./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 --- 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-38b53e6 [2022-11-25 23:16:59,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:16:59,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:16:59,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:16:59,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:16:59,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:16:59,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:16:59,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:16:59,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:16:59,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:16:59,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:16:59,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:16:59,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:16:59,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:16:59,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:16:59,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:16:59,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:16:59,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:16:59,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:16:59,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:16:59,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:16:59,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:16:59,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:16:59,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:16:59,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:16:59,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:16:59,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:16:59,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:16:59,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:16:59,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:16:59,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:16:59,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:16:59,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:16:59,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:16:59,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:16:59,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:16:59,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:16:59,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:16:59,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:16:59,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:16:59,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:16:59,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2022-11-25 23:16:59,237 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:16:59,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:16:59,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:16:59,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:16:59,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:16:59,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:16:59,239 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:16:59,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:16:59,240 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:16:59,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:16:59,241 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:16:59,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:16:59,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:16:59,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:16:59,242 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:16:59,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:16:59,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:16:59,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:16:59,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 23:16:59,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 23:16:59,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:16:59,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:16:59,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:16:59,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:16:59,245 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 23:16:59,245 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 23:16:59,245 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 23:16:59,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:16:59,246 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:16:59,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:16:59,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:16:59,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:16:59,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:16:59,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:16:59,247 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:16:59,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:16:59,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:16:59,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:16:59,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:16:59,248 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_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 [2022-11-25 23:16:59,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:16:59,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:16:59,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:16:59,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:16:59,623 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:16:59,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2022-11-25 23:17:02,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:17:03,099 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:17:03,100 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2022-11-25 23:17:03,106 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/data/3b141761b/ae418c37543541c5b52ebf0279efce74/FLAG5ad2574bb [2022-11-25 23:17:03,122 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/data/3b141761b/ae418c37543541c5b52ebf0279efce74 [2022-11-25 23:17:03,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:17:03,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:17:03,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:17:03,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:17:03,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:17:03,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4666c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03, skipping insertion in model container [2022-11-25 23:17:03,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:17:03,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:17:03,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:17:03,317 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:17:03,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:17:03,345 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:17:03,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03 WrapperNode [2022-11-25 23:17:03,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:17:03,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:17:03,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:17:03,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:17:03,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,383 INFO L138 Inliner]: procedures = 7, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2022-11-25 23:17:03,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:17:03,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:17:03,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:17:03,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:17:03,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,406 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:17:03,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:17:03,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:17:03,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:17:03,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (1/1) ... [2022-11-25 23:17:03,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:17:03,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:17:03,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:17:03,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:17:03,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:17:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:17:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:17:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:17:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:17:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:17:03,618 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:17:03,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:17:04,070 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:17:04,091 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:17:04,091 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:17:04,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:04 BoogieIcfgContainer [2022-11-25 23:17:04,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:17:04,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:17:04,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:17:04,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:17:04,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:17:03" (1/3) ... [2022-11-25 23:17:04,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357ccaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:17:04, skipping insertion in model container [2022-11-25 23:17:04,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:03" (2/3) ... [2022-11-25 23:17:04,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357ccaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:17:04, skipping insertion in model container [2022-11-25 23:17:04,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:04" (3/3) ... [2022-11-25 23:17:04,131 INFO L112 eAbstractionObserver]: Analyzing ICFG 4BitCounterPointer.c [2022-11-25 23:17:04,179 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:17:04,179 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2022-11-25 23:17:04,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:17:04,275 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;@31e27984, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:17:04,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-25 23:17:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 53 states have internal predecessors, (58), 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) [2022-11-25 23:17:04,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-25 23:17:04,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:04,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-25 23:17:04,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash 3476, now seen corresponding path program 1 times [2022-11-25 23:17:04,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:04,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937068609] [2022-11-25 23:17:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:04,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:04,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937068609] [2022-11-25 23:17:04,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937068609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:04,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:04,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:04,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137260194] [2022-11-25 23:17:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:04,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:04,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:04,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:04,886 INFO L87 Difference]: Start difference. First operand has 54 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-25 23:17:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:05,013 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-11-25 23:17:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:05,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-25 23:17:05,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:05,027 INFO L225 Difference]: With dead ends: 50 [2022-11-25 23:17:05,027 INFO L226 Difference]: Without dead ends: 49 [2022-11-25 23:17:05,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,034 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:05,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 20 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:17:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-25 23:17:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-25 23:17:05,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 48 states have internal predecessors, (52), 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) [2022-11-25 23:17:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-11-25 23:17:05,080 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 2 [2022-11-25 23:17:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:05,081 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-11-25 23:17:05,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-25 23:17:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-11-25 23:17:05,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-25 23:17:05,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:05,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-25 23:17:05,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:17:05,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:05,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:05,089 INFO L85 PathProgramCache]: Analyzing trace with hash 3477, now seen corresponding path program 1 times [2022-11-25 23:17:05,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:05,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587555446] [2022-11-25 23:17:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:05,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:05,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:05,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587555446] [2022-11-25 23:17:05,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587555446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:05,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:05,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:05,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688967275] [2022-11-25 23:17:05,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:05,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:05,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:05,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:05,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,319 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-25 23:17:05,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:05,380 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-11-25 23:17:05,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:05,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-25 23:17:05,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:05,382 INFO L225 Difference]: With dead ends: 45 [2022-11-25 23:17:05,382 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 23:17:05,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,384 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:05,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 21 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:17:05,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 23:17:05,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-25 23:17:05,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 44 states have internal predecessors, (48), 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) [2022-11-25 23:17:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-11-25 23:17:05,392 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 2 [2022-11-25 23:17:05,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:05,392 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-11-25 23:17:05,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-25 23:17:05,393 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-11-25 23:17:05,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:17:05,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:05,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:17:05,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:17:05,394 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:05,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:05,395 INFO L85 PathProgramCache]: Analyzing trace with hash 107732, now seen corresponding path program 1 times [2022-11-25 23:17:05,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:05,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707075427] [2022-11-25 23:17:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:05,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:05,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:05,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707075427] [2022-11-25 23:17:05,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707075427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:05,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:05,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:05,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017111235] [2022-11-25 23:17:05,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:05,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:05,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:05,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:05,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,573 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:05,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:05,634 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-11-25 23:17:05,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:05,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-25 23:17:05,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:05,636 INFO L225 Difference]: With dead ends: 41 [2022-11-25 23:17:05,636 INFO L226 Difference]: Without dead ends: 41 [2022-11-25 23:17:05,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,638 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:05,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 16 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:17:05,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-25 23:17:05,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-25 23:17:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 22 states have (on average 2.0) internal successors, (44), 40 states have internal predecessors, (44), 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) [2022-11-25 23:17:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2022-11-25 23:17:05,644 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 3 [2022-11-25 23:17:05,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:05,644 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2022-11-25 23:17:05,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-11-25 23:17:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:17:05,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:05,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:17:05,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:17:05,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:05,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:05,647 INFO L85 PathProgramCache]: Analyzing trace with hash 107733, now seen corresponding path program 1 times [2022-11-25 23:17:05,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:05,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607663040] [2022-11-25 23:17:05,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:05,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:05,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:05,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:05,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607663040] [2022-11-25 23:17:05,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607663040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:05,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:05,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:05,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306340727] [2022-11-25 23:17:05,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:05,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:05,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:05,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:05,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,774 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:05,821 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-25 23:17:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:05,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-25 23:17:05,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:05,822 INFO L225 Difference]: With dead ends: 37 [2022-11-25 23:17:05,822 INFO L226 Difference]: Without dead ends: 37 [2022-11-25 23:17:05,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,824 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:05,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 17 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:05,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-25 23:17:05,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-25 23:17:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 36 states have internal predecessors, (40), 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) [2022-11-25 23:17:05,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-11-25 23:17:05,829 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 3 [2022-11-25 23:17:05,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:05,830 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-11-25 23:17:05,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-11-25 23:17:05,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:17:05,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:05,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:17:05,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:17:05,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 3339671, now seen corresponding path program 1 times [2022-11-25 23:17:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:05,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048930994] [2022-11-25 23:17:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:05,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:05,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:05,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048930994] [2022-11-25 23:17:05,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048930994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:05,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:05,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:05,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262263203] [2022-11-25 23:17:05,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:05,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:05,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:05,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:05,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,898 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:17:05,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:05,975 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-25 23:17:05,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:05,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-25 23:17:05,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:05,978 INFO L225 Difference]: With dead ends: 33 [2022-11-25 23:17:05,980 INFO L226 Difference]: Without dead ends: 33 [2022-11-25 23:17:05,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:05,982 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:05,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:17:05,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-25 23:17:05,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-25 23:17:05,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 32 states have internal predecessors, (36), 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) [2022-11-25 23:17:05,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-25 23:17:05,996 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 4 [2022-11-25 23:17:05,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:05,996 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-25 23:17:05,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:17:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-25 23:17:05,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:17:05,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:05,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:17:05,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:17:06,000 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:06,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:06,001 INFO L85 PathProgramCache]: Analyzing trace with hash 3339672, now seen corresponding path program 1 times [2022-11-25 23:17:06,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:06,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530428138] [2022-11-25 23:17:06,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:06,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:06,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:06,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530428138] [2022-11-25 23:17:06,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530428138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:06,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:06,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:06,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098748150] [2022-11-25 23:17:06,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:06,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:06,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:06,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:06,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:06,164 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:17:06,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:06,215 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-25 23:17:06,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:06,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-25 23:17:06,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:06,218 INFO L225 Difference]: With dead ends: 29 [2022-11-25 23:17:06,218 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 23:17:06,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:06,219 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:06,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:06,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 23:17:06,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-25 23:17:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 28 states have internal predecessors, (32), 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) [2022-11-25 23:17:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-25 23:17:06,230 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 4 [2022-11-25 23:17:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:06,231 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-25 23:17:06,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-25 23:17:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-25 23:17:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:17:06,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:06,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:17:06,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:17:06,233 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:06,235 INFO L85 PathProgramCache]: Analyzing trace with hash 103529783, now seen corresponding path program 1 times [2022-11-25 23:17:06,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:06,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476588946] [2022-11-25 23:17:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:06,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:06,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:06,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476588946] [2022-11-25 23:17:06,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476588946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:06,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:06,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:06,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499947497] [2022-11-25 23:17:06,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:06,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:06,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:06,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:06,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:06,344 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:06,388 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-25 23:17:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:06,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 23:17:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:06,393 INFO L225 Difference]: With dead ends: 26 [2022-11-25 23:17:06,393 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 23:17:06,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:06,396 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:06,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 23:17:06,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-25 23:17:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 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) [2022-11-25 23:17:06,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-25 23:17:06,415 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 5 [2022-11-25 23:17:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:06,415 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-25 23:17:06,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,416 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-25 23:17:06,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:17:06,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:06,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:17:06,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:17:06,418 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:06,418 INFO L85 PathProgramCache]: Analyzing trace with hash 103529784, now seen corresponding path program 1 times [2022-11-25 23:17:06,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:06,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835003776] [2022-11-25 23:17:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:06,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:06,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:06,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835003776] [2022-11-25 23:17:06,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835003776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:06,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:06,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:17:06,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332563484] [2022-11-25 23:17:06,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:06,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:17:06,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:06,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:17:06,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:06,512 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:06,546 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-25 23:17:06,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:17:06,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 23:17:06,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:06,548 INFO L225 Difference]: With dead ends: 23 [2022-11-25 23:17:06,548 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 23:17:06,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:17:06,552 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:06,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:17:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 23:17:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-25 23:17:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2022-11-25 23:17:06,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-25 23:17:06,564 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 5 [2022-11-25 23:17:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:06,564 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-25 23:17:06,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,572 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-25 23:17:06,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:17:06,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:06,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:17:06,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:17:06,573 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1661417693, now seen corresponding path program 1 times [2022-11-25 23:17:06,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:06,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728901465] [2022-11-25 23:17:06,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:06,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:06,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:06,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728901465] [2022-11-25 23:17:06,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728901465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:06,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:17:06,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:17:06,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381179451] [2022-11-25 23:17:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:06,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:17:06,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:06,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:17:06,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:17:06,688 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:06,768 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-25 23:17:06,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:17:06,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:17:06,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:06,770 INFO L225 Difference]: With dead ends: 38 [2022-11-25 23:17:06,770 INFO L226 Difference]: Without dead ends: 38 [2022-11-25 23:17:06,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:17:06,771 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:06,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:17:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-25 23:17:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2022-11-25 23:17:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 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) [2022-11-25 23:17:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-25 23:17:06,774 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2022-11-25 23:17:06,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:06,775 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-25 23:17:06,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-25 23:17:06,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:17:06,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:06,776 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:17:06,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:17:06,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:06,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:06,777 INFO L85 PathProgramCache]: Analyzing trace with hash -723063482, now seen corresponding path program 1 times [2022-11-25 23:17:06,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:06,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651486741] [2022-11-25 23:17:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:06,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:07,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:07,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651486741] [2022-11-25 23:17:07,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651486741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:17:07,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273179790] [2022-11-25 23:17:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:07,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:17:07,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:17:07,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:17:07,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:17:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:07,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 23:17:07,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:17:07,331 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 18 treesize of output 16 [2022-11-25 23:17:07,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:17:07,441 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 14 treesize of output 16 [2022-11-25 23:17:07,461 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 15 treesize of output 7 [2022-11-25 23:17:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:07,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:17:07,551 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:17:07,552 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 1 case distinctions, treesize of input 18 treesize of output 19 [2022-11-25 23:17:07,556 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 30 treesize of output 22 [2022-11-25 23:17:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:07,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273179790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:17:07,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1955778865] [2022-11-25 23:17:07,599 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-25 23:17:07,599 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:17:07,604 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:17:07,610 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:17:07,610 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:17:07,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-25 23:17:07,756 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 11 treesize of output 7 [2022-11-25 23:17:07,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,816 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 19 treesize of output 18 [2022-11-25 23:17:07,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:17:07,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:07,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-25 23:17:08,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:08,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:08,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:08,932 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:17:16,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1955778865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:16,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:17:16,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 5, 5] total 15 [2022-11-25 23:17:16,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648912698] [2022-11-25 23:17:16,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:16,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 23:17:16,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 23:17:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=165, Unknown=3, NotChecked=0, Total=240 [2022-11-25 23:17:16,721 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:17:18,795 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2022-11-25 23:17:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:17:18,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 23:17:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:17:18,801 INFO L225 Difference]: With dead ends: 75 [2022-11-25 23:17:18,801 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 23:17:18,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=100, Invalid=203, Unknown=3, NotChecked=0, Total=306 [2022-11-25 23:17:18,802 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 69 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:17:18,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 63 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:17:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 23:17:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 32. [2022-11-25 23:17:18,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 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) [2022-11-25 23:17:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-11-25 23:17:18,805 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 14 [2022-11-25 23:17:18,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:17:18,805 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-11-25 23:17:18,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:17:18,805 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-11-25 23:17:18,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 23:17:18,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:18,806 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:17:18,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:17:19,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:17:19,011 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:17:19,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:19,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1385146651, now seen corresponding path program 1 times [2022-11-25 23:17:19,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:19,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410071066] [2022-11-25 23:17:19,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:19,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:19,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:19,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410071066] [2022-11-25 23:17:19,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410071066] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:17:19,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581676385] [2022-11-25 23:17:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:19,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:17:19,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:17:19,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:17:19,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:17:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:19,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-25 23:17:19,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:17:19,793 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 34 treesize of output 32 [2022-11-25 23:17:19,871 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 11 treesize of output 7 [2022-11-25 23:17:20,003 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:17:20,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-11-25 23:17:20,057 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 14 treesize of output 16 [2022-11-25 23:17:20,085 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 15 treesize of output 7 [2022-11-25 23:17:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:20,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:17:26,391 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 129 treesize of output 117 [2022-11-25 23:17:26,402 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 90 treesize of output 86 [2022-11-25 23:17:26,408 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 86 treesize of output 78 [2022-11-25 23:17:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:17:26,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581676385] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:17:26,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [10133433] [2022-11-25 23:17:26,533 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-25 23:17:26,533 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:17:26,533 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:17:26,534 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:17:26,534 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:17:26,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-25 23:17:26,628 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 11 treesize of output 7 [2022-11-25 23:17:26,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,671 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 19 treesize of output 18 [2022-11-25 23:17:26,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:17:26,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-25 23:17:26,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:26,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:27,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:27,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:27,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:27,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:28,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:28,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:28,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:28,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:28,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:28,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:29,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:29,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:29,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:29,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:17:29,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:17:29,889 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-25 23:17:29,890 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 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-25 23:17:30,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:17:30,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:17:30,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:17:30,106 INFO L321 Elim1Store]: treesize reduction 68, result has 42.4 percent of original size [2022-11-25 23:17:30,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 296 [2022-11-25 23:17:30,271 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:17:36,536 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1071#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_main_#t~malloc0#1.base_7| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc0#1.base_7|) 0) (<= 0 |v_ULTIMATE.start_main_#t~malloc0#1.base_7|))))' at error location [2022-11-25 23:17:36,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:17:36,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:17:36,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2022-11-25 23:17:36,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019388433] [2022-11-25 23:17:36,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:17:36,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 23:17:36,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:36,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 23:17:36,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1171, Unknown=17, NotChecked=0, Total=1406 [2022-11-25 23:17:36,538 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 22 states have internal predecessors, (59), 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) [2022-11-25 23:17:39,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:17:41,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:17:43,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:17:45,538 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_main_~x0~0#1.base| |c_ULTIMATE.start_main_~x3~0#1.base|)) (.cse1 (not (= |c_ULTIMATE.start_main_~x3~0#1.base| |c_ULTIMATE.start_main_~x1~0#1.base|)))) (and (or (not .cse0) (= |c_ULTIMATE.start_main_~x0~0#1.offset| |c_ULTIMATE.start_main_~x3~0#1.offset|)) (forall ((v_ArrVal_296 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_296) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) .cse1 (= |c_ULTIMATE.start_main_~x0~0#1.offset| 0) (= |c_ULTIMATE.start_main_~x3~0#1.offset| 0) (or .cse0 (and .cse1 (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0))) (forall ((v_ArrVal_296 (Array Int Int)) (v_ArrVal_295 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_296) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)))) is different from false [2022-11-25 23:17:47,617 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_main_~x0~0#1.base| |c_ULTIMATE.start_main_~x3~0#1.base|)) (.cse1 (not (= |c_ULTIMATE.start_main_~x3~0#1.base| |c_ULTIMATE.start_main_~x1~0#1.base|)))) (and (or (not .cse0) (= |c_ULTIMATE.start_main_~x0~0#1.offset| |c_ULTIMATE.start_main_~x3~0#1.offset|)) .cse1 (= |c_ULTIMATE.start_main_~x0~0#1.offset| 0) (= |c_ULTIMATE.start_main_~x3~0#1.offset| 0) (or .cse0 (and .cse1 (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0))) (forall ((v_ArrVal_296 (Array Int Int)) (v_ArrVal_295 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x0~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_296) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)))) is different from false [2022-11-25 23:17:49,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:17:51,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:17:53,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:17:58,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:00,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:02,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:04,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:06,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:08,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:10,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:12,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:14,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:16,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:18,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:20,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:22,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:24,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:26,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:28,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:30,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:32,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:18:32,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:32,807 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2022-11-25 23:18:32,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 23:18:32,808 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 22 states have internal predecessors, (59), 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 [2022-11-25 23:18:32,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:32,809 INFO L225 Difference]: With dead ends: 96 [2022-11-25 23:18:32,810 INFO L226 Difference]: Without dead ends: 96 [2022-11-25 23:18:32,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=476, Invalid=2269, Unknown=19, NotChecked=206, Total=2970 [2022-11-25 23:18:32,811 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 113 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 57 mSolverCounterUnsat, 94 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 94 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 49.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:32,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 151 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 266 Invalid, 94 Unknown, 3 Unchecked, 49.3s Time] [2022-11-25 23:18:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-25 23:18:32,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 62. [2022-11-25 23:18:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 61 states have internal predecessors, (75), 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) [2022-11-25 23:18:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2022-11-25 23:18:32,818 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 22 [2022-11-25 23:18:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:32,819 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2022-11-25 23:18:32,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 22 states have internal predecessors, (59), 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) [2022-11-25 23:18:32,819 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2022-11-25 23:18:32,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:18:32,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:32,820 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:18:32,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:18:33,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 23:18:33,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:18:33,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:33,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1435305227, now seen corresponding path program 1 times [2022-11-25 23:18:33,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:33,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282075511] [2022-11-25 23:18:33,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:33,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:33,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:33,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282075511] [2022-11-25 23:18:33,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282075511] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:18:33,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126384553] [2022-11-25 23:18:33,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:33,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:18:33,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:18:33,777 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:18:33,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:18:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:33,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-25 23:18:33,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:18:33,923 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 202 treesize of output 198 [2022-11-25 23:18:34,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:18:34,140 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:18:34,140 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 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-25 23:18:34,339 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:18:34,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2022-11-25 23:18:34,418 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-25 23:18:34,419 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 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-25 23:18:34,493 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 14 treesize of output 16 [2022-11-25 23:18:34,527 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 15 treesize of output 7 [2022-11-25 23:18:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:34,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:18:34,580 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_375 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x2~0#1.base| v_ArrVal_375) |c_ULTIMATE.start_main_~x3~0#1.base|) |c_ULTIMATE.start_main_~x3~0#1.offset|) 0)) is different from false [2022-11-25 23:18:35,085 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:18:35,085 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 1 case distinctions, treesize of input 48 treesize of output 40 [2022-11-25 23:18:35,099 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:18:35,100 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 386 treesize of output 382 [2022-11-25 23:18:35,113 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 368 treesize of output 344 [2022-11-25 23:18:35,127 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 368 treesize of output 354 [2022-11-25 23:18:35,240 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 118 treesize of output 114 [2022-11-25 23:18:35,277 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 229 treesize of output 223 [2022-11-25 23:18:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:35,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126384553] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:18:35,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [618647641] [2022-11-25 23:18:35,469 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-25 23:18:35,469 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:18:35,470 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:18:35,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:18:35,470 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:18:35,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-25 23:18:35,547 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 11 treesize of output 7 [2022-11-25 23:18:35,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,587 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 19 treesize of output 18 [2022-11-25 23:18:35,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:18:35,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-25 23:18:35,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:35,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:36,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:36,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:36,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:36,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:37,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:37,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:37,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:37,112 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:18:47,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [618647641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:18:47,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:18:47,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7, 10, 10] total 34 [2022-11-25 23:18:47,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410921253] [2022-11-25 23:18:47,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:18:47,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:18:47,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:47,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:18:47,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=839, Unknown=24, NotChecked=64, Total=1190 [2022-11-25 23:18:47,382 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:51,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:51,670 INFO L93 Difference]: Finished difference Result 119 states and 144 transitions. [2022-11-25 23:18:51,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:18:51,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 23:18:51,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:51,671 INFO L225 Difference]: With dead ends: 119 [2022-11-25 23:18:51,671 INFO L226 Difference]: Without dead ends: 119 [2022-11-25 23:18:51,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=368, Invalid=1018, Unknown=24, NotChecked=72, Total=1482 [2022-11-25 23:18:51,673 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 52 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:51,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 90 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 23:18:51,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-25 23:18:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 70. [2022-11-25 23:18:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 69 states have internal predecessors, (83), 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) [2022-11-25 23:18:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions. [2022-11-25 23:18:51,679 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 83 transitions. Word has length 25 [2022-11-25 23:18:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:51,681 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 83 transitions. [2022-11-25 23:18:51,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:18:51,682 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 83 transitions. [2022-11-25 23:18:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:18:51,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:51,683 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:18:51,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:18:51,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:18:51,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:18:51,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:51,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1769996822, now seen corresponding path program 1 times [2022-11-25 23:18:51,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:51,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475426128] [2022-11-25 23:18:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:51,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:18:52,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:52,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475426128] [2022-11-25 23:18:52,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475426128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:18:52,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933931646] [2022-11-25 23:18:52,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:52,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:18:52,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:18:52,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:18:52,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:18:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:52,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 23:18:52,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:18:52,507 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 11 treesize of output 7 [2022-11-25 23:18:52,565 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:18:52,566 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:18:52,574 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 5 treesize of output 3 [2022-11-25 23:18:52,710 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 20 treesize of output 12 [2022-11-25 23:18:52,735 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 15 treesize of output 7 [2022-11-25 23:18:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:18:52,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:18:52,886 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x1~0#1.base| Int) (v_ArrVal_454 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |ULTIMATE.start_main_~x1~0#1.base| v_ArrVal_454))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~x0~0#1.base|))) (or (= (select .cse0 |c_ULTIMATE.start_main_~x0~0#1.offset|) 0) (= (select (select (store .cse1 |c_ULTIMATE.start_main_~x0~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~x0~0#1.offset| 0)) |ULTIMATE.start_main_~x1~0#1.base|) |c_ULTIMATE.start_main_~x1~0#1.offset|) 0))))) is different from false [2022-11-25 23:18:52,914 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:18:52,914 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 1 case distinctions, treesize of input 56 treesize of output 40 [2022-11-25 23:18:52,919 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 87 treesize of output 81 [2022-11-25 23:18:52,924 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 6 treesize of output 4 [2022-11-25 23:18:52,931 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:18:52,931 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 19 treesize of output 15 [2022-11-25 23:18:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 2 not checked. [2022-11-25 23:18:52,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933931646] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:18:52,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [264954111] [2022-11-25 23:18:52,984 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-25 23:18:52,984 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:18:52,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:18:52,985 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:18:52,985 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:18:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-11-25 23:18:53,068 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 11 treesize of output 7 [2022-11-25 23:18:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,105 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 19 treesize of output 18 [2022-11-25 23:18:53,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:18:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-25 23:18:53,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:53,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:53,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:53,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:54,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:54,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:54,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:54,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:54,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:55,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:55,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:55,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:55,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:55,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:55,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:55,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:56,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:56,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:56,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:56,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:56,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:56,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:56,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:56,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:57,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:57,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:57,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:57,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:57,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:57,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:58,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:58,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:58,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:58,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:58,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:58,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:58,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:59,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:59,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:59,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:59,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:59,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:18:59,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:18:59,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:00,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:00,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:00,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:00,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:00,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:00,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:01,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:01,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:01,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:01,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:01,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:19:01,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-11-25 23:19:01,855 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 11 treesize of output 7 [2022-11-25 23:19:01,877 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 11 treesize of output 7 [2022-11-25 23:19:01,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:19:01,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:19:01,959 INFO L321 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2022-11-25 23:19:01,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2022-11-25 23:19:02,085 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-25 23:19:02,085 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 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-25 23:19:02,208 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 11 treesize of output 7 [2022-11-25 23:19:02,211 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:19:08,828 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1867#(and (<= |ULTIMATE.start_main_~x2~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x1~0#1.base|) (<= |ULTIMATE.start_main_~x1~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x0~0#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_main_~x3~0#1.base|) (<= 0 |ULTIMATE.start_main_~x1~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x3~0#1.offset|) (<= |ULTIMATE.start_main_~x3~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~x2~0#1.base|) (<= 0 |ULTIMATE.start_main_~x0~0#1.base|) (<= |ULTIMATE.start_main_~x0~0#1.offset| 0) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_main_#t~malloc1#1.base_8| Int)) (and (<= 0 |v_ULTIMATE.start_main_#t~malloc1#1.base_8|) (= (select |#valid| |v_ULTIMATE.start_main_#t~malloc1#1.base_8|) 0))) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2022-11-25 23:19:08,828 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:19:08,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:19:08,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 20 [2022-11-25 23:19:08,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073643717] [2022-11-25 23:19:08,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:19:08,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 23:19:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:08,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 23:19:08,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=942, Unknown=1, NotChecked=66, Total=1260 [2022-11-25 23:19:08,831 INFO L87 Difference]: Start difference. First operand 70 states and 83 transitions. Second operand has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 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) [2022-11-25 23:19:09,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:09,379 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2022-11-25 23:19:09,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:19:09,380 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 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 33 [2022-11-25 23:19:09,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:09,382 INFO L225 Difference]: With dead ends: 104 [2022-11-25 23:19:09,382 INFO L226 Difference]: Without dead ends: 104 [2022-11-25 23:19:09,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 64 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=423, Invalid=1472, Unknown=1, NotChecked=84, Total=1980 [2022-11-25 23:19:09,386 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 119 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:09,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 86 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 134 Invalid, 0 Unknown, 36 Unchecked, 0.2s Time] [2022-11-25 23:19:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-25 23:19:09,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2022-11-25 23:19:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.1910112359550562) internal successors, (106), 89 states have internal predecessors, (106), 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) [2022-11-25 23:19:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 106 transitions. [2022-11-25 23:19:09,407 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 106 transitions. Word has length 33 [2022-11-25 23:19:09,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:09,408 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 106 transitions. [2022-11-25 23:19:09,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 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) [2022-11-25 23:19:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 106 transitions. [2022-11-25 23:19:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 23:19:09,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:09,409 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:09,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:09,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:09,611 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-25 23:19:09,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:09,611 INFO L85 PathProgramCache]: Analyzing trace with hash 257505609, now seen corresponding path program 2 times [2022-11-25 23:19:09,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:09,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243775656] [2022-11-25 23:19:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:09,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:10,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:10,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243775656] [2022-11-25 23:19:10,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243775656] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:19:10,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432594922] [2022-11-25 23:19:10,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:19:10,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:10,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:10,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:10,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:19:10,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:19:10,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:19:10,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-25 23:19:10,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:11,496 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~malloc2#1.base_9| Int) (|v_ULTIMATE.start_main_#t~malloc0#1.base_9| Int) (v_ArrVal_538 Int) (|v_ULTIMATE.start_main_#t~malloc3#1.base_9| Int) (v_ArrVal_537 Int) (|v_ULTIMATE.start_main_#t~malloc1#1.base_9| Int)) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_#t~malloc0#1.base_9| 1))) (let ((.cse0 (store .cse1 |v_ULTIMATE.start_main_#t~malloc1#1.base_9| 1))) (and (= (select (store .cse0 |v_ULTIMATE.start_main_#t~malloc2#1.base_9| 1) |v_ULTIMATE.start_main_#t~malloc3#1.base_9|) 0) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_#t~malloc0#1.base_9|) 0) (= (select .cse1 |v_ULTIMATE.start_main_#t~malloc1#1.base_9|) 0) (= (select .cse0 |v_ULTIMATE.start_main_#t~malloc2#1.base_9|) 0) (= |c_#valid| (store (store (store (store (store (store .cse0 |v_ULTIMATE.start_main_#t~malloc2#1.base_9| v_ArrVal_538) |v_ULTIMATE.start_main_#t~malloc3#1.base_9| v_ArrVal_537) |v_ULTIMATE.start_main_#t~malloc0#1.base_9| 0) |v_ULTIMATE.start_main_#t~malloc1#1.base_9| 0) |v_ULTIMATE.start_main_#t~malloc2#1.base_9| 0) |v_ULTIMATE.start_main_#t~malloc3#1.base_9| 0)))))) is different from true [2022-11-25 23:19:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-25 23:19:11,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:11,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432594922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:11,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:19:11,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [14] total 16 [2022-11-25 23:19:11,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638638237] [2022-11-25 23:19:11,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:11,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:19:11,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:11,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:19:11,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=186, Unknown=1, NotChecked=28, Total=272 [2022-11-25 23:19:11,501 INFO L87 Difference]: Start difference. First operand 90 states and 106 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-25 23:19:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:11,545 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2022-11-25 23:19:11,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:19:11,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 38 [2022-11-25 23:19:11,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:11,546 INFO L225 Difference]: With dead ends: 89 [2022-11-25 23:19:11,547 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:19:11,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=186, Unknown=1, NotChecked=28, Total=272 [2022-11-25 23:19:11,548 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:11,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-25 23:19:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:19:11,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:19:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:19:11,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:19:11,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-11-25 23:19:11,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:11,550 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:19:11,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-25 23:19:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:19:11,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:19:11,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 31 remaining) [2022-11-25 23:19:11,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 31 remaining) [2022-11-25 23:19:11,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 31 remaining) [2022-11-25 23:19:11,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 31 remaining) [2022-11-25 23:19:11,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 31 remaining) [2022-11-25 23:19:11,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 31 remaining) [2022-11-25 23:19:11,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 31 remaining) [2022-11-25 23:19:11,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 31 remaining) [2022-11-25 23:19:11,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 31 remaining) [2022-11-25 23:19:11,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 31 remaining) [2022-11-25 23:19:11,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 31 remaining) [2022-11-25 23:19:11,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 31 remaining) [2022-11-25 23:19:11,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 31 remaining) [2022-11-25 23:19:11,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 31 remaining) [2022-11-25 23:19:11,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 31 remaining) [2022-11-25 23:19:11,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 31 remaining) [2022-11-25 23:19:11,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 31 remaining) [2022-11-25 23:19:11,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 31 remaining) [2022-11-25 23:19:11,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 31 remaining) [2022-11-25 23:19:11,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 31 remaining) [2022-11-25 23:19:11,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 31 remaining) [2022-11-25 23:19:11,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 31 remaining) [2022-11-25 23:19:11,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 31 remaining) [2022-11-25 23:19:11,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 31 remaining) [2022-11-25 23:19:11,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 31 remaining) [2022-11-25 23:19:11,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 31 remaining) [2022-11-25 23:19:11,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 31 remaining) [2022-11-25 23:19:11,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 31 remaining) [2022-11-25 23:19:11,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 31 remaining) [2022-11-25 23:19:11,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 31 remaining) [2022-11-25 23:19:11,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (0 of 31 remaining) [2022-11-25 23:19:11,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:11,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 23:19:11,766 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:11,768 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:19:11,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:19:11 BoogieIcfgContainer [2022-11-25 23:19:11,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:19:11,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:19:11,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:19:11,772 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:19:11,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:04" (3/4) ... [2022-11-25 23:19:11,775 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:19:11,783 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-25 23:19:11,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 23:19:11,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 23:19:11,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:19:11,821 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:19:11,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:19:11,822 INFO L158 Benchmark]: Toolchain (without parser) took 128695.76ms. Allocated memory was 117.4MB in the beginning and 314.6MB in the end (delta: 197.1MB). Free memory was 73.7MB in the beginning and 148.5MB in the end (delta: -74.9MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. [2022-11-25 23:19:11,822 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:11,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.61ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 63.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:19:11,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.45ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 62.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:11,823 INFO L158 Benchmark]: Boogie Preprocessor took 24.76ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 61.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:11,824 INFO L158 Benchmark]: RCFGBuilder took 684.91ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 60.8MB in the beginning and 109.7MB in the end (delta: -48.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-25 23:19:11,832 INFO L158 Benchmark]: TraceAbstraction took 127674.23ms. Allocated memory was 148.9MB in the beginning and 314.6MB in the end (delta: 165.7MB). Free memory was 109.1MB in the beginning and 150.6MB in the end (delta: -41.6MB). Peak memory consumption was 123.4MB. Max. memory is 16.1GB. [2022-11-25 23:19:11,833 INFO L158 Benchmark]: Witness Printer took 49.58ms. Allocated memory is still 314.6MB. Free memory was 150.6MB in the beginning and 148.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:11,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.61ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 63.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.45ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 62.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.76ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 61.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 684.91ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 60.8MB in the beginning and 109.7MB in the end (delta: -48.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * TraceAbstraction took 127674.23ms. Allocated memory was 148.9MB in the beginning and 314.6MB in the end (delta: 165.7MB). Free memory was 109.1MB in the beginning and 150.6MB in the end (delta: -41.6MB). Peak memory consumption was 123.4MB. Max. memory is 16.1GB. * Witness Printer took 49.58ms. Allocated memory is still 314.6MB. Free memory was 150.6MB in the beginning and 148.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 127.5s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 64.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 mSolverCounterUnknown, 646 SdHoareTripleChecker+Valid, 51.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 646 mSDsluCounter, 551 SdHoareTripleChecker+Invalid, 51.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 63 IncrementalHoareTripleChecker+Unchecked, 366 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1000 IncrementalHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 185 mSDtfsCounter, 1000 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 414 GetRequests, 226 SyntacticMatches, 13 SemanticMatches, 175 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2286 ImplicationChecksByTransitivity, 51.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=13, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 301 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 372 ConstructedInterpolants, 69 QuantifiedInterpolants, 6538 SizeOfPredicates, 53 NumberOfNonLiveVariables, 937 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 23 InterpolantComputations, 10 PerfectInterpolantSequences, 97/189 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 3.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 28, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 69, TOOLS_POST_TIME: 2.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 51, TOOLS_QUANTIFIERELIM_TIME: 2.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 110, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 28, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 1.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 609, DAG_COMPRESSION_RETAINED_NODES: 110, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 23:19:11,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f24b7a7-5190-47c5-a067-2d07ae8c37dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE