding path program 1 times [2022-12-14 13:46:56,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:46:56,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015649335] [2022-12-14 13:46:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:46:56,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:46:56,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:46:56,244 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:46:56,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 13:46:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:46:56,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:46:56,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:46:58,674 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_39 (_ BitVec 1)) (|v_ULTIMATE.start_entry_point_~#a7~0#1.base_7| (_ BitVec 32)) (|ULTIMATE.start_probe1_6_~p~0#1.base| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_7| v_ArrVal_39))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_7|) (_ bv0 1)) (= |c_#valid| (store (store .cse0 |ULTIMATE.start_probe1_6_~p~0#1.base| (_ bv0 1)) |v_ULTIMATE.start_entry_point_~#a7~0#1.base_7| (_ bv0 1))) (= (_ bv0 1) (select .cse0 |ULTIMATE.start_probe1_6_~p~0#1.base|))))) is different from true [2022-12-14 13:46:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:46:58,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:46:58,687 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:46:58,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015649335] [2022-12-14 13:46:58,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015649335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:46:58,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:46:58,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 13:46:58,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885803217] [2022-12-14 13:46:58,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:46:58,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 13:46:58,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:46:58,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 13:46:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=42, Unknown=2, NotChecked=12, Total=72 [2022-12-14 13:46:58,689 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-12-14 13:47:00,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 13:47:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:00,832 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-12-14 13:47:00,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:47:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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 19 [2022-12-14 13:47:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:00,833 INFO L225 Difference]: With dead ends: 31 [2022-12-14 13:47:00,833 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 13:47:00,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=53, Unknown=2, NotChecked=14, Total=90 [2022-12-14 13:47:00,834 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:47:00,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 75 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 2 Unknown, 36 Unchecked, 2.1s Time] [2022-12-14 13:47:00,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 13:47:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 13:47:00,835 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) [2022-12-14 13:47:00,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-12-14 13:47:00,836 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2022-12-14 13:47:00,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:00,836 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-12-14 13:47:00,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 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) [2022-12-14 13:47:00,836 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-12-14 13:47:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 13:47:00,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:00,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:00,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 13:47:01,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:47:01,038 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:47:01,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:01,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1551551156, now seen corresponding path program 1 times [2022-12-14 13:47:01,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:47:01,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496183279] [2022-12-14 13:47:01,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:01,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:47:01,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:47:01,044 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:47:01,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 13:47:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:47:01,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:47:01,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:47:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:47:01,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:47:01,127 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:47:01,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496183279] [2022-12-14 13:47:01,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496183279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:47:01,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:47:01,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:47:01,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71611471] [2022-12-14 13:47:01,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:47:01,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:47:01,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:47:01,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:47:01,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:47:01,129 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) [2022-12-14 13:47:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:47:01,140 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-12-14 13:47:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:47:01,141 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 [2022-12-14 13:47:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:47:01,141 INFO L225 Difference]: With dead ends: 22 [2022-12-14 13:47:01,141 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 13:47:01,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:47:01,142 INFO L413 NwaCegarLoop]: 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 [2022-12-14 13:47:01,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:47:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 13:47:01,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 13:47:01,145 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) [2022-12-14 13:47:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2022-12-14 13:47:01,145 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 20 [2022-12-14 13:47:01,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:47:01,145 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2022-12-14 13:47:01,145 INFO L496 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) [2022-12-14 13:47:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2022-12-14 13:47:01,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 13:47:01,146 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:47:01,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:01,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 13:47:01,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:47:01,348 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2022-12-14 13:47:01,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:47:01,350 INFO L85 PathProgramCache]: Analyzing trace with hash -857260757, now seen corresponding path program 1 times [2022-12-14 13:47:01,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:47:01,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035981447] [2022-12-14 13:47:01,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:47:01,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:47:01,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:47:01,354 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:47:01,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 13:47:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:47:01,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:47:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:47:01,499 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:47:01,500 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:47:01,500 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2022-12-14 13:47:01,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-12-14 13:47:01,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-12-14 13:47:01,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (2 of 6 remaining) [2022-12-14 13:47:01,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (1 of 6 remaining) [2022-12-14 13:47:01,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (0 of 6 remaining) [2022-12-14 13:47:01,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-14 13:47:01,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:47:01,707 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:47:01,712 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:47:01,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:47:01 BoogieIcfgContainer [2022-12-14 13:47:01,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:47:01,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:47:01,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:47:01,747 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:47:01,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:46:52" (3/4) ... [2022-12-14 13:47:01,751 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:47:01,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:47:01,751 INFO L158 Benchmark]: Toolchain (without parser) took 9815.23ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 46.6MB in the beginning and 39.9MB in the end (delta: 6.7MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-12-14 13:47:01,752 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:47:01,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.93ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 46.3MB in the beginning and 63.8MB in the end (delta: -17.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-12-14 13:47:01,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.35ms. Allocated memory is still 92.3MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:47:01,752 INFO L158 Benchmark]: Boogie Preprocessor took 26.59ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:47:01,753 INFO L158 Benchmark]: RCFGBuilder took 318.43ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 46.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:47:01,753 INFO L158 Benchmark]: TraceAbstraction took 8976.45ms. Allocated memory is still 92.3MB. Free memory was 45.7MB in the beginning and 40.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-12-14 13:47:01,753 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 92.3MB. Free memory was 40.6MB in the beginning and 39.9MB in the end (delta: 701.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:47:01,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.93ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 46.3MB in the beginning and 63.8MB in the end (delta: -17.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.35ms. Allocated memory is still 92.3MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.59ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.43ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 46.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8976.45ms. Allocated memory is still 92.3MB. Free memory was 45.7MB in the beginning and 40.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 92.3MB. Free memory was 40.6MB in the beginning and 39.9MB in the end (delta: 701.1kB). Peak memory consumption was 2.1MB. 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: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: 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: 8.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 705 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 134 IncrementalHoareTripleChecker+Unchecked, 465 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 240 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 28 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 27 QuantifiedInterpolants, 868 SizeOfPredicates, 11 NumberOfNonLiveVariables, 511 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 [2022-12-14 13:47:01,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4b1362-bddd-48f4-bf0c-58a20fe57b7d/bin/utaipan-gh47qXpMRh/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