./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f 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_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8 --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 ff6ec4010c0396675f743c4c0d5de68176a7292a1f0bcf6c389633f85d936d1a --- 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-e04fb08 [2022-11-16 11:39:21,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:39:21,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:39:22,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:39:22,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:39:22,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:39:22,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:39:22,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:39:22,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:39:22,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:39:22,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:39:22,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:39:22,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:39:22,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:39:22,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:39:22,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:39:22,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:39:22,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:39:22,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:39:22,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:39:22,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:39:22,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:39:22,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:39:22,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:39:22,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:39:22,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:39:22,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:39:22,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:39:22,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:39:22,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:39:22,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:39:22,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:39:22,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:39:22,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:39:22,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:39:22,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:39:22,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:39:22,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:39:22,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:39:22,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:39:22,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:39:22,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:39:22,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:39:22,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:39:22,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:39:22,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:39:22,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:39:22,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:39:22,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:39:22,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:39:22,089 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:39:22,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:39:22,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:39:22,090 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:39:22,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:39:22,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:39:22,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:39:22,091 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:39:22,091 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:39:22,092 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:39:22,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:39:22,092 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:39:22,092 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:39:22,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:39:22,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:39:22,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:39:22,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:39:22,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:39:22,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:39:22,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:39:22,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:39:22,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:39:22,095 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_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff6ec4010c0396675f743c4c0d5de68176a7292a1f0bcf6c389633f85d936d1a [2022-11-16 11:39:22,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:39:22,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:39:22,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:39:22,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:39:22,444 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:39:22,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/heap-manipulation/tree-2.i [2022-11-16 11:39:22,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/data/d0edf8a4a/56c6d84bb4c741b8bbdd5031710aea47/FLAGe0f6d478f [2022-11-16 11:39:23,301 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:39:23,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/sv-benchmarks/c/heap-manipulation/tree-2.i [2022-11-16 11:39:23,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/data/d0edf8a4a/56c6d84bb4c741b8bbdd5031710aea47/FLAGe0f6d478f [2022-11-16 11:39:23,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/data/d0edf8a4a/56c6d84bb4c741b8bbdd5031710aea47 [2022-11-16 11:39:23,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:39:23,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:39:23,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:39:23,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:39:23,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:39:23,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:39:23" (1/1) ... [2022-11-16 11:39:23,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efbce2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:23, skipping insertion in model container [2022-11-16 11:39:23,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:39:23" (1/1) ... [2022-11-16 11:39:23,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:39:23,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:39:24,113 WARN L229 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_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/sv-benchmarks/c/heap-manipulation/tree-2.i[22626,22639] [2022-11-16 11:39:24,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:39:24,179 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:39:24,236 WARN L229 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_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/sv-benchmarks/c/heap-manipulation/tree-2.i[22626,22639] [2022-11-16 11:39:24,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:39:24,287 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:39:24,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24 WrapperNode [2022-11-16 11:39:24,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:39:24,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:39:24,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:39:24,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:39:24,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,371 INFO L138 Inliner]: procedures = 122, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2022-11-16 11:39:24,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:39:24,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:39:24,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:39:24,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:39:24,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,442 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:39:24,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:39:24,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:39:24,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:39:24,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (1/1) ... [2022-11-16 11:39:24,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:39:24,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:39:24,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:39:24,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:39:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:39:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-11-16 11:39:24,562 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-11-16 11:39:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:39:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:39:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:39:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:39:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:39:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:39:24,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:39:24,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:39:24,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:39:24,783 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:39:24,785 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:39:25,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:39:25,411 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:39:25,411 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-16 11:39:25,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:39:25 BoogieIcfgContainer [2022-11-16 11:39:25,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:39:25,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:39:25,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:39:25,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:39:25,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:39:23" (1/3) ... [2022-11-16 11:39:25,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624ec4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:39:25, skipping insertion in model container [2022-11-16 11:39:25,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:24" (2/3) ... [2022-11-16 11:39:25,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624ec4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:39:25, skipping insertion in model container [2022-11-16 11:39:25,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:39:25" (3/3) ... [2022-11-16 11:39:25,428 INFO L112 eAbstractionObserver]: Analyzing ICFG tree-2.i [2022-11-16 11:39:25,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:39:25,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2022-11-16 11:39:25,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:39:25,566 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;@7d70fffa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:39:25,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-16 11:39:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 77 states have (on average 2.168831168831169) internal successors, (167), 143 states have internal predecessors, (167), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 11:39:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:39:25,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:25,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:39:25,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:25,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:25,605 INFO L85 PathProgramCache]: Analyzing trace with hash 31591658, now seen corresponding path program 1 times [2022-11-16 11:39:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:25,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522904539] [2022-11-16 11:39:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:25,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:25,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:25,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522904539] [2022-11-16 11:39:25,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522904539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:25,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:25,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:25,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527698508] [2022-11-16 11:39:25,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:25,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:39:25,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:25,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:39:25,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:39:25,839 INFO L87 Difference]: Start difference. First operand has 145 states, 77 states have (on average 2.168831168831169) internal successors, (167), 143 states have internal predecessors, (167), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 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) [2022-11-16 11:39:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:25,884 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2022-11-16 11:39:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:39:25,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2022-11-16 11:39:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:25,900 INFO L225 Difference]: With dead ends: 143 [2022-11-16 11:39:25,900 INFO L226 Difference]: Without dead ends: 141 [2022-11-16 11:39:25,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:39:25,906 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:25,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-16 11:39:25,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-11-16 11:39:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 75 states have (on average 1.9866666666666666) internal successors, (149), 139 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2022-11-16 11:39:25,979 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 5 [2022-11-16 11:39:25,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:25,982 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2022-11-16 11:39:25,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2022-11-16 11:39:25,983 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2022-11-16 11:39:25,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:39:25,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:25,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:39:25,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:39:25,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:25,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash 978320808, now seen corresponding path program 1 times [2022-11-16 11:39:25,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:25,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488520944] [2022-11-16 11:39:25,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:25,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:26,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:26,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:26,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488520944] [2022-11-16 11:39:26,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488520944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:26,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:26,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:26,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651735767] [2022-11-16 11:39:26,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:26,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:26,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:26,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:26,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:26,176 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-16 11:39:26,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:26,304 INFO L93 Difference]: Finished difference Result 144 states and 156 transitions. [2022-11-16 11:39:26,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:26,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-16 11:39:26,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:26,306 INFO L225 Difference]: With dead ends: 144 [2022-11-16 11:39:26,308 INFO L226 Difference]: Without dead ends: 144 [2022-11-16 11:39:26,308 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 [2022-11-16 11:39:26,310 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 88 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:26,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 179 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:39:26,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-16 11:39:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-11-16 11:39:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 78 states have (on average 1.9615384615384615) internal successors, (153), 142 states have internal predecessors, (153), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:26,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 156 transitions. [2022-11-16 11:39:26,329 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 156 transitions. Word has length 6 [2022-11-16 11:39:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:26,331 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 156 transitions. [2022-11-16 11:39:26,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-16 11:39:26,334 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 156 transitions. [2022-11-16 11:39:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:39:26,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:26,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:39:26,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:39:26,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:26,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash 978321707, now seen corresponding path program 1 times [2022-11-16 11:39:26,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:26,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008289436] [2022-11-16 11:39:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:26,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:26,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:26,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008289436] [2022-11-16 11:39:26,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008289436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:26,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:26,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:26,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156806217] [2022-11-16 11:39:26,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:26,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:26,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:26,509 INFO L87 Difference]: Start difference. First operand 144 states and 156 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-16 11:39:26,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:26,797 INFO L93 Difference]: Finished difference Result 219 states and 241 transitions. [2022-11-16 11:39:26,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:26,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-16 11:39:26,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:26,801 INFO L225 Difference]: With dead ends: 219 [2022-11-16 11:39:26,815 INFO L226 Difference]: Without dead ends: 219 [2022-11-16 11:39:26,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:26,817 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 129 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:26,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 234 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:39:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-16 11:39:26,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 138. [2022-11-16 11:39:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 80 states have (on average 1.8625) internal successors, (149), 136 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 152 transitions. [2022-11-16 11:39:26,827 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 152 transitions. Word has length 6 [2022-11-16 11:39:26,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:26,827 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 152 transitions. [2022-11-16 11:39:26,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-16 11:39:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 152 transitions. [2022-11-16 11:39:26,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:39:26,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:26,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:39:26,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:39:26,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:26,830 INFO L85 PathProgramCache]: Analyzing trace with hash 978321708, now seen corresponding path program 1 times [2022-11-16 11:39:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:26,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149038349] [2022-11-16 11:39:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:26,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:26,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:26,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:26,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149038349] [2022-11-16 11:39:26,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149038349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:26,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:26,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:26,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581763884] [2022-11-16 11:39:26,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:26,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:26,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:26,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:26,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:26,987 INFO L87 Difference]: Start difference. First operand 138 states and 152 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-16 11:39:27,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:27,261 INFO L93 Difference]: Finished difference Result 240 states and 262 transitions. [2022-11-16 11:39:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:27,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-16 11:39:27,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:27,266 INFO L225 Difference]: With dead ends: 240 [2022-11-16 11:39:27,267 INFO L226 Difference]: Without dead ends: 240 [2022-11-16 11:39:27,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:27,269 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 124 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:27,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 264 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:39:27,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-16 11:39:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 150. [2022-11-16 11:39:27,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 95 states have (on average 1.768421052631579) internal successors, (168), 148 states have internal predecessors, (168), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 171 transitions. [2022-11-16 11:39:27,282 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 171 transitions. Word has length 6 [2022-11-16 11:39:27,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:27,282 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 171 transitions. [2022-11-16 11:39:27,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-16 11:39:27,283 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 171 transitions. [2022-11-16 11:39:27,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:39:27,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:27,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:27,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:39:27,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:27,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:27,285 INFO L85 PathProgramCache]: Analyzing trace with hash -493316198, now seen corresponding path program 1 times [2022-11-16 11:39:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:27,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305023376] [2022-11-16 11:39:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:27,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:27,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305023376] [2022-11-16 11:39:27,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305023376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:27,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:27,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:27,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048317110] [2022-11-16 11:39:27,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:27,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:27,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:27,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:27,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:27,327 INFO L87 Difference]: Start difference. First operand 150 states and 171 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:27,499 INFO L93 Difference]: Finished difference Result 229 states and 259 transitions. [2022-11-16 11:39:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:27,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:39:27,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:27,504 INFO L225 Difference]: With dead ends: 229 [2022-11-16 11:39:27,504 INFO L226 Difference]: Without dead ends: 228 [2022-11-16 11:39:27,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:27,514 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 79 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:27,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 193 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:39:27,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-16 11:39:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 153. [2022-11-16 11:39:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 98 states have (on average 1.7448979591836735) internal successors, (171), 151 states have internal predecessors, (171), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 174 transitions. [2022-11-16 11:39:27,543 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 174 transitions. Word has length 9 [2022-11-16 11:39:27,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:27,547 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 174 transitions. [2022-11-16 11:39:27,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 174 transitions. [2022-11-16 11:39:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:39:27,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:27,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:27,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:39:27,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:27,550 INFO L85 PathProgramCache]: Analyzing trace with hash -466102223, now seen corresponding path program 1 times [2022-11-16 11:39:27,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:27,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404810351] [2022-11-16 11:39:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:27,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:27,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:27,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404810351] [2022-11-16 11:39:27,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404810351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:27,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:27,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:27,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463096455] [2022-11-16 11:39:27,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:27,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:27,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:27,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:27,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:27,692 INFO L87 Difference]: Start difference. First operand 153 states and 174 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:27,717 INFO L93 Difference]: Finished difference Result 238 states and 267 transitions. [2022-11-16 11:39:27,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:27,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:39:27,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:27,719 INFO L225 Difference]: With dead ends: 238 [2022-11-16 11:39:27,719 INFO L226 Difference]: Without dead ends: 238 [2022-11-16 11:39:27,720 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 [2022-11-16 11:39:27,721 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 91 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:27,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 271 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:27,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-16 11:39:27,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 157. [2022-11-16 11:39:27,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 102 states have (on average 1.7156862745098038) internal successors, (175), 155 states have internal predecessors, (175), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 178 transitions. [2022-11-16 11:39:27,730 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 178 transitions. Word has length 9 [2022-11-16 11:39:27,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:27,731 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 178 transitions. [2022-11-16 11:39:27,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,732 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2022-11-16 11:39:27,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:39:27,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:27,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:27,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:39:27,733 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:27,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:27,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1630553122, now seen corresponding path program 1 times [2022-11-16 11:39:27,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:27,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394562066] [2022-11-16 11:39:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:27,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:27,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:27,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394562066] [2022-11-16 11:39:27,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394562066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:27,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:27,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:27,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991326714] [2022-11-16 11:39:27,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:27,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:39:27,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:27,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:39:27,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:39:27,862 INFO L87 Difference]: Start difference. First operand 157 states and 178 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:27,928 INFO L93 Difference]: Finished difference Result 162 states and 181 transitions. [2022-11-16 11:39:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 11:39:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:27,930 INFO L225 Difference]: With dead ends: 162 [2022-11-16 11:39:27,930 INFO L226 Difference]: Without dead ends: 158 [2022-11-16 11:39:27,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:39:27,932 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 11 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:27,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 538 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:39:27,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-16 11:39:27,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 153. [2022-11-16 11:39:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 98 states have (on average 1.7346938775510203) internal successors, (170), 151 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 173 transitions. [2022-11-16 11:39:27,940 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 173 transitions. Word has length 11 [2022-11-16 11:39:27,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:27,940 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 173 transitions. [2022-11-16 11:39:27,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 173 transitions. [2022-11-16 11:39:27,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 11:39:27,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:27,942 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:27,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:39:27,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:27,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:27,944 INFO L85 PathProgramCache]: Analyzing trace with hash 543499593, now seen corresponding path program 1 times [2022-11-16 11:39:27,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:27,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087101545] [2022-11-16 11:39:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:27,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:28,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:28,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087101545] [2022-11-16 11:39:28,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087101545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:28,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:28,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:28,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101861836] [2022-11-16 11:39:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:28,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:28,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:28,007 INFO L87 Difference]: Start difference. First operand 153 states and 173 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-16 11:39:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:28,074 INFO L93 Difference]: Finished difference Result 162 states and 173 transitions. [2022-11-16 11:39:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-11-16 11:39:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:28,076 INFO L225 Difference]: With dead ends: 162 [2022-11-16 11:39:28,076 INFO L226 Difference]: Without dead ends: 162 [2022-11-16 11:39:28,076 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 [2022-11-16 11:39:28,078 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 29 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:28,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 237 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:39:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-16 11:39:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 153. [2022-11-16 11:39:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 98 states have (on average 1.7244897959183674) internal successors, (169), 151 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 172 transitions. [2022-11-16 11:39:28,085 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 172 transitions. Word has length 18 [2022-11-16 11:39:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:28,085 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 172 transitions. [2022-11-16 11:39:28,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-16 11:39:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 172 transitions. [2022-11-16 11:39:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 11:39:28,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:28,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:28,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:39:28,088 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash 570713568, now seen corresponding path program 1 times [2022-11-16 11:39:28,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:28,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348452297] [2022-11-16 11:39:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:28,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:28,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:28,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348452297] [2022-11-16 11:39:28,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348452297] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:39:28,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306485378] [2022-11-16 11:39:28,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:28,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:39:28,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:39:28,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:39:28,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:39:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:28,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 11:39:28,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:39:28,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:39:28,703 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:39:28,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:39:28,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:28,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:39:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:29,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306485378] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:39:29,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:39:29,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 6 [2022-11-16 11:39:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117416135] [2022-11-16 11:39:29,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:39:29,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:39:29,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:39:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:39:29,023 INFO L87 Difference]: Start difference. First operand 153 states and 172 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-11-16 11:39:29,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:29,223 INFO L93 Difference]: Finished difference Result 195 states and 216 transitions. [2022-11-16 11:39:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:29,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 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 18 [2022-11-16 11:39:29,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:29,226 INFO L225 Difference]: With dead ends: 195 [2022-11-16 11:39:29,226 INFO L226 Difference]: Without dead ends: 195 [2022-11-16 11:39:29,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:39:29,230 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 386 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:29,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 208 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 94 Unchecked, 0.2s Time] [2022-11-16 11:39:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-16 11:39:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 152. [2022-11-16 11:39:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 98 states have (on average 1.7142857142857142) internal successors, (168), 150 states have internal predecessors, (168), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:29,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 171 transitions. [2022-11-16 11:39:29,242 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 171 transitions. Word has length 18 [2022-11-16 11:39:29,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:29,242 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 171 transitions. [2022-11-16 11:39:29,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 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) [2022-11-16 11:39:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 171 transitions. [2022-11-16 11:39:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 11:39:29,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:29,244 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:29,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:39:29,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:39:29,452 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:29,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:29,452 INFO L85 PathProgramCache]: Analyzing trace with hash 570713569, now seen corresponding path program 1 times [2022-11-16 11:39:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:29,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563110654] [2022-11-16 11:39:29,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:29,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:29,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:29,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563110654] [2022-11-16 11:39:29,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563110654] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:39:29,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557576642] [2022-11-16 11:39:29,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:29,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:39:29,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:39:29,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:39:29,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:39:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:30,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-16 11:39:30,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:39:30,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:39:30,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:39:30,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:39:30,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-16 11:39:30,192 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 11:39:30,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 11:39:30,217 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:30,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:39:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:34,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557576642] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:39:34,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:39:34,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-11-16 11:39:34,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563273683] [2022-11-16 11:39:34,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:39:34,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:39:34,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:39:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:39:34,729 INFO L87 Difference]: Start difference. First operand 152 states and 171 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 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) [2022-11-16 11:39:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:35,223 INFO L93 Difference]: Finished difference Result 203 states and 216 transitions. [2022-11-16 11:39:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:35,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 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 18 [2022-11-16 11:39:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:35,225 INFO L225 Difference]: With dead ends: 203 [2022-11-16 11:39:35,226 INFO L226 Difference]: Without dead ends: 203 [2022-11-16 11:39:35,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:39:35,227 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 279 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 136 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:35,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 264 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 136 Unchecked, 0.4s Time] [2022-11-16 11:39:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-16 11:39:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 151. [2022-11-16 11:39:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 98 states have (on average 1.7040816326530612) internal successors, (167), 149 states have internal predecessors, (167), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 170 transitions. [2022-11-16 11:39:35,236 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 170 transitions. Word has length 18 [2022-11-16 11:39:35,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:35,236 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 170 transitions. [2022-11-16 11:39:35,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 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) [2022-11-16 11:39:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 170 transitions. [2022-11-16 11:39:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 11:39:35,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:35,238 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:35,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 11:39:35,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 11:39:35,445 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:35,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:35,446 INFO L85 PathProgramCache]: Analyzing trace with hash -317039615, now seen corresponding path program 1 times [2022-11-16 11:39:35,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:35,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131967015] [2022-11-16 11:39:35,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:35,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:39:35,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:35,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131967015] [2022-11-16 11:39:35,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131967015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:35,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:35,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:39:35,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823000298] [2022-11-16 11:39:35,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:35,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:39:35,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:35,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:39:35,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:39:35,648 INFO L87 Difference]: Start difference. First operand 151 states and 170 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-16 11:39:35,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:35,865 INFO L93 Difference]: Finished difference Result 150 states and 168 transitions. [2022-11-16 11:39:35,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:39:35,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 [2022-11-16 11:39:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:35,867 INFO L225 Difference]: With dead ends: 150 [2022-11-16 11:39:35,867 INFO L226 Difference]: Without dead ends: 150 [2022-11-16 11:39:35,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:39:35,868 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 8 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:35,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 364 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:39:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-16 11:39:35,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-16 11:39:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 98 states have (on average 1.683673469387755) internal successors, (165), 148 states have internal predecessors, (165), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 168 transitions. [2022-11-16 11:39:35,873 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 168 transitions. Word has length 19 [2022-11-16 11:39:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:35,873 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 168 transitions. [2022-11-16 11:39:35,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-16 11:39:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 168 transitions. [2022-11-16 11:39:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 11:39:35,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:35,874 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:35,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:39:35,875 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:35,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:35,878 INFO L85 PathProgramCache]: Analyzing trace with hash -317039614, now seen corresponding path program 1 times [2022-11-16 11:39:35,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:35,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498227502] [2022-11-16 11:39:35,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:35,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:39:36,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:36,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498227502] [2022-11-16 11:39:36,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498227502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:36,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:36,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:39:36,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821478985] [2022-11-16 11:39:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:36,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:39:36,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:39:36,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:39:36,243 INFO L87 Difference]: Start difference. First operand 150 states and 168 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-16 11:39:36,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:36,455 INFO L93 Difference]: Finished difference Result 149 states and 166 transitions. [2022-11-16 11:39:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:39:36,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 [2022-11-16 11:39:36,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:36,458 INFO L225 Difference]: With dead ends: 149 [2022-11-16 11:39:36,458 INFO L226 Difference]: Without dead ends: 149 [2022-11-16 11:39:36,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:39:36,460 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 6 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:36,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 377 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:39:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-16 11:39:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-16 11:39:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.663265306122449) internal successors, (163), 147 states have internal predecessors, (163), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 166 transitions. [2022-11-16 11:39:36,465 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 166 transitions. Word has length 19 [2022-11-16 11:39:36,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:36,465 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 166 transitions. [2022-11-16 11:39:36,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-16 11:39:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 166 transitions. [2022-11-16 11:39:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 11:39:36,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:36,467 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:36,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:39:36,467 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash -294047799, now seen corresponding path program 1 times [2022-11-16 11:39:36,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:36,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922679647] [2022-11-16 11:39:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:36,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:36,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:36,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922679647] [2022-11-16 11:39:36,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922679647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:36,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:36,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:39:36,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600338090] [2022-11-16 11:39:36,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:36,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:39:36,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:36,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:39:36,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:39:36,778 INFO L87 Difference]: Start difference. First operand 149 states and 166 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-11-16 11:39:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:37,245 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2022-11-16 11:39:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:39:37,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2022-11-16 11:39:37,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:37,247 INFO L225 Difference]: With dead ends: 150 [2022-11-16 11:39:37,247 INFO L226 Difference]: Without dead ends: 150 [2022-11-16 11:39:37,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:39:37,248 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 47 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:37,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 539 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:39:37,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-16 11:39:37,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2022-11-16 11:39:37,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.653061224489796) internal successors, (162), 147 states have internal predecessors, (162), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 165 transitions. [2022-11-16 11:39:37,253 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 165 transitions. Word has length 22 [2022-11-16 11:39:37,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:37,253 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 165 transitions. [2022-11-16 11:39:37,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-11-16 11:39:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 165 transitions. [2022-11-16 11:39:37,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 11:39:37,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:37,255 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:37,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:39:37,256 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:37,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:37,256 INFO L85 PathProgramCache]: Analyzing trace with hash -294047798, now seen corresponding path program 1 times [2022-11-16 11:39:37,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:37,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636126635] [2022-11-16 11:39:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:37,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:37,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:37,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636126635] [2022-11-16 11:39:37,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636126635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:37,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:37,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:39:37,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526671260] [2022-11-16 11:39:37,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:37,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:39:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:37,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:39:37,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:39:37,667 INFO L87 Difference]: Start difference. First operand 149 states and 165 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-11-16 11:39:38,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:38,199 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2022-11-16 11:39:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:39:38,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2022-11-16 11:39:38,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:38,201 INFO L225 Difference]: With dead ends: 149 [2022-11-16 11:39:38,201 INFO L226 Difference]: Without dead ends: 149 [2022-11-16 11:39:38,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:39:38,203 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 45 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:38,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 487 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:39:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-16 11:39:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-16 11:39:38,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.6428571428571428) internal successors, (161), 147 states have internal predecessors, (161), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 164 transitions. [2022-11-16 11:39:38,209 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 164 transitions. Word has length 22 [2022-11-16 11:39:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:38,209 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 164 transitions. [2022-11-16 11:39:38,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-11-16 11:39:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 164 transitions. [2022-11-16 11:39:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 11:39:38,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:38,210 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:38,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:39:38,211 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:38,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:38,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1755349544, now seen corresponding path program 1 times [2022-11-16 11:39:38,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:38,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256012313] [2022-11-16 11:39:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:38,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:38,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:38,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256012313] [2022-11-16 11:39:38,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256012313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:38,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:38,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:39:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740723841] [2022-11-16 11:39:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:38,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:39:38,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:38,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:39:38,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:39:38,603 INFO L87 Difference]: Start difference. First operand 149 states and 164 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-11-16 11:39:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:39,237 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2022-11-16 11:39:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:39:39,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 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 25 [2022-11-16 11:39:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:39,244 INFO L225 Difference]: With dead ends: 150 [2022-11-16 11:39:39,244 INFO L226 Difference]: Without dead ends: 150 [2022-11-16 11:39:39,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:39:39,245 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 52 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:39,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 610 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:39:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-16 11:39:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2022-11-16 11:39:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.6326530612244898) internal successors, (160), 147 states have internal predecessors, (160), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 163 transitions. [2022-11-16 11:39:39,255 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 163 transitions. Word has length 25 [2022-11-16 11:39:39,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:39,256 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 163 transitions. [2022-11-16 11:39:39,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-11-16 11:39:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 163 transitions. [2022-11-16 11:39:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 11:39:39,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:39,259 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:39,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:39:39,259 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:39,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1755349545, now seen corresponding path program 1 times [2022-11-16 11:39:39,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:39,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868742027] [2022-11-16 11:39:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:39,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:39,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:39,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868742027] [2022-11-16 11:39:39,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868742027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:39,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:39,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:39:39,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955418436] [2022-11-16 11:39:39,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:39,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:39:39,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:39,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:39:39,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:39:39,740 INFO L87 Difference]: Start difference. First operand 149 states and 163 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-11-16 11:39:40,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:40,367 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2022-11-16 11:39:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:39:40,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 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 25 [2022-11-16 11:39:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:40,369 INFO L225 Difference]: With dead ends: 149 [2022-11-16 11:39:40,369 INFO L226 Difference]: Without dead ends: 149 [2022-11-16 11:39:40,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:39:40,370 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 50 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:40,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 640 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:39:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-16 11:39:40,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-16 11:39:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.6224489795918366) internal successors, (159), 147 states have internal predecessors, (159), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 162 transitions. [2022-11-16 11:39:40,374 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 162 transitions. Word has length 25 [2022-11-16 11:39:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:40,375 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 162 transitions. [2022-11-16 11:39:40,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-11-16 11:39:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 162 transitions. [2022-11-16 11:39:40,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:39:40,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:40,381 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:40,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:39:40,381 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:40,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:40,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1903478128, now seen corresponding path program 1 times [2022-11-16 11:39:40,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:40,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424549558] [2022-11-16 11:39:40,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:40,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:40,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:40,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424549558] [2022-11-16 11:39:40,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424549558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:40,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:40,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:39:40,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096417908] [2022-11-16 11:39:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:39:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:39:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:39:40,806 INFO L87 Difference]: Start difference. First operand 149 states and 162 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-11-16 11:39:41,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:41,388 INFO L93 Difference]: Finished difference Result 151 states and 162 transitions. [2022-11-16 11:39:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:39:41,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2022-11-16 11:39:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:41,389 INFO L225 Difference]: With dead ends: 151 [2022-11-16 11:39:41,389 INFO L226 Difference]: Without dead ends: 151 [2022-11-16 11:39:41,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:39:41,390 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 66 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:41,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 539 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:39:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-16 11:39:41,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2022-11-16 11:39:41,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.6122448979591837) internal successors, (158), 147 states have internal predecessors, (158), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:41,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 161 transitions. [2022-11-16 11:39:41,396 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 161 transitions. Word has length 28 [2022-11-16 11:39:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:41,397 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 161 transitions. [2022-11-16 11:39:41,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-11-16 11:39:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 161 transitions. [2022-11-16 11:39:41,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 11:39:41,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:41,400 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:41,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:39:41,401 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:41,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:41,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1903478127, now seen corresponding path program 1 times [2022-11-16 11:39:41,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:41,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156894271] [2022-11-16 11:39:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:41,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:42,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:42,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156894271] [2022-11-16 11:39:42,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156894271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:42,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:42,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:39:42,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039485525] [2022-11-16 11:39:42,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:42,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:39:42,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:42,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:39:42,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:39:42,093 INFO L87 Difference]: Start difference. First operand 149 states and 161 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-11-16 11:39:42,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:39:42,727 INFO L93 Difference]: Finished difference Result 149 states and 160 transitions. [2022-11-16 11:39:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:39:42,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2022-11-16 11:39:42,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:39:42,730 INFO L225 Difference]: With dead ends: 149 [2022-11-16 11:39:42,730 INFO L226 Difference]: Without dead ends: 149 [2022-11-16 11:39:42,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:39:42,731 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 55 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:39:42,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 643 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:39:42,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-16 11:39:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-16 11:39:42,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.6020408163265305) internal successors, (157), 147 states have internal predecessors, (157), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 160 transitions. [2022-11-16 11:39:42,737 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 160 transitions. Word has length 28 [2022-11-16 11:39:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:39:42,739 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 160 transitions. [2022-11-16 11:39:42,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-11-16 11:39:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 160 transitions. [2022-11-16 11:39:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:39:42,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:39:42,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:42,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:39:42,743 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-16 11:39:42,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:42,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1030942896, now seen corresponding path program 1 times [2022-11-16 11:39:42,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:42,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109956154] [2022-11-16 11:39:42,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:42,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:43,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:43,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109956154] [2022-11-16 11:39:43,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109956154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:39:43,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293223143] [2022-11-16 11:39:43,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:43,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:39:43,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:39:43,770 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:39:43,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5d6477d-06ad-4f8f-a15f-6df76480b1ce/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:39:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:43,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-16 11:39:43,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:39:43,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:39:44,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:39:44,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:39:44,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-16 11:39:44,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-16 11:39:44,105 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 11:39:44,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 11:39:44,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 11:39:44,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 11:39:44,204 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 11:39:44,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-16 11:39:44,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-11-16 11:39:44,316 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 11:39:44,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-16 11:39:44,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-11-16 11:39:44,439 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 11:39:44,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-16 11:39:44,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-11-16 11:39:44,533 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 11:39:44,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-16 11:39:44,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-11-16 11:39:44,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-16 11:39:44,584 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:39:44,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2022-11-16 11:39:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:44,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:39:44,743 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_607 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_607) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_608 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_608) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)))) is different from false [2022-11-16 11:39:44,779 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_606 (Array Int Int)) (v_ArrVal_608 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem14#1.base| v_ArrVal_606))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_608)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_605 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_606 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_tree_#t~mem14#1.base| v_ArrVal_605) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem14#1.base| v_ArrVal_606) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_607) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)))) is different from false [2022-11-16 11:39:44,800 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_606 (Array Int Int)) (v_ArrVal_608 (Array Int Int))) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_606))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_608)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_605 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_606 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_605) (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_606) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_607) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse2) 0)))) is different from false [2022-11-16 11:39:45,015 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_603 (Array Int Int)) (v_ArrVal_605 (Array Int Int)) (v_ArrVal_604 (Array Int Int)) (v_ArrVal_607 (Array Int Int)) (v_ArrVal_606 (Array Int Int))) (= (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_604))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (store (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_603) .cse1 v_ArrVal_605) (select (select (store .cse2 .cse1 v_ArrVal_606) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_607))) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_604 (Array Int Int)) (v_ArrVal_606 (Array Int Int)) (v_ArrVal_608 (Array Int Int))) (= (select (select (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_604))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_606)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_608)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse3) 0)))) is different from false [2022-11-16 11:39:48,843 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:39:48,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 226 treesize of output 111 [2022-11-16 11:39:48,949 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:39:48,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1231184 treesize of output 982190 [2022-11-16 11:40:52,697 WARN L233 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 486 DAG size of output: 459 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:40:55,511 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:40:55,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 721430 treesize of output 687626 [2022-11-16 11:40:58,435 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:40:58,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 687626 treesize of output 612538 [2022-11-16 11:41:01,376 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:41:01,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 612538 treesize of output 559166 [2022-11-16 11:41:04,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 559166 treesize of output 557118 [2022-11-16 11:42:48,704 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:43:10,670 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:43:19,149 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:43:40,092 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:44:04,946 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:45:10,114 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:45:34,271 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:45:44,207 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:46:06,677 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:46:35,596 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:46:55,732 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:47:04,491 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:47:13,224 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:47:26,102 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:47:35,046 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:47:47,365 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:49:16,973 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:49:36,592 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:50:41,877 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:51:10,215 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:51:30,145 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:51:53,981 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 11:52:36,924 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 293 DAG size of output: 293 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)