./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.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_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --- 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 [2022-11-18 19:41:13,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:41:13,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:41:13,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:41:13,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:41:13,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:41:13,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:41:13,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:41:13,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:41:13,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:41:13,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:41:13,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:41:13,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:41:13,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:41:13,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:41:13,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:41:13,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:41:13,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:41:13,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:41:13,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:41:13,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:41:13,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:41:13,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:41:13,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:41:13,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:41:13,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:41:13,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:41:13,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:41:13,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:41:13,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:41:13,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:41:13,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:41:13,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:41:13,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:41:13,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:41:13,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:41:13,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:41:13,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:41:13,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:41:13,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:41:13,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:41:13,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 19:41:13,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:41:13,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:41:13,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:41:13,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:41:13,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:41:13,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:41:13,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:41:13,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:41:13,982 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:41:13,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:41:13,983 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:41:13,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:41:13,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:41:13,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:41:13,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:41:13,985 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:41:13,985 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:41:13,985 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:41:13,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:41:13,985 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:41:13,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:41:13,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:41:13,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:41:13,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:41:13,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:41:13,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:41:13,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:41:13,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:41:13,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:41:13,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:41:13,988 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_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 [2022-11-18 19:41:14,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:41:14,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:41:14,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:41:14,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:41:14,351 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:41:14,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-11-18 19:41:14,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/data/62a2a7b76/779cdf53be73491e9ed31a4c0a8881c4/FLAG0ffeec70b [2022-11-18 19:41:15,133 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:41:15,134 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-11-18 19:41:15,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/data/62a2a7b76/779cdf53be73491e9ed31a4c0a8881c4/FLAG0ffeec70b [2022-11-18 19:41:15,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/data/62a2a7b76/779cdf53be73491e9ed31a4c0a8881c4 [2022-11-18 19:41:15,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:41:15,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:41:15,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:41:15,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:41:15,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:41:15,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:41:15" (1/1) ... [2022-11-18 19:41:15,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dba5d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:15, skipping insertion in model container [2022-11-18 19:41:15,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:41:15" (1/1) ... [2022-11-18 19:41:15,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:41:15,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:41:15,665 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_5029cbfc-9120-4dbd-99ae-24bda6871173/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-11-18 19:41:15,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:41:15,899 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:41:15,916 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_5029cbfc-9120-4dbd-99ae-24bda6871173/sv-benchmarks/c/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-11-18 19:41:15,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:41:16,022 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:41:16,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16 WrapperNode [2022-11-18 19:41:16,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:41:16,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:41:16,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:41:16,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:41:16,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,073 INFO L138 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-18 19:41:16,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:41:16,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:41:16,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:41:16,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:41:16,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,097 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:41:16,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:41:16,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:41:16,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:41:16,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (1/1) ... [2022-11-18 19:41:16,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:41:16,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:41:16,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:41:16,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:41:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-18 19:41:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-18 19:41:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:41:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:41:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:41:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:41:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-18 19:41:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-18 19:41:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:41:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:41:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:41:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:41:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:41:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:41:16,188 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:41:16,415 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:41:16,424 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:41:16,812 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:41:16,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:41:16,834 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:41:16,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:41:16 BoogieIcfgContainer [2022-11-18 19:41:16,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:41:16,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:41:16,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:41:16,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:41:16,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:41:15" (1/3) ... [2022-11-18 19:41:16,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd97f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:41:16, skipping insertion in model container [2022-11-18 19:41:16,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:41:16" (2/3) ... [2022-11-18 19:41:16,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd97f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:41:16, skipping insertion in model container [2022-11-18 19:41:16,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:41:16" (3/3) ... [2022-11-18 19:41:16,852 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2022-11-18 19:41:16,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:41:16,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-18 19:41:16,893 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:41:17,066 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:41:17,143 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 19:41:17,165 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 177 transitions, 369 flow [2022-11-18 19:41:17,174 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 177 transitions, 369 flow [2022-11-18 19:41:17,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 177 transitions, 369 flow [2022-11-18 19:41:17,308 INFO L130 PetriNetUnfolder]: 5/174 cut-off events. [2022-11-18 19:41:17,309 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:41:17,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 174 events. 5/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 282 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-11-18 19:41:17,327 INFO L119 LiptonReduction]: Number of co-enabled transitions 10466 [2022-11-18 19:41:25,710 INFO L134 LiptonReduction]: Checked pairs total: 25331 [2022-11-18 19:41:25,711 INFO L136 LiptonReduction]: Total number of compositions: 187 [2022-11-18 19:41:25,724 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 49 transitions, 113 flow [2022-11-18 19:41:26,097 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5554 states, 5531 states have (on average 3.788465015367926) internal successors, (20954), 5553 states have internal predecessors, (20954), 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) [2022-11-18 19:41:26,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:41:26,132 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;@1376ceec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:41:26,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 19:41:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 5554 states, 5531 states have (on average 3.788465015367926) internal successors, (20954), 5553 states have internal predecessors, (20954), 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) [2022-11-18 19:41:26,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 19:41:26,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:26,162 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 19:41:26,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:26,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:26,171 INFO L85 PathProgramCache]: Analyzing trace with hash 660, now seen corresponding path program 1 times [2022-11-18 19:41:26,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:26,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272557723] [2022-11-18 19:41:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:26,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:26,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:26,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272557723] [2022-11-18 19:41:26,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272557723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:26,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:26,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 19:41:26,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053018460] [2022-11-18 19:41:26,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:26,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:41:26,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:41:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:41:26,365 INFO L87 Difference]: Start difference. First operand has 5554 states, 5531 states have (on average 3.788465015367926) internal successors, (20954), 5553 states have internal predecessors, (20954), 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) [2022-11-18 19:41:26,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:26,534 INFO L93 Difference]: Finished difference Result 5552 states and 19822 transitions. [2022-11-18 19:41:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:41:26,537 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 [2022-11-18 19:41:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:26,614 INFO L225 Difference]: With dead ends: 5552 [2022-11-18 19:41:26,614 INFO L226 Difference]: Without dead ends: 5552 [2022-11-18 19:41:26,615 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 [2022-11-18 19:41:26,621 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:26,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:26,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2022-11-18 19:41:26,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 5552. [2022-11-18 19:41:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 5531 states have (on average 3.5838003977580906) internal successors, (19822), 5551 states have internal predecessors, (19822), 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) [2022-11-18 19:41:27,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 19822 transitions. [2022-11-18 19:41:27,169 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 19822 transitions. Word has length 1 [2022-11-18 19:41:27,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:27,169 INFO L495 AbstractCegarLoop]: Abstraction has 5552 states and 19822 transitions. [2022-11-18 19:41:27,171 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) [2022-11-18 19:41:27,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 19822 transitions. [2022-11-18 19:41:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 19:41:27,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:27,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 19:41:27,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:41:27,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:27,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:27,176 INFO L85 PathProgramCache]: Analyzing trace with hash 649705, now seen corresponding path program 1 times [2022-11-18 19:41:27,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:27,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280954763] [2022-11-18 19:41:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:27,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:27,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:27,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:27,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280954763] [2022-11-18 19:41:27,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280954763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:27,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:27,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:41:27,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341385447] [2022-11-18 19:41:27,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:27,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:41:27,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:27,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:41:27,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:27,523 INFO L87 Difference]: Start difference. First operand 5552 states and 19822 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-18 19:41:27,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:27,695 INFO L93 Difference]: Finished difference Result 5542 states and 19802 transitions. [2022-11-18 19:41:27,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:41:27,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-18 19:41:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:27,744 INFO L225 Difference]: With dead ends: 5542 [2022-11-18 19:41:27,745 INFO L226 Difference]: Without dead ends: 5542 [2022-11-18 19:41:27,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:27,750 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:27,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 18 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5542 states. [2022-11-18 19:41:28,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5542 to 5542. [2022-11-18 19:41:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 5522 states have (on average 3.586019558131112) internal successors, (19802), 5541 states have internal predecessors, (19802), 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) [2022-11-18 19:41:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 19802 transitions. [2022-11-18 19:41:28,065 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 19802 transitions. Word has length 3 [2022-11-18 19:41:28,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:28,067 INFO L495 AbstractCegarLoop]: Abstraction has 5542 states and 19802 transitions. [2022-11-18 19:41:28,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-18 19:41:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 19802 transitions. [2022-11-18 19:41:28,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 19:41:28,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:28,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 19:41:28,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:41:28,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:28,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash 649707, now seen corresponding path program 1 times [2022-11-18 19:41:28,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:28,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858675623] [2022-11-18 19:41:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:28,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:28,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:28,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858675623] [2022-11-18 19:41:28,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858675623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:28,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:28,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:41:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117852995] [2022-11-18 19:41:28,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:28,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:41:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:41:28,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:28,307 INFO L87 Difference]: Start difference. First operand 5542 states and 19802 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-18 19:41:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:28,487 INFO L93 Difference]: Finished difference Result 5532 states and 19782 transitions. [2022-11-18 19:41:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:41:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-18 19:41:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:28,536 INFO L225 Difference]: With dead ends: 5532 [2022-11-18 19:41:28,537 INFO L226 Difference]: Without dead ends: 5532 [2022-11-18 19:41:28,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:28,538 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 36 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:28,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 18 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2022-11-18 19:41:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 5532. [2022-11-18 19:41:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5513 states have (on average 3.5882459640848903) internal successors, (19782), 5531 states have internal predecessors, (19782), 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) [2022-11-18 19:41:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 19782 transitions. [2022-11-18 19:41:28,948 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 19782 transitions. Word has length 3 [2022-11-18 19:41:28,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:28,949 INFO L495 AbstractCegarLoop]: Abstraction has 5532 states and 19782 transitions. [2022-11-18 19:41:28,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-18 19:41:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 19782 transitions. [2022-11-18 19:41:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:41:28,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:28,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:41:28,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:41:28,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:28,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:28,951 INFO L85 PathProgramCache]: Analyzing trace with hash 624381868, now seen corresponding path program 1 times [2022-11-18 19:41:28,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:28,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384640747] [2022-11-18 19:41:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:28,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:29,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:29,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384640747] [2022-11-18 19:41:29,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384640747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:29,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:29,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:41:29,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791464013] [2022-11-18 19:41:29,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:29,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:41:29,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:41:29,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:29,037 INFO L87 Difference]: Start difference. First operand 5532 states and 19782 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 19:41:29,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:29,162 INFO L93 Difference]: Finished difference Result 5472 states and 19612 transitions. [2022-11-18 19:41:29,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:41:29,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-18 19:41:29,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:29,197 INFO L225 Difference]: With dead ends: 5472 [2022-11-18 19:41:29,198 INFO L226 Difference]: Without dead ends: 5472 [2022-11-18 19:41:29,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:29,199 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:29,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 18 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:29,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2022-11-18 19:41:29,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5472. [2022-11-18 19:41:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5472 states, 5455 states have (on average 3.5952337305224566) internal successors, (19612), 5471 states have internal predecessors, (19612), 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) [2022-11-18 19:41:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5472 states to 5472 states and 19612 transitions. [2022-11-18 19:41:29,647 INFO L78 Accepts]: Start accepts. Automaton has 5472 states and 19612 transitions. Word has length 5 [2022-11-18 19:41:29,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:29,662 INFO L495 AbstractCegarLoop]: Abstraction has 5472 states and 19612 transitions. [2022-11-18 19:41:29,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 19:41:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states and 19612 transitions. [2022-11-18 19:41:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:41:29,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:29,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:41:29,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:41:29,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash 624381867, now seen corresponding path program 1 times [2022-11-18 19:41:29,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:29,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828550586] [2022-11-18 19:41:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:29,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:29,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:29,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828550586] [2022-11-18 19:41:29,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828550586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:29,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:29,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:41:29,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879500604] [2022-11-18 19:41:29,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:29,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:41:29,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:29,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:41:29,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:29,762 INFO L87 Difference]: Start difference. First operand 5472 states and 19612 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 19:41:29,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:29,912 INFO L93 Difference]: Finished difference Result 5412 states and 19442 transitions. [2022-11-18 19:41:29,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:41:29,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-18 19:41:29,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:29,953 INFO L225 Difference]: With dead ends: 5412 [2022-11-18 19:41:29,954 INFO L226 Difference]: Without dead ends: 5412 [2022-11-18 19:41:29,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:29,957 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:29,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 18 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:29,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2022-11-18 19:41:30,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 5412. [2022-11-18 19:41:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5397 states have (on average 3.602371687974801) internal successors, (19442), 5411 states have internal predecessors, (19442), 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) [2022-11-18 19:41:30,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 19442 transitions. [2022-11-18 19:41:30,319 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 19442 transitions. Word has length 5 [2022-11-18 19:41:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:30,320 INFO L495 AbstractCegarLoop]: Abstraction has 5412 states and 19442 transitions. [2022-11-18 19:41:30,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 19:41:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 19442 transitions. [2022-11-18 19:41:30,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:41:30,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:30,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:30,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:41:30,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:30,322 INFO L85 PathProgramCache]: Analyzing trace with hash -541560065, now seen corresponding path program 1 times [2022-11-18 19:41:30,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:30,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366383926] [2022-11-18 19:41:30,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:30,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:30,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:30,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366383926] [2022-11-18 19:41:30,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366383926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:30,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:30,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:41:30,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904633210] [2022-11-18 19:41:30,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:30,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:41:30,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:30,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:41:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:30,460 INFO L87 Difference]: Start difference. First operand 5412 states and 19442 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:41:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:30,882 INFO L93 Difference]: Finished difference Result 6402 states and 22350 transitions. [2022-11-18 19:41:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:41:30,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-18 19:41:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:30,923 INFO L225 Difference]: With dead ends: 6402 [2022-11-18 19:41:30,923 INFO L226 Difference]: Without dead ends: 6388 [2022-11-18 19:41:30,924 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 [2022-11-18 19:41:30,927 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 140 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:30,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 43 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:41:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2022-11-18 19:41:31,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 6121. [2022-11-18 19:41:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6121 states, 6106 states have (on average 3.5461840812315755) internal successors, (21653), 6120 states have internal predecessors, (21653), 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) [2022-11-18 19:41:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 21653 transitions. [2022-11-18 19:41:31,247 INFO L78 Accepts]: Start accepts. Automaton has 6121 states and 21653 transitions. Word has length 8 [2022-11-18 19:41:31,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:31,247 INFO L495 AbstractCegarLoop]: Abstraction has 6121 states and 21653 transitions. [2022-11-18 19:41:31,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-18 19:41:31,248 INFO L276 IsEmpty]: Start isEmpty. Operand 6121 states and 21653 transitions. [2022-11-18 19:41:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 19:41:31,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:31,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:31,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:41:31,254 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:31,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:31,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1880968861, now seen corresponding path program 1 times [2022-11-18 19:41:31,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:31,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665491455] [2022-11-18 19:41:31,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:31,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:31,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:31,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665491455] [2022-11-18 19:41:31,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665491455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:31,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:31,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:41:31,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656737787] [2022-11-18 19:41:31,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:31,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:41:31,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:31,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:41:31,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:31,392 INFO L87 Difference]: Start difference. First operand 6121 states and 21653 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) [2022-11-18 19:41:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:31,836 INFO L93 Difference]: Finished difference Result 6985 states and 24513 transitions. [2022-11-18 19:41:31,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:41:31,836 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 [2022-11-18 19:41:31,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:31,889 INFO L225 Difference]: With dead ends: 6985 [2022-11-18 19:41:31,889 INFO L226 Difference]: Without dead ends: 6985 [2022-11-18 19:41:31,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:41:31,890 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 120 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:31,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 42 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:41:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6985 states. [2022-11-18 19:41:32,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6985 to 6493. [2022-11-18 19:41:32,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6493 states, 6478 states have (on average 3.535196048163013) internal successors, (22901), 6492 states have internal predecessors, (22901), 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) [2022-11-18 19:41:32,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6493 states to 6493 states and 22901 transitions. [2022-11-18 19:41:32,186 INFO L78 Accepts]: Start accepts. Automaton has 6493 states and 22901 transitions. Word has length 10 [2022-11-18 19:41:32,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:32,186 INFO L495 AbstractCegarLoop]: Abstraction has 6493 states and 22901 transitions. [2022-11-18 19:41:32,186 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) [2022-11-18 19:41:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6493 states and 22901 transitions. [2022-11-18 19:41:32,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:41:32,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:32,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:32,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:41:32,189 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:32,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:32,189 INFO L85 PathProgramCache]: Analyzing trace with hash 299257563, now seen corresponding path program 1 times [2022-11-18 19:41:32,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:32,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881951007] [2022-11-18 19:41:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:32,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:32,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:32,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881951007] [2022-11-18 19:41:32,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881951007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:32,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:32,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:41:32,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100450531] [2022-11-18 19:41:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:32,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:41:32,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:41:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:32,277 INFO L87 Difference]: Start difference. First operand 6493 states and 22901 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-18 19:41:32,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:32,558 INFO L93 Difference]: Finished difference Result 4839 states and 13469 transitions. [2022-11-18 19:41:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:41:32,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2022-11-18 19:41:32,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:32,586 INFO L225 Difference]: With dead ends: 4839 [2022-11-18 19:41:32,586 INFO L226 Difference]: Without dead ends: 4835 [2022-11-18 19:41:32,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:32,588 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:32,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:32,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4835 states. [2022-11-18 19:41:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4835 to 4257. [2022-11-18 19:41:32,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4257 states, 4228 states have (on average 2.8285241248817408) internal successors, (11959), 4256 states have internal predecessors, (11959), 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) [2022-11-18 19:41:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4257 states to 4257 states and 11959 transitions. [2022-11-18 19:41:32,720 INFO L78 Accepts]: Start accepts. Automaton has 4257 states and 11959 transitions. Word has length 11 [2022-11-18 19:41:32,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:32,721 INFO L495 AbstractCegarLoop]: Abstraction has 4257 states and 11959 transitions. [2022-11-18 19:41:32,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-18 19:41:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4257 states and 11959 transitions. [2022-11-18 19:41:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:41:32,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:32,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:32,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:41:32,724 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:32,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:32,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1965618080, now seen corresponding path program 1 times [2022-11-18 19:41:32,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:32,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926835356] [2022-11-18 19:41:32,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:32,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:32,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:32,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926835356] [2022-11-18 19:41:32,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926835356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:32,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:32,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:41:32,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555503807] [2022-11-18 19:41:32,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:32,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:41:32,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:32,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:41:32,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:32,949 INFO L87 Difference]: Start difference. First operand 4257 states and 11959 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) [2022-11-18 19:41:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:33,233 INFO L93 Difference]: Finished difference Result 4410 states and 12409 transitions. [2022-11-18 19:41:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:41:33,233 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 [2022-11-18 19:41:33,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:33,252 INFO L225 Difference]: With dead ends: 4410 [2022-11-18 19:41:33,252 INFO L226 Difference]: Without dead ends: 4331 [2022-11-18 19:41:33,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:41:33,253 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 121 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:33,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 37 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:41:33,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2022-11-18 19:41:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 4286. [2022-11-18 19:41:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4286 states, 4257 states have (on average 2.8278130138595254) internal successors, (12038), 4285 states have internal predecessors, (12038), 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) [2022-11-18 19:41:33,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 12038 transitions. [2022-11-18 19:41:33,440 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 12038 transitions. Word has length 12 [2022-11-18 19:41:33,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:33,440 INFO L495 AbstractCegarLoop]: Abstraction has 4286 states and 12038 transitions. [2022-11-18 19:41:33,440 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) [2022-11-18 19:41:33,441 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 12038 transitions. [2022-11-18 19:41:33,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:41:33,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:33,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:33,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:41:33,442 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash 608887866, now seen corresponding path program 1 times [2022-11-18 19:41:33,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:33,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121003691] [2022-11-18 19:41:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:33,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:33,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:33,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121003691] [2022-11-18 19:41:33,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121003691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:33,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:33,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:41:33,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571106618] [2022-11-18 19:41:33,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:33,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:33,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:33,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:33,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:33,549 INFO L87 Difference]: Start difference. First operand 4286 states and 12038 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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) [2022-11-18 19:41:33,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:33,910 INFO L93 Difference]: Finished difference Result 5033 states and 13929 transitions. [2022-11-18 19:41:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:41:33,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 [2022-11-18 19:41:33,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:33,930 INFO L225 Difference]: With dead ends: 5033 [2022-11-18 19:41:33,930 INFO L226 Difference]: Without dead ends: 5016 [2022-11-18 19:41:33,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:41:33,931 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 152 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:33,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 47 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:41:33,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5016 states. [2022-11-18 19:41:34,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5016 to 4308. [2022-11-18 19:41:34,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4308 states, 4281 states have (on average 2.836720392431675) internal successors, (12144), 4307 states have internal predecessors, (12144), 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) [2022-11-18 19:41:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 12144 transitions. [2022-11-18 19:41:34,050 INFO L78 Accepts]: Start accepts. Automaton has 4308 states and 12144 transitions. Word has length 13 [2022-11-18 19:41:34,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:34,050 INFO L495 AbstractCegarLoop]: Abstraction has 4308 states and 12144 transitions. [2022-11-18 19:41:34,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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) [2022-11-18 19:41:34,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4308 states and 12144 transitions. [2022-11-18 19:41:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:41:34,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:34,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:34,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:41:34,052 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:34,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:34,053 INFO L85 PathProgramCache]: Analyzing trace with hash 495212652, now seen corresponding path program 1 times [2022-11-18 19:41:34,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:34,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817626103] [2022-11-18 19:41:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:34,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:34,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:34,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:34,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817626103] [2022-11-18 19:41:34,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817626103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:34,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:34,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:41:34,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339107354] [2022-11-18 19:41:34,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:34,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:41:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:34,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:41:34,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:34,579 INFO L87 Difference]: Start difference. First operand 4308 states and 12144 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-11-18 19:41:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:34,658 INFO L93 Difference]: Finished difference Result 3611 states and 9821 transitions. [2022-11-18 19:41:34,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:41:34,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2022-11-18 19:41:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:34,671 INFO L225 Difference]: With dead ends: 3611 [2022-11-18 19:41:34,671 INFO L226 Difference]: Without dead ends: 3611 [2022-11-18 19:41:34,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:41:34,672 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 24 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:34,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 18 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2022-11-18 19:41:34,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 3611. [2022-11-18 19:41:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 3588 states have (on average 2.7371794871794872) internal successors, (9821), 3610 states have internal predecessors, (9821), 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) [2022-11-18 19:41:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 9821 transitions. [2022-11-18 19:41:34,773 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 9821 transitions. Word has length 13 [2022-11-18 19:41:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:34,774 INFO L495 AbstractCegarLoop]: Abstraction has 3611 states and 9821 transitions. [2022-11-18 19:41:34,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-11-18 19:41:34,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 9821 transitions. [2022-11-18 19:41:34,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:41:34,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:34,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:34,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:41:34,776 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:34,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:34,776 INFO L85 PathProgramCache]: Analyzing trace with hash 495212576, now seen corresponding path program 1 times [2022-11-18 19:41:34,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:34,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641374083] [2022-11-18 19:41:34,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:34,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:34,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:34,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:34,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641374083] [2022-11-18 19:41:34,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641374083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:34,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:34,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:41:34,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618989141] [2022-11-18 19:41:34,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:34,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:41:34,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:34,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:41:34,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:41:34,849 INFO L87 Difference]: Start difference. First operand 3611 states and 9821 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2022-11-18 19:41:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:34,943 INFO L93 Difference]: Finished difference Result 2914 states and 7498 transitions. [2022-11-18 19:41:34,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:41:34,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 [2022-11-18 19:41:34,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:34,952 INFO L225 Difference]: With dead ends: 2914 [2022-11-18 19:41:34,952 INFO L226 Difference]: Without dead ends: 2614 [2022-11-18 19:41:34,953 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 [2022-11-18 19:41:34,954 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 48 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:34,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 36 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2614 states. [2022-11-18 19:41:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2614 to 2614. [2022-11-18 19:41:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2614 states, 2595 states have (on average 2.5491329479768785) internal successors, (6615), 2613 states have internal predecessors, (6615), 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) [2022-11-18 19:41:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 6615 transitions. [2022-11-18 19:41:35,022 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 6615 transitions. Word has length 13 [2022-11-18 19:41:35,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:35,023 INFO L495 AbstractCegarLoop]: Abstraction has 2614 states and 6615 transitions. [2022-11-18 19:41:35,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2022-11-18 19:41:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 6615 transitions. [2022-11-18 19:41:35,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:41:35,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:35,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:35,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:41:35,025 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:35,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:35,026 INFO L85 PathProgramCache]: Analyzing trace with hash -107102242, now seen corresponding path program 1 times [2022-11-18 19:41:35,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:35,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025288070] [2022-11-18 19:41:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:35,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:35,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:35,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:35,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025288070] [2022-11-18 19:41:35,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025288070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:35,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:35,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:41:35,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937165016] [2022-11-18 19:41:35,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:35,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:41:35,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:35,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:41:35,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:35,223 INFO L87 Difference]: Start difference. First operand 2614 states and 6615 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-18 19:41:35,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:35,317 INFO L93 Difference]: Finished difference Result 1281 states and 2680 transitions. [2022-11-18 19:41:35,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:41:35,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-11-18 19:41:35,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:35,321 INFO L225 Difference]: With dead ends: 1281 [2022-11-18 19:41:35,322 INFO L226 Difference]: Without dead ends: 1222 [2022-11-18 19:41:35,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:35,323 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 54 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:35,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 11 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:35,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2022-11-18 19:41:35,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1194. [2022-11-18 19:41:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1180 states have (on average 2.1313559322033897) internal successors, (2515), 1193 states have internal predecessors, (2515), 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) [2022-11-18 19:41:35,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 2515 transitions. [2022-11-18 19:41:35,358 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 2515 transitions. Word has length 15 [2022-11-18 19:41:35,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:35,358 INFO L495 AbstractCegarLoop]: Abstraction has 1194 states and 2515 transitions. [2022-11-18 19:41:35,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-18 19:41:35,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 2515 transitions. [2022-11-18 19:41:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:41:35,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:35,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:35,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:41:35,360 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:35,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:35,361 INFO L85 PathProgramCache]: Analyzing trace with hash -315299029, now seen corresponding path program 1 times [2022-11-18 19:41:35,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:35,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724793202] [2022-11-18 19:41:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:35,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:35,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:35,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724793202] [2022-11-18 19:41:35,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724793202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:35,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:35,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:41:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184935322] [2022-11-18 19:41:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:35,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:35,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:35,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:35,487 INFO L87 Difference]: Start difference. First operand 1194 states and 2515 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2022-11-18 19:41:35,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:35,909 INFO L93 Difference]: Finished difference Result 1338 states and 2744 transitions. [2022-11-18 19:41:35,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:41:35,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 [2022-11-18 19:41:35,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:35,914 INFO L225 Difference]: With dead ends: 1338 [2022-11-18 19:41:35,914 INFO L226 Difference]: Without dead ends: 1266 [2022-11-18 19:41:35,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:41:35,915 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 171 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:35,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 43 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:41:35,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-11-18 19:41:35,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1111. [2022-11-18 19:41:35,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1100 states have (on average 2.100909090909091) internal successors, (2311), 1110 states have internal predecessors, (2311), 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) [2022-11-18 19:41:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2311 transitions. [2022-11-18 19:41:35,947 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2311 transitions. Word has length 16 [2022-11-18 19:41:35,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:35,948 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 2311 transitions. [2022-11-18 19:41:35,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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) [2022-11-18 19:41:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2311 transitions. [2022-11-18 19:41:35,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 19:41:35,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:35,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:35,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:41:35,951 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:35,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:35,951 INFO L85 PathProgramCache]: Analyzing trace with hash 97131905, now seen corresponding path program 1 times [2022-11-18 19:41:35,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:35,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468540221] [2022-11-18 19:41:35,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:35,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:36,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:36,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468540221] [2022-11-18 19:41:36,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468540221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:36,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:36,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:41:36,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483776791] [2022-11-18 19:41:36,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:36,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:36,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:36,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:36,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:36,150 INFO L87 Difference]: Start difference. First operand 1111 states and 2311 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-11-18 19:41:36,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:36,644 INFO L93 Difference]: Finished difference Result 1265 states and 2636 transitions. [2022-11-18 19:41:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:41:36,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2022-11-18 19:41:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:36,649 INFO L225 Difference]: With dead ends: 1265 [2022-11-18 19:41:36,649 INFO L226 Difference]: Without dead ends: 1179 [2022-11-18 19:41:36,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:41:36,650 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 151 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:36,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 44 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:41:36,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2022-11-18 19:41:36,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1040. [2022-11-18 19:41:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1034 states have (on average 2.0705996131528046) internal successors, (2141), 1039 states have internal predecessors, (2141), 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) [2022-11-18 19:41:36,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 2141 transitions. [2022-11-18 19:41:36,682 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 2141 transitions. Word has length 19 [2022-11-18 19:41:36,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:36,682 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 2141 transitions. [2022-11-18 19:41:36,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-11-18 19:41:36,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 2141 transitions. [2022-11-18 19:41:36,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 19:41:36,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:36,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:36,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:41:36,685 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:36,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:36,686 INFO L85 PathProgramCache]: Analyzing trace with hash -226522551, now seen corresponding path program 1 times [2022-11-18 19:41:36,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:36,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792681669] [2022-11-18 19:41:36,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:36,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:36,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:36,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792681669] [2022-11-18 19:41:36,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792681669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:36,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:36,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:41:36,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138107912] [2022-11-18 19:41:36,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:36,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:41:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:36,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:41:36,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:36,875 INFO L87 Difference]: Start difference. First operand 1040 states and 2141 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-18 19:41:36,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:36,969 INFO L93 Difference]: Finished difference Result 417 states and 711 transitions. [2022-11-18 19:41:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:41:36,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-11-18 19:41:36,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:36,971 INFO L225 Difference]: With dead ends: 417 [2022-11-18 19:41:36,971 INFO L226 Difference]: Without dead ends: 344 [2022-11-18 19:41:36,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:41:36,972 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:36,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:41:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-18 19:41:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 306. [2022-11-18 19:41:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.7836065573770492) internal successors, (544), 305 states have internal predecessors, (544), 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) [2022-11-18 19:41:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 544 transitions. [2022-11-18 19:41:36,982 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 544 transitions. Word has length 19 [2022-11-18 19:41:36,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:36,982 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 544 transitions. [2022-11-18 19:41:36,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-18 19:41:36,983 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 544 transitions. [2022-11-18 19:41:36,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 19:41:36,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:36,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:36,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:41:36,985 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK, t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-18 19:41:36,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:36,986 INFO L85 PathProgramCache]: Analyzing trace with hash 613673214, now seen corresponding path program 1 times [2022-11-18 19:41:36,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:36,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108673747] [2022-11-18 19:41:36,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:36,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:41:37,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:37,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108673747] [2022-11-18 19:41:37,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108673747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:37,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:37,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:41:37,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651907229] [2022-11-18 19:41:37,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:37,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:41:37,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:37,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:41:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:41:37,200 INFO L87 Difference]: Start difference. First operand 306 states and 544 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-18 19:41:37,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:37,411 INFO L93 Difference]: Finished difference Result 281 states and 494 transitions. [2022-11-18 19:41:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:41:37,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2022-11-18 19:41:37,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:37,412 INFO L225 Difference]: With dead ends: 281 [2022-11-18 19:41:37,412 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:41:37,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:41:37,413 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:37,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 18 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:41:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:41:37,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:41:37,414 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) [2022-11-18 19:41:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:41:37,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-18 19:41:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:37,414 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:41:37,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2022-11-18 19:41:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:41:37,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:41:37,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-18 19:41:37,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-18 19:41:37,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-18 19:41:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-18 19:41:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-18 19:41:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-18 19:41:37,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-18 19:41:37,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-18 19:41:37,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (7 of 16 remaining) [2022-11-18 19:41:37,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (6 of 16 remaining) [2022-11-18 19:41:37,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-18 19:41:37,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-18 19:41:37,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-18 19:41:37,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-18 19:41:37,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 16 remaining) [2022-11-18 19:41:37,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-18 19:41:37,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:41:37,424 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:37,429 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:41:37,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:41:37,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:41:37 BasicIcfg [2022-11-18 19:41:37,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:41:37,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:41:37,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:41:37,433 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:41:37,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:41:16" (3/4) ... [2022-11-18 19:41:37,436 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:41:37,442 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-18 19:41:37,442 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2022-11-18 19:41:37,442 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 19:41:37,447 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 19:41:37,447 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:41:37,447 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 19:41:37,448 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:41:37,481 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:41:37,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:41:37,482 INFO L158 Benchmark]: Toolchain (without parser) took 22136.26ms. Allocated memory was 117.4MB in the beginning and 926.9MB in the end (delta: 809.5MB). Free memory was 79.3MB in the beginning and 232.0MB in the end (delta: -152.7MB). Peak memory consumption was 656.1MB. Max. memory is 16.1GB. [2022-11-18 19:41:37,482 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:41:37,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.59ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 81.2MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:41:37,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.41ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:41:37,483 INFO L158 Benchmark]: Boogie Preprocessor took 27.95ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:41:37,484 INFO L158 Benchmark]: RCFGBuilder took 734.11ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 59.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 19:41:37,484 INFO L158 Benchmark]: TraceAbstraction took 20587.29ms. Allocated memory was 117.4MB in the beginning and 926.9MB in the end (delta: 809.5MB). Free memory was 58.5MB in the beginning and 235.2MB in the end (delta: -176.7MB). Peak memory consumption was 633.1MB. Max. memory is 16.1GB. [2022-11-18 19:41:37,485 INFO L158 Benchmark]: Witness Printer took 49.22ms. Allocated memory is still 926.9MB. Free memory was 235.2MB in the beginning and 232.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:41:37,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.59ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 81.2MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.41ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.95ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 734.11ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 59.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 20587.29ms. Allocated memory was 117.4MB in the beginning and 926.9MB in the end (delta: 809.5MB). Free memory was 58.5MB in the beginning and 235.2MB in the end (delta: -176.7MB). Peak memory consumption was 633.1MB. Max. memory is 16.1GB. * Witness Printer took 49.22ms. Allocated memory is still 926.9MB. Free memory was 235.2MB in the beginning and 232.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 182 PlacesBefore, 56 PlacesAfterwards, 177 TransitionsBefore, 49 TransitionsAfterwards, 10466 CoEnabledTransitionPairs, 9 FixpointIterations, 50 TrivialSequentialCompositions, 118 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 2 ChoiceCompositions, 187 TotalNumberOfCompositions, 25331 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14435, independent: 13984, independent conditional: 0, independent unconditional: 13984, dependent: 451, dependent conditional: 0, dependent unconditional: 451, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7428, independent: 7337, independent conditional: 0, independent unconditional: 7337, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7428, independent: 7199, independent conditional: 0, independent unconditional: 7199, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 229, independent: 138, independent conditional: 0, independent unconditional: 138, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 498, independent: 211, independent conditional: 0, independent unconditional: 211, dependent: 288, dependent conditional: 0, dependent unconditional: 288, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14435, independent: 6647, independent conditional: 0, independent unconditional: 6647, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 7428, unknown conditional: 0, unknown unconditional: 7428] , Statistics on independence cache: Total cache size (in pairs): 503, Positive cache size: 464, Positive conditional cache size: 0, Positive unconditional cache size: 464, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 723]: 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, 247 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 20.3s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1221 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1221 mSDsluCounter, 438 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2429 IncrementalHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 193 mSDtfsCounter, 2429 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6493occurred in iteration=7, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 2450 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:41:37,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5029cbfc-9120-4dbd-99ae-24bda6871173/bin/uautomizer-TMbwUNV5ro/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