./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS --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 c5d6625a918041bec3ddf6b8a37ec84fd94f58444755be51392d35f521d3d51e --- 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-8393723 [2022-11-19 07:47:58,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:47:58,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:47:58,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:47:58,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:47:58,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:47:58,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:47:58,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:47:58,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:47:58,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:47:58,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:47:58,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:47:58,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:47:58,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:47:58,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:47:58,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:47:58,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:47:58,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:47:58,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:47:58,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:47:58,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:47:58,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:47:58,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:47:58,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:47:58,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:47:58,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:47:58,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:47:58,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:47:58,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:47:58,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:47:58,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:47:58,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:47:58,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:47:58,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:47:58,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:47:58,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:47:58,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:47:58,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:47:58,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:47:58,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:47:58,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:47:58,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 07:47:58,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:47:58,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:47:58,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:47:58,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:47:58,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:47:58,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:47:58,996 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:47:58,996 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:47:58,997 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:47:58,997 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:47:58,998 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:47:58,998 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:47:58,998 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:47:58,998 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:47:58,998 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:47:58,999 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:47:58,999 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:47:58,999 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:47:59,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 07:47:59,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 07:47:59,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:47:59,001 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:47:59,001 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:47:59,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:47:59,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:47:59,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:47:59,002 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 07:47:59,002 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 07:47:59,002 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 07:47:59,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:47:59,003 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:47:59,003 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:47:59,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:47:59,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:47:59,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:47:59,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:47:59,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:47:59,004 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:47:59,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:47:59,004 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:47:59,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:47:59,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:47:59,005 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_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5d6625a918041bec3ddf6b8a37ec84fd94f58444755be51392d35f521d3d51e [2022-11-19 07:47:59,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:47:59,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:47:59,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:47:59,302 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:47:59,303 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:47:59,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/safe011_tso.i [2022-11-19 07:47:59,378 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/data/52afd5558/4e0c674c137445ecb41a59ba2c540ee8/FLAGe02a0350e [2022-11-19 07:47:59,984 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:47:59,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/sv-benchmarks/c/pthread-wmm/safe011_tso.i [2022-11-19 07:47:59,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/data/52afd5558/4e0c674c137445ecb41a59ba2c540ee8/FLAGe02a0350e [2022-11-19 07:48:00,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/data/52afd5558/4e0c674c137445ecb41a59ba2c540ee8 [2022-11-19 07:48:00,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:48:00,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:48:00,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:48:00,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:48:00,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:48:00,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8d209f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00, skipping insertion in model container [2022-11-19 07:48:00,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:48:00,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:48:00,606 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/sv-benchmarks/c/pthread-wmm/safe011_tso.i[945,958] [2022-11-19 07:48:00,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:48:00,761 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:48:00,773 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/sv-benchmarks/c/pthread-wmm/safe011_tso.i[945,958] [2022-11-19 07:48:00,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:48:00,841 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:48:00,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00 WrapperNode [2022-11-19 07:48:00,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:48:00,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:48:00,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:48:00,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:48:00,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,911 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-19 07:48:00,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:48:00,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:48:00,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:48:00,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:48:00,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:48:00,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:48:00,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:48:00,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:48:00,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (1/1) ... [2022-11-19 07:48:00,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:48:00,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:01,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:48:01,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:48:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:48:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:48:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:48:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:48:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:48:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 07:48:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 07:48:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 07:48:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 07:48:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 07:48:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 07:48:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:48:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:48:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:48:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:48:01,067 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:48:01,258 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:48:01,260 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:48:01,509 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:48:01,517 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:48:01,517 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:48:01,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:01 BoogieIcfgContainer [2022-11-19 07:48:01,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:48:01,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:48:01,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:48:01,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:48:01,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:00" (1/3) ... [2022-11-19 07:48:01,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e7208f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:01, skipping insertion in model container [2022-11-19 07:48:01,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:00" (2/3) ... [2022-11-19 07:48:01,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e7208f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:01, skipping insertion in model container [2022-11-19 07:48:01,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:01" (3/3) ... [2022-11-19 07:48:01,536 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2022-11-19 07:48:01,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:48:01,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 07:48:01,560 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:48:01,672 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:48:01,730 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:48:01,748 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 101 transitions, 217 flow [2022-11-19 07:48:01,756 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 101 transitions, 217 flow [2022-11-19 07:48:01,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 101 transitions, 217 flow [2022-11-19 07:48:01,837 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-11-19 07:48:01,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:48:01,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-19 07:48:01,847 INFO L119 LiptonReduction]: Number of co-enabled transitions 1800 [2022-11-19 07:48:05,503 INFO L134 LiptonReduction]: Checked pairs total: 3499 [2022-11-19 07:48:05,503 INFO L136 LiptonReduction]: Total number of compositions: 98 [2022-11-19 07:48:05,512 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 30 transitions, 75 flow [2022-11-19 07:48:05,585 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:05,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:48:05,616 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;@60fff7f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:48:05,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-19 07:48:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:05,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:48:05,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:05,625 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:48:05,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:05,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash 359, now seen corresponding path program 1 times [2022-11-19 07:48:05,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:05,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67230699] [2022-11-19 07:48:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:05,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:05,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:05,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:05,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67230699] [2022-11-19 07:48:05,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67230699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:05,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:05,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:48:05,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392187682] [2022-11-19 07:48:05,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:05,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:48:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:05,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:48:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:48:05,778 INFO L87 Difference]: Start difference. First operand has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:05,859 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2022-11-19 07:48:05,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:48:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 07:48:05,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:05,887 INFO L225 Difference]: With dead ends: 362 [2022-11-19 07:48:05,888 INFO L226 Difference]: Without dead ends: 362 [2022-11-19 07:48:05,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:48:05,893 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:05,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:48:05,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-19 07:48:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-11-19 07:48:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 360 states have (on average 2.977777777777778) internal successors, (1072), 361 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 1072 transitions. [2022-11-19 07:48:05,987 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 1072 transitions. Word has length 1 [2022-11-19 07:48:05,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:05,988 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 1072 transitions. [2022-11-19 07:48:05,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 1072 transitions. [2022-11-19 07:48:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:48:05,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:05,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:05,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:48:05,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:05,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:05,997 INFO L85 PathProgramCache]: Analyzing trace with hash 332027383, now seen corresponding path program 1 times [2022-11-19 07:48:05,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:05,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296667975] [2022-11-19 07:48:05,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:05,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:06,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:06,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:06,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296667975] [2022-11-19 07:48:06,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296667975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:06,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:06,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:06,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44908778] [2022-11-19 07:48:06,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:06,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:06,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:06,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:06,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:06,665 INFO L87 Difference]: Start difference. First operand 362 states and 1072 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:06,764 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2022-11-19 07:48:06,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:48:06,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:48:06,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:06,769 INFO L225 Difference]: With dead ends: 298 [2022-11-19 07:48:06,769 INFO L226 Difference]: Without dead ends: 298 [2022-11-19 07:48:06,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:06,772 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:06,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:06,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-11-19 07:48:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2022-11-19 07:48:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.909090909090909) internal successors, (864), 297 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2022-11-19 07:48:06,795 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 9 [2022-11-19 07:48:06,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:06,796 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2022-11-19 07:48:06,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:06,796 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2022-11-19 07:48:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:48:06,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:06,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:06,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:48:06,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:06,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:06,800 INFO L85 PathProgramCache]: Analyzing trace with hash 332027369, now seen corresponding path program 1 times [2022-11-19 07:48:06,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:06,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265427254] [2022-11-19 07:48:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:07,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:07,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265427254] [2022-11-19 07:48:07,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265427254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:07,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:07,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:48:07,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898411769] [2022-11-19 07:48:07,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:07,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:07,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:07,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:07,082 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:07,191 INFO L93 Difference]: Finished difference Result 572 states and 1557 transitions. [2022-11-19 07:48:07,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:48:07,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:48:07,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:07,195 INFO L225 Difference]: With dead ends: 572 [2022-11-19 07:48:07,195 INFO L226 Difference]: Without dead ends: 420 [2022-11-19 07:48:07,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:07,196 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:07,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 20 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-19 07:48:07,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 340. [2022-11-19 07:48:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 339 states have (on average 2.7315634218289087) internal successors, (926), 339 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 926 transitions. [2022-11-19 07:48:07,210 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 926 transitions. Word has length 9 [2022-11-19 07:48:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:07,211 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 926 transitions. [2022-11-19 07:48:07,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,211 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 926 transitions. [2022-11-19 07:48:07,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:48:07,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:07,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:07,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:48:07,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:07,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:07,214 INFO L85 PathProgramCache]: Analyzing trace with hash 565547748, now seen corresponding path program 1 times [2022-11-19 07:48:07,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:07,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066042516] [2022-11-19 07:48:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:07,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:07,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:07,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066042516] [2022-11-19 07:48:07,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066042516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:07,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:07,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:07,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703161991] [2022-11-19 07:48:07,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:07,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:07,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:07,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:07,352 INFO L87 Difference]: Start difference. First operand 340 states and 926 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:07,475 INFO L93 Difference]: Finished difference Result 464 states and 1193 transitions. [2022-11-19 07:48:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:48:07,476 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:48:07,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:07,479 INFO L225 Difference]: With dead ends: 464 [2022-11-19 07:48:07,479 INFO L226 Difference]: Without dead ends: 378 [2022-11-19 07:48:07,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:48:07,482 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 34 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:07,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 26 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-19 07:48:07,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2022-11-19 07:48:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 2.687719298245614) internal successors, (766), 285 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 766 transitions. [2022-11-19 07:48:07,494 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 766 transitions. Word has length 10 [2022-11-19 07:48:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:07,496 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 766 transitions. [2022-11-19 07:48:07,496 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 766 transitions. [2022-11-19 07:48:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:48:07,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:07,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:07,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:48:07,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:07,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:07,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1702871067, now seen corresponding path program 1 times [2022-11-19 07:48:07,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:07,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099596516] [2022-11-19 07:48:07,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:07,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:07,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:07,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099596516] [2022-11-19 07:48:07,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099596516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:07,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:07,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:07,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178365918] [2022-11-19 07:48:07,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:07,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:07,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:07,667 INFO L87 Difference]: Start difference. First operand 286 states and 766 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:07,788 INFO L93 Difference]: Finished difference Result 434 states and 1094 transitions. [2022-11-19 07:48:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:48:07,788 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:48:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:07,790 INFO L225 Difference]: With dead ends: 434 [2022-11-19 07:48:07,791 INFO L226 Difference]: Without dead ends: 354 [2022-11-19 07:48:07,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:48:07,791 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 37 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:07,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 22 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:07,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-19 07:48:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 274. [2022-11-19 07:48:07,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 2.652014652014652) internal successors, (724), 273 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 724 transitions. [2022-11-19 07:48:07,802 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 724 transitions. Word has length 10 [2022-11-19 07:48:07,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:07,802 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 724 transitions. [2022-11-19 07:48:07,802 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 724 transitions. [2022-11-19 07:48:07,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:48:07,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:07,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:07,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:48:07,804 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:07,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:07,804 INFO L85 PathProgramCache]: Analyzing trace with hash -392884348, now seen corresponding path program 1 times [2022-11-19 07:48:07,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:07,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623476111] [2022-11-19 07:48:07,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:07,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:07,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:07,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623476111] [2022-11-19 07:48:07,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623476111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:07,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:07,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:07,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089351298] [2022-11-19 07:48:07,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:07,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:07,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:07,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:07,926 INFO L87 Difference]: Start difference. First operand 274 states and 724 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:08,079 INFO L93 Difference]: Finished difference Result 439 states and 1102 transitions. [2022-11-19 07:48:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:48:08,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:48:08,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:08,082 INFO L225 Difference]: With dead ends: 439 [2022-11-19 07:48:08,082 INFO L226 Difference]: Without dead ends: 358 [2022-11-19 07:48:08,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:48:08,083 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 54 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:08,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 20 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:08,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-11-19 07:48:08,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 272. [2022-11-19 07:48:08,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 2.623616236162362) internal successors, (711), 271 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 711 transitions. [2022-11-19 07:48:08,093 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 711 transitions. Word has length 11 [2022-11-19 07:48:08,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:08,093 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 711 transitions. [2022-11-19 07:48:08,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 711 transitions. [2022-11-19 07:48:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:48:08,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:08,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:08,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:48:08,095 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:08,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:08,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1249347940, now seen corresponding path program 2 times [2022-11-19 07:48:08,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:08,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149378343] [2022-11-19 07:48:08,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:08,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:08,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:08,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149378343] [2022-11-19 07:48:08,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149378343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:08,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:08,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:08,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787215698] [2022-11-19 07:48:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:08,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:08,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:08,214 INFO L87 Difference]: Start difference. First operand 272 states and 711 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:08,341 INFO L93 Difference]: Finished difference Result 390 states and 963 transitions. [2022-11-19 07:48:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:48:08,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:48:08,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:08,344 INFO L225 Difference]: With dead ends: 390 [2022-11-19 07:48:08,344 INFO L226 Difference]: Without dead ends: 330 [2022-11-19 07:48:08,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:48:08,345 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 35 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:08,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 21 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-11-19 07:48:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 248. [2022-11-19 07:48:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 2.582995951417004) internal successors, (638), 247 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 638 transitions. [2022-11-19 07:48:08,354 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 638 transitions. Word has length 11 [2022-11-19 07:48:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:08,354 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 638 transitions. [2022-11-19 07:48:08,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 638 transitions. [2022-11-19 07:48:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:48:08,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:08,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:08,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:48:08,356 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:08,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1970834529, now seen corresponding path program 1 times [2022-11-19 07:48:08,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:08,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573249565] [2022-11-19 07:48:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:08,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:08,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:08,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573249565] [2022-11-19 07:48:08,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573249565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:08,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:08,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:08,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287227375] [2022-11-19 07:48:08,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:08,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:08,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:08,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:08,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:08,471 INFO L87 Difference]: Start difference. First operand 248 states and 638 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:08,566 INFO L93 Difference]: Finished difference Result 283 states and 692 transitions. [2022-11-19 07:48:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:48:08,567 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 07:48:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:08,568 INFO L225 Difference]: With dead ends: 283 [2022-11-19 07:48:08,568 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 07:48:08,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:48:08,569 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 41 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:08,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 16 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:08,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 07:48:08,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 07:48:08,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.3404255319148937) internal successors, (330), 141 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 330 transitions. [2022-11-19 07:48:08,574 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 330 transitions. Word has length 12 [2022-11-19 07:48:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:08,575 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 330 transitions. [2022-11-19 07:48:08,575 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 330 transitions. [2022-11-19 07:48:08,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 07:48:08,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:08,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:08,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:48:08,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:08,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:08,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1476561999, now seen corresponding path program 1 times [2022-11-19 07:48:08,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:08,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674398941] [2022-11-19 07:48:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:08,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:08,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:08,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674398941] [2022-11-19 07:48:08,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674398941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:08,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:08,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:08,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412657560] [2022-11-19 07:48:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:08,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:08,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:08,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:08,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:08,681 INFO L87 Difference]: Start difference. First operand 142 states and 330 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:08,727 INFO L93 Difference]: Finished difference Result 152 states and 321 transitions. [2022-11-19 07:48:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:48:08,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 07:48:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:08,728 INFO L225 Difference]: With dead ends: 152 [2022-11-19 07:48:08,728 INFO L226 Difference]: Without dead ends: 120 [2022-11-19 07:48:08,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:08,730 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 29 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:08,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 9 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:48:08,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-19 07:48:08,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-11-19 07:48:08,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 2.1260504201680672) internal successors, (253), 119 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 253 transitions. [2022-11-19 07:48:08,734 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 253 transitions. Word has length 13 [2022-11-19 07:48:08,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:08,735 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 253 transitions. [2022-11-19 07:48:08,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 253 transitions. [2022-11-19 07:48:08,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:48:08,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:08,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:08,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:48:08,736 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:08,737 INFO L85 PathProgramCache]: Analyzing trace with hash -488360831, now seen corresponding path program 1 times [2022-11-19 07:48:08,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:08,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532670887] [2022-11-19 07:48:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:08,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:08,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:08,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:08,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532670887] [2022-11-19 07:48:08,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532670887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:08,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:08,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:48:08,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502557556] [2022-11-19 07:48:08,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:08,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:48:08,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:08,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:48:08,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:08,882 INFO L87 Difference]: Start difference. First operand 120 states and 253 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:08,942 INFO L93 Difference]: Finished difference Result 106 states and 207 transitions. [2022-11-19 07:48:08,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:48:08,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-19 07:48:08,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:08,944 INFO L225 Difference]: With dead ends: 106 [2022-11-19 07:48:08,944 INFO L226 Difference]: Without dead ends: 86 [2022-11-19 07:48:08,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:48:08,945 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 51 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:08,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 10 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:48:08,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-19 07:48:08,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-19 07:48:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.9529411764705882) internal successors, (166), 85 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 166 transitions. [2022-11-19 07:48:08,949 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 166 transitions. Word has length 14 [2022-11-19 07:48:08,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:08,950 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 166 transitions. [2022-11-19 07:48:08,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 166 transitions. [2022-11-19 07:48:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:48:08,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:08,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:08,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:48:08,952 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash 228834714, now seen corresponding path program 1 times [2022-11-19 07:48:08,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:08,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226659412] [2022-11-19 07:48:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:08,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:09,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:09,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:09,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226659412] [2022-11-19 07:48:09,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226659412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:09,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:09,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:48:09,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954128084] [2022-11-19 07:48:09,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:09,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:48:09,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:09,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:48:09,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:48:09,071 INFO L87 Difference]: Start difference. First operand 86 states and 166 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:09,135 INFO L93 Difference]: Finished difference Result 115 states and 214 transitions. [2022-11-19 07:48:09,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:48:09,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 07:48:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:09,136 INFO L225 Difference]: With dead ends: 115 [2022-11-19 07:48:09,137 INFO L226 Difference]: Without dead ends: 79 [2022-11-19 07:48:09,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:48:09,137 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:09,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 11 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:48:09,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-19 07:48:09,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2022-11-19 07:48:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.75) internal successors, (133), 76 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 133 transitions. [2022-11-19 07:48:09,141 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 133 transitions. Word has length 16 [2022-11-19 07:48:09,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:09,141 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 133 transitions. [2022-11-19 07:48:09,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:09,142 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2022-11-19 07:48:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:48:09,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:48:09,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:09,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:48:09,143 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-19 07:48:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:48:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1435820608, now seen corresponding path program 1 times [2022-11-19 07:48:09,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:48:09,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427060004] [2022-11-19 07:48:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:48:09,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:48:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:48:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:09,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:48:09,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427060004] [2022-11-19 07:48:09,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427060004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:09,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:48:09,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:48:09,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414699788] [2022-11-19 07:48:09,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:09,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:48:09,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:09,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:48:09,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:48:09,260 INFO L87 Difference]: Start difference. First operand 77 states and 133 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:48:09,319 INFO L93 Difference]: Finished difference Result 67 states and 118 transitions. [2022-11-19 07:48:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:48:09,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 07:48:09,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:48:09,320 INFO L225 Difference]: With dead ends: 67 [2022-11-19 07:48:09,320 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:48:09,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:48:09,321 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 62 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:48:09,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 5 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:48:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:48:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:48:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:09,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:48:09,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-19 07:48:09,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:48:09,323 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:48:09,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:48:09,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:48:09,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:48:09,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-11-19 07:48:09,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-19 07:48:09,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-19 07:48:09,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-19 07:48:09,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-19 07:48:09,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-19 07:48:09,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-11-19 07:48:09,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-11-19 07:48:09,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-11-19 07:48:09,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-11-19 07:48:09,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-11-19 07:48:09,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:48:09,331 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:48:09,334 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:48:09,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:48:09,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:48:09 BasicIcfg [2022-11-19 07:48:09,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:48:09,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:48:09,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:48:09,337 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:48:09,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:01" (3/4) ... [2022-11-19 07:48:09,340 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:48:09,346 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 07:48:09,347 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 07:48:09,347 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 07:48:09,351 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-19 07:48:09,351 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 07:48:09,351 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:48:09,352 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:48:09,381 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:48:09,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:48:09,382 INFO L158 Benchmark]: Toolchain (without parser) took 9079.32ms. Allocated memory was 130.0MB in the beginning and 199.2MB in the end (delta: 69.2MB). Free memory was 89.4MB in the beginning and 73.1MB in the end (delta: 16.3MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2022-11-19 07:48:09,382 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:48:09,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.55ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 93.7MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:48:09,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.38ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 91.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:48:09,383 INFO L158 Benchmark]: Boogie Preprocessor took 54.82ms. Allocated memory is still 130.0MB. Free memory was 91.6MB in the beginning and 89.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:48:09,384 INFO L158 Benchmark]: RCFGBuilder took 552.31ms. Allocated memory is still 130.0MB. Free memory was 89.9MB in the beginning and 75.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 07:48:09,384 INFO L158 Benchmark]: TraceAbstraction took 7809.90ms. Allocated memory was 130.0MB in the beginning and 199.2MB in the end (delta: 69.2MB). Free memory was 74.8MB in the beginning and 75.2MB in the end (delta: -333.9kB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2022-11-19 07:48:09,384 INFO L158 Benchmark]: Witness Printer took 44.60ms. Allocated memory is still 199.2MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:48:09,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.55ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 93.7MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.38ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 91.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.82ms. Allocated memory is still 130.0MB. Free memory was 91.6MB in the beginning and 89.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.31ms. Allocated memory is still 130.0MB. Free memory was 89.9MB in the beginning and 75.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7809.90ms. Allocated memory was 130.0MB in the beginning and 199.2MB in the end (delta: 69.2MB). Free memory was 74.8MB in the beginning and 75.2MB in the end (delta: -333.9kB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. * Witness Printer took 44.60ms. Allocated memory is still 199.2MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 109 PlacesBefore, 39 PlacesAfterwards, 101 TransitionsBefore, 30 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 98 TotalNumberOfCompositions, 3499 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1883, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1175, independent: 1147, independent conditional: 0, independent unconditional: 1147, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1175, independent: 1145, independent conditional: 0, independent unconditional: 1145, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 80, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1883, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 1175, unknown conditional: 0, unknown unconditional: 1175] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 774]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 124 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 391 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 391 mSDsluCounter, 181 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 708 IncrementalHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 73 mSDtfsCounter, 708 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=404occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 422 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 07:48:09,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_939305ad-9276-4e6c-8d33-4e518d3999e1/bin/utaipan-I9t0OCRTmS/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: TRUE