./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/20051113-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/20051113-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:47:33,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:47:33,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:47:33,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:47:33,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:47:33,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:47:33,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:47:33,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:47:33,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:47:33,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:47:33,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:47:33,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:47:33,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:47:33,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:47:33,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:47:33,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:47:33,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:47:33,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:47:33,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:47:33,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:47:33,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:47:33,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:47:33,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:47:33,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:47:33,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:47:33,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:47:33,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:47:33,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:47:33,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:47:33,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:47:33,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:47:33,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:47:33,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:47:33,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:47:33,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:47:33,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:47:33,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:47:33,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:47:33,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:47:33,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:47:33,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:47:33,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 18:47:33,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:47:33,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:47:33,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:47:33,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:47:33,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:47:33,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:47:33,382 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:47:33,382 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:47:33,382 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:47:33,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:47:33,384 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:47:33,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:47:33,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:47:33,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:47:33,385 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:47:33,385 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:47:33,385 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:47:33,385 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:47:33,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 18:47:33,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 18:47:33,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:47:33,387 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:47:33,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 18:47:33,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:47:33,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:47:33,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:47:33,389 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 18:47:33,389 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 18:47:33,390 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 18:47:33,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:47:33,390 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 18:47:33,390 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:47:33,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:47:33,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:47:33,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:47:33,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:47:33,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:47:33,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:47:33,392 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:47:33,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:47:33,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:47:33,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:47:33,393 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 [2021-11-25 18:47:33,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:47:33,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:47:33,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:47:33,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:47:33,682 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:47:33,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/memsafety/20051113-1.i [2021-11-25 18:47:33,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/data/6156dabc2/9c1d0d914266467aa5546eb3c875f57f/FLAG1df870361 [2021-11-25 18:47:34,347 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:47:34,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/sv-benchmarks/c/memsafety/20051113-1.i [2021-11-25 18:47:34,363 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/data/6156dabc2/9c1d0d914266467aa5546eb3c875f57f/FLAG1df870361 [2021-11-25 18:47:34,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/data/6156dabc2/9c1d0d914266467aa5546eb3c875f57f [2021-11-25 18:47:34,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:47:34,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:47:34,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:47:34,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:47:34,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:47:34,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:47:34" (1/1) ... [2021-11-25 18:47:34,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51792431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:34, skipping insertion in model container [2021-11-25 18:47:34,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:47:34" (1/1) ... [2021-11-25 18:47:34,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:47:34,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:47:35,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:47:35,050 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:47:35,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:47:35,120 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:47:35,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35 WrapperNode [2021-11-25 18:47:35,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:47:35,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:47:35,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:47:35,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:47:35,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,167 INFO L137 Inliner]: procedures = 125, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2021-11-25 18:47:35,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:47:35,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:47:35,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:47:35,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:47:35,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:47:35,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:47:35,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:47:35,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:47:35,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (1/1) ... [2021-11-25 18:47:35,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:47:35,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:35,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:47:35,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:47:35,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:47:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:47:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:47:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:47:35,291 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_abort [2021-11-25 18:47:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_abort [2021-11-25 18:47:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:47:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:47:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:47:35,383 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:47:35,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:47:35,652 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:47:35,710 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:47:35,710 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 18:47:35,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:47:35 BoogieIcfgContainer [2021-11-25 18:47:35,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:47:35,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:47:35,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:47:35,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:47:35,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:47:34" (1/3) ... [2021-11-25 18:47:35,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5a65fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:47:35, skipping insertion in model container [2021-11-25 18:47:35,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:47:35" (2/3) ... [2021-11-25 18:47:35,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5a65fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:47:35, skipping insertion in model container [2021-11-25 18:47:35,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:47:35" (3/3) ... [2021-11-25 18:47:35,722 INFO L111 eAbstractionObserver]: Analyzing ICFG 20051113-1.i [2021-11-25 18:47:35,728 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:47:35,728 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-11-25 18:47:35,775 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:47:35,783 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:47:35,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-11-25 18:47:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 25 states have (on average 2.28) internal successors, (57), 52 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 18:47:35,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:35,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 18:47:35,806 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:35,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:35,812 INFO L85 PathProgramCache]: Analyzing trace with hash 4468, now seen corresponding path program 1 times [2021-11-25 18:47:35,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:35,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145817840] [2021-11-25 18:47:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:35,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:35,982 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:35,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145817840] [2021-11-25 18:47:35,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145817840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:35,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:35,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:47:35,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122171313] [2021-11-25 18:47:35,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:35,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:47:35,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:36,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:47:36,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:47:36,046 INFO L87 Difference]: Start difference. First operand has 54 states, 25 states have (on average 2.28) internal successors, (57), 52 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) 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) [2021-11-25 18:47:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:36,167 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2021-11-25 18:47:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:47:36,173 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 [2021-11-25 18:47:36,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:36,181 INFO L225 Difference]: With dead ends: 53 [2021-11-25 18:47:36,181 INFO L226 Difference]: Without dead ends: 52 [2021-11-25 18:47:36,183 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:47:36,189 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 52 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:36,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 27 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:36,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-25 18:47:36,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-25 18:47:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 25 states have (on average 2.12) internal successors, (53), 50 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2021-11-25 18:47:36,239 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 2 [2021-11-25 18:47:36,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:36,240 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2021-11-25 18:47:36,240 INFO L471 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) [2021-11-25 18:47:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2021-11-25 18:47:36,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 18:47:36,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:36,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 18:47:36,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:47:36,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:36,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:36,246 INFO L85 PathProgramCache]: Analyzing trace with hash 138545, now seen corresponding path program 1 times [2021-11-25 18:47:36,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:36,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318274036] [2021-11-25 18:47:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:36,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:36,357 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:36,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318274036] [2021-11-25 18:47:36,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318274036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:36,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:36,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:47:36,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401536739] [2021-11-25 18:47:36,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:36,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:47:36,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:36,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:47:36,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:47:36,364 INFO L87 Difference]: Start difference. First operand 52 states and 57 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) [2021-11-25 18:47:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:36,430 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2021-11-25 18:47:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:47:36,431 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 [2021-11-25 18:47:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:36,432 INFO L225 Difference]: With dead ends: 51 [2021-11-25 18:47:36,432 INFO L226 Difference]: Without dead ends: 51 [2021-11-25 18:47:36,433 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:47:36,434 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 49 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:36,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 28 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-25 18:47:36,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-25 18:47:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 25 states have (on average 2.08) internal successors, (52), 49 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2021-11-25 18:47:36,448 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 3 [2021-11-25 18:47:36,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:36,449 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2021-11-25 18:47:36,449 INFO L471 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) [2021-11-25 18:47:36,450 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2021-11-25 18:47:36,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:47:36,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:36,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:47:36,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:47:36,452 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:36,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:36,453 INFO L85 PathProgramCache]: Analyzing trace with hash 133146319, now seen corresponding path program 1 times [2021-11-25 18:47:36,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:36,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550985389] [2021-11-25 18:47:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:36,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:36,564 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:36,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550985389] [2021-11-25 18:47:36,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550985389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:36,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:36,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:47:36,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945408874] [2021-11-25 18:47:36,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:36,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:47:36,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:36,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:47:36,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:36,570 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-11-25 18:47:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:36,662 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2021-11-25 18:47:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:47:36,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 [2021-11-25 18:47:36,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:36,664 INFO L225 Difference]: With dead ends: 44 [2021-11-25 18:47:36,664 INFO L226 Difference]: Without dead ends: 44 [2021-11-25 18:47:36,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:36,667 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 120 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:36,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 21 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:36,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-25 18:47:36,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-25 18:47:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.8) internal successors, (45), 42 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2021-11-25 18:47:36,677 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 5 [2021-11-25 18:47:36,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:36,677 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2021-11-25 18:47:36,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-11-25 18:47:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-11-25 18:47:36,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:47:36,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:36,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:47:36,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:47:36,679 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:36,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:36,679 INFO L85 PathProgramCache]: Analyzing trace with hash 133146320, now seen corresponding path program 1 times [2021-11-25 18:47:36,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:36,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415798112] [2021-11-25 18:47:36,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:36,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:36,872 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:36,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415798112] [2021-11-25 18:47:36,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415798112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:36,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:36,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:47:36,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799748499] [2021-11-25 18:47:36,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:36,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:47:36,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:36,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:47:36,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:36,878 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-11-25 18:47:36,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:36,964 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2021-11-25 18:47:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:47:36,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 [2021-11-25 18:47:36,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:36,966 INFO L225 Difference]: With dead ends: 37 [2021-11-25 18:47:36,966 INFO L226 Difference]: Without dead ends: 37 [2021-11-25 18:47:36,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:47:36,978 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 67 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:36,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 25 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-25 18:47:36,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-11-25 18:47:36,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.52) internal successors, (38), 35 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2021-11-25 18:47:36,984 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 5 [2021-11-25 18:47:36,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:36,984 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2021-11-25 18:47:36,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-11-25 18:47:36,985 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2021-11-25 18:47:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:47:36,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:36,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:36,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:47:36,990 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1417002840, now seen corresponding path program 1 times [2021-11-25 18:47:36,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:36,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294343073] [2021-11-25 18:47:36,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:36,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:37,076 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:37,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294343073] [2021-11-25 18:47:37,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294343073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:37,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:37,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:47:37,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865200028] [2021-11-25 18:47:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:37,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:47:37,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:47:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:47:37,079 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:37,140 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-11-25 18:47:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:47:37,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 18:47:37,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:37,141 INFO L225 Difference]: With dead ends: 35 [2021-11-25 18:47:37,141 INFO L226 Difference]: Without dead ends: 35 [2021-11-25 18:47:37,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:37,143 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 49 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:37,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 20 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-25 18:47:37,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-25 18:47:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.44) internal successors, (36), 33 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-11-25 18:47:37,155 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 12 [2021-11-25 18:47:37,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:37,158 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-11-25 18:47:37,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-11-25 18:47:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:47:37,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:37,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:37,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:47:37,159 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1417002839, now seen corresponding path program 1 times [2021-11-25 18:47:37,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:37,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289593946] [2021-11-25 18:47:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:37,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:37,234 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:37,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289593946] [2021-11-25 18:47:37,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289593946] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:37,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:37,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:47:37,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741588831] [2021-11-25 18:47:37,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:37,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:47:37,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:37,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:47:37,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:47:37,236 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:37,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:37,308 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2021-11-25 18:47:37,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:47:37,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 18:47:37,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:37,313 INFO L225 Difference]: With dead ends: 34 [2021-11-25 18:47:37,313 INFO L226 Difference]: Without dead ends: 34 [2021-11-25 18:47:37,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:37,320 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 44 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:37,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 24 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:47:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-25 18:47:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-25 18:47:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.4) internal successors, (35), 32 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2021-11-25 18:47:37,329 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 12 [2021-11-25 18:47:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:37,329 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2021-11-25 18:47:37,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2021-11-25 18:47:37,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 18:47:37,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:37,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:37,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:47:37,330 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:37,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:37,331 INFO L85 PathProgramCache]: Analyzing trace with hash -235095830, now seen corresponding path program 1 times [2021-11-25 18:47:37,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:37,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976645798] [2021-11-25 18:47:37,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:37,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:37,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:37,407 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:37,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976645798] [2021-11-25 18:47:37,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976645798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:37,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:37,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:47:37,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074526557] [2021-11-25 18:47:37,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:37,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:47:37,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:37,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:47:37,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:47:37,409 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:37,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:37,486 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2021-11-25 18:47:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:47:37,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-25 18:47:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:37,488 INFO L225 Difference]: With dead ends: 54 [2021-11-25 18:47:37,488 INFO L226 Difference]: Without dead ends: 54 [2021-11-25 18:47:37,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:37,489 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 58 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:37,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 34 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:37,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-25 18:47:37,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2021-11-25 18:47:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 35 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-11-25 18:47:37,496 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 14 [2021-11-25 18:47:37,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:37,497 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-11-25 18:47:37,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:37,497 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-11-25 18:47:37,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 18:47:37,498 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:37,498 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:37,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:47:37,498 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:37,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:37,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1353706019, now seen corresponding path program 1 times [2021-11-25 18:47:37,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:37,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72711885] [2021-11-25 18:47:37,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:37,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:37,590 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:37,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72711885] [2021-11-25 18:47:37,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72711885] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:37,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916214981] [2021-11-25 18:47:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:37,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:37,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:37,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:37,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:47:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:37,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 18:47:37,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:37,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:47:38,222 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:47:38,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 17 [2021-11-25 18:47:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:47:38,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916214981] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:47:38,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1296804790] [2021-11-25 18:47:38,328 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-11-25 18:47:38,328 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:47:38,334 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:47:38,340 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:47:38,341 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:47:38,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:38,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:38,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:47:38,440 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:47:38,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1296804790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:38,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:47:38,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 5, 5] total 15 [2021-11-25 18:47:38,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269447922] [2021-11-25 18:47:38,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:38,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:47:38,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:38,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:47:38,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-11-25 18:47:38,649 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:38,761 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2021-11-25 18:47:38,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:47:38,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 18:47:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:38,762 INFO L225 Difference]: With dead ends: 38 [2021-11-25 18:47:38,763 INFO L226 Difference]: Without dead ends: 38 [2021-11-25 18:47:38,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-11-25 18:47:38,764 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:38,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-25 18:47:38,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-25 18:47:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 36 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:38,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2021-11-25 18:47:38,774 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 17 [2021-11-25 18:47:38,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:38,774 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2021-11-25 18:47:38,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2021-11-25 18:47:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 18:47:38,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:38,776 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:38,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:47:38,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-25 18:47:38,990 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:38,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1091892682, now seen corresponding path program 1 times [2021-11-25 18:47:38,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:38,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106654272] [2021-11-25 18:47:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:38,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:39,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:39,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106654272] [2021-11-25 18:47:39,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106654272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:39,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654359960] [2021-11-25 18:47:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:39,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:39,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:39,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:39,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:47:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:39,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 18:47:39,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:39,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:47:39,595 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:47:39,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 17 [2021-11-25 18:47:39,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:39,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654359960] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:47:39,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131596311] [2021-11-25 18:47:39,654 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-11-25 18:47:39,654 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:47:39,654 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:47:39,655 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:47:39,655 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:47:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:39,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:39,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:47:39,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:39,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2021-11-25 18:47:39,892 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:39,925 INFO L354 Elim1Store]: treesize reduction 86, result has 23.2 percent of original size [2021-11-25 18:47:39,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 232 treesize of output 233 [2021-11-25 18:47:40,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:47:40,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:40,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:40,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:47:40,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:47:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:47:40,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:47:40,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:40,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:47:40,678 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:47:42,271 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '995#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (< (select |#length| |ULTIMATE.start_Sum_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum_~i~0#1|) 18 |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 18:47:42,271 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:47:42,271 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:47:42,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 12 [2021-11-25 18:47:42,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100575826] [2021-11-25 18:47:42,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:47:42,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-25 18:47:42,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-25 18:47:42,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-11-25 18:47:42,273 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 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) [2021-11-25 18:47:42,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:42,648 INFO L93 Difference]: Finished difference Result 95 states and 115 transitions. [2021-11-25 18:47:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:47:42,648 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 18:47:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:42,650 INFO L225 Difference]: With dead ends: 95 [2021-11-25 18:47:42,650 INFO L226 Difference]: Without dead ends: 95 [2021-11-25 18:47:42,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2021-11-25 18:47:42,653 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 255 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:42,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 107 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:47:42,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-25 18:47:42,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 44. [2021-11-25 18:47:42,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 42 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2021-11-25 18:47:42,671 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 18 [2021-11-25 18:47:42,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:42,672 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-11-25 18:47:42,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 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) [2021-11-25 18:47:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2021-11-25 18:47:42,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 18:47:42,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:42,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:42,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:47:42,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-25 18:47:42,898 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:42,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1089951143, now seen corresponding path program 1 times [2021-11-25 18:47:42,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:42,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502388067] [2021-11-25 18:47:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:42,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:42,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:42,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:42,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502388067] [2021-11-25 18:47:42,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502388067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:42,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:42,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:47:42,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186019968] [2021-11-25 18:47:42,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:42,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:47:42,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:42,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:47:42,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:42,992 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:43,046 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2021-11-25 18:47:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:47:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 18:47:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:43,049 INFO L225 Difference]: With dead ends: 42 [2021-11-25 18:47:43,049 INFO L226 Difference]: Without dead ends: 42 [2021-11-25 18:47:43,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:47:43,050 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 54 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:43,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 26 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:47:43,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-25 18:47:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-25 18:47:43,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 40 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2021-11-25 18:47:43,065 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 18 [2021-11-25 18:47:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:43,066 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2021-11-25 18:47:43,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2021-11-25 18:47:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 18:47:43,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:43,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:43,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:47:43,068 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:43,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1089951144, now seen corresponding path program 1 times [2021-11-25 18:47:43,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:43,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472566086] [2021-11-25 18:47:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:43,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:43,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:43,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472566086] [2021-11-25 18:47:43,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472566086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:43,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:43,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:47:43,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184772755] [2021-11-25 18:47:43,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:43,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:47:43,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:43,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:47:43,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:47:43,196 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:43,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:43,264 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2021-11-25 18:47:43,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:47:43,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 18:47:43,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:43,266 INFO L225 Difference]: With dead ends: 42 [2021-11-25 18:47:43,266 INFO L226 Difference]: Without dead ends: 42 [2021-11-25 18:47:43,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 18:47:43,268 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:43,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 57 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:47:43,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-25 18:47:43,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-25 18:47:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 40 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:43,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-11-25 18:47:43,275 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 18 [2021-11-25 18:47:43,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:43,275 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-11-25 18:47:43,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-11-25 18:47:43,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 18:47:43,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:43,277 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:43,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:47:43,277 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:43,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1507434207, now seen corresponding path program 1 times [2021-11-25 18:47:43,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:43,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287943616] [2021-11-25 18:47:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:43,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:43,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:43,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287943616] [2021-11-25 18:47:43,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287943616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:43,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13920201] [2021-11-25 18:47:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:43,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:43,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:43,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:43,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:47:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:43,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-25 18:47:43,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:47:43,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:47:43,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13920201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:43,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:47:43,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2021-11-25 18:47:43,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471124386] [2021-11-25 18:47:43,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:43,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:47:43,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:43,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:47:43,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:47:43,593 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-11-25 18:47:43,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:43,660 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2021-11-25 18:47:43,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:47:43,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-25 18:47:43,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:43,661 INFO L225 Difference]: With dead ends: 41 [2021-11-25 18:47:43,661 INFO L226 Difference]: Without dead ends: 41 [2021-11-25 18:47:43,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:47:43,662 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 49 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:43,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 26 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:47:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-25 18:47:43,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-25 18:47:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 39 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:43,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2021-11-25 18:47:43,673 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 21 [2021-11-25 18:47:43,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:43,675 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-11-25 18:47:43,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-11-25 18:47:43,675 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2021-11-25 18:47:43,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 18:47:43,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:43,679 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:43,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:47:43,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:43,904 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:43,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1240293566, now seen corresponding path program 1 times [2021-11-25 18:47:43,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:43,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246419897] [2021-11-25 18:47:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:43,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:43,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:43,998 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:43,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246419897] [2021-11-25 18:47:43,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246419897] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:43,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745757573] [2021-11-25 18:47:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:43,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:43,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:44,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:44,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:47:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:44,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-25 18:47:44,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:47:44,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:47:44,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745757573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:44,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:47:44,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2021-11-25 18:47:44,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841189583] [2021-11-25 18:47:44,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:44,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:47:44,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:44,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:47:44,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:47:44,286 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:44,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:44,410 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2021-11-25 18:47:44,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:47:44,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 18:47:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:44,412 INFO L225 Difference]: With dead ends: 50 [2021-11-25 18:47:44,413 INFO L226 Difference]: Without dead ends: 50 [2021-11-25 18:47:44,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:47:44,414 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 59 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:44,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 38 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:47:44,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-25 18:47:44,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2021-11-25 18:47:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.263157894736842) internal successors, (48), 42 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:44,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2021-11-25 18:47:44,419 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 23 [2021-11-25 18:47:44,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:44,419 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2021-11-25 18:47:44,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:44,420 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2021-11-25 18:47:44,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 18:47:44,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:44,424 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:44,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:47:44,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:44,652 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:44,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:44,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2081679574, now seen corresponding path program 2 times [2021-11-25 18:47:44,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:44,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953809665] [2021-11-25 18:47:44,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:44,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:44,742 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:44,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953809665] [2021-11-25 18:47:44,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953809665] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:44,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169976483] [2021-11-25 18:47:44,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:47:44,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:44,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:44,744 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:44,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:47:44,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 18:47:44,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:47:44,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-25 18:47:44,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:44,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:47:44,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:44,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:44,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:44,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:44,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:44,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:44,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:44,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:44,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:45,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:45,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:45,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:47:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 18:47:45,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:47:45,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 46 [2021-11-25 18:47:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 18:47:45,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169976483] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:47:45,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1453193637] [2021-11-25 18:47:45,746 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-11-25 18:47:45,747 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:47:45,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:47:45,747 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:47:45,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:47:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:47:45,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2021-11-25 18:47:45,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:45,898 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 18:47:45,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 236 [2021-11-25 18:47:45,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:47:45,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:46,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:46,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:47:46,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:47:46,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:47:46,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:47:46,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:46,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:47:46,419 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:47:48,165 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1829#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (< (select |#length| |ULTIMATE.start_Sum_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum_~i~0#1|) 18 |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 18:47:48,165 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:47:48,165 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:47:48,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 20 [2021-11-25 18:47:48,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047670689] [2021-11-25 18:47:48,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:47:48,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 18:47:48,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:48,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 18:47:48,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2021-11-25 18:47:48,168 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 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) [2021-11-25 18:47:48,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:48,742 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2021-11-25 18:47:48,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 18:47:48,743 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 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 24 [2021-11-25 18:47:48,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:48,744 INFO L225 Difference]: With dead ends: 76 [2021-11-25 18:47:48,744 INFO L226 Difference]: Without dead ends: 76 [2021-11-25 18:47:48,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 50 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=299, Invalid=1593, Unknown=0, NotChecked=0, Total=1892 [2021-11-25 18:47:48,746 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 249 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:48,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 138 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 285 Invalid, 0 Unknown, 26 Unchecked, 0.3s Time] [2021-11-25 18:47:48,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-25 18:47:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 42. [2021-11-25 18:47:48,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 40 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-11-25 18:47:48,750 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 24 [2021-11-25 18:47:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:48,750 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-11-25 18:47:48,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 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) [2021-11-25 18:47:48,751 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-11-25 18:47:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 18:47:48,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:48,752 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:48,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 18:47:48,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 18:47:48,963 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash 17046693, now seen corresponding path program 1 times [2021-11-25 18:47:48,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:48,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657396574] [2021-11-25 18:47:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:48,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:47:49,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:49,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657396574] [2021-11-25 18:47:49,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657396574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:47:49,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:47:49,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:47:49,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186786994] [2021-11-25 18:47:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:47:49,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:47:49,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:47:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:47:49,016 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:49,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:49,036 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2021-11-25 18:47:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:47:49,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-25 18:47:49,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:49,039 INFO L225 Difference]: With dead ends: 48 [2021-11-25 18:47:49,039 INFO L226 Difference]: Without dead ends: 48 [2021-11-25 18:47:49,039 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:47:49,040 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:49,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 86 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:47:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-25 18:47:49,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2021-11-25 18:47:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.205128205128205) internal successors, (47), 42 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2021-11-25 18:47:49,044 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 26 [2021-11-25 18:47:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:49,045 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2021-11-25 18:47:49,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:47:49,045 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2021-11-25 18:47:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 18:47:49,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:49,048 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:49,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 18:47:49,048 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:49,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash 19077608, now seen corresponding path program 1 times [2021-11-25 18:47:49,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:49,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387370106] [2021-11-25 18:47:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:49,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 18:47:49,155 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:49,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387370106] [2021-11-25 18:47:49,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387370106] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:49,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078613835] [2021-11-25 18:47:49,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:49,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:49,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:49,157 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:49,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:47:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:49,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-25 18:47:49,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:47:49,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:47:49,633 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:47:49,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 17 [2021-11-25 18:47:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:47:49,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078613835] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:47:49,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [695948910] [2021-11-25 18:47:49,690 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-25 18:47:49,690 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:47:49,690 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:47:49,691 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:47:49,691 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:47:49,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:47:49,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2021-11-25 18:47:49,800 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:49,832 INFO L354 Elim1Store]: treesize reduction 86, result has 23.2 percent of original size [2021-11-25 18:47:49,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 232 treesize of output 233 [2021-11-25 18:47:49,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:47:49,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:49,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:49,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:49,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:47:50,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:47:50,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:47:50,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:47:50,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:50,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:47:50,585 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:47:52,524 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2250#(and (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) |ULTIMATE.start_Sum2_~instrs#1.offset| 26)) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2021-11-25 18:47:52,524 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:47:52,524 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:47:52,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 16 [2021-11-25 18:47:52,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927002256] [2021-11-25 18:47:52,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:47:52,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 18:47:52,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:52,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 18:47:52,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2021-11-25 18:47:52,527 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 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) [2021-11-25 18:47:52,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:52,969 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2021-11-25 18:47:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 18:47:52,969 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 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 26 [2021-11-25 18:47:52,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:52,970 INFO L225 Difference]: With dead ends: 66 [2021-11-25 18:47:52,970 INFO L226 Difference]: Without dead ends: 66 [2021-11-25 18:47:52,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 52 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=239, Invalid=1401, Unknown=0, NotChecked=0, Total=1640 [2021-11-25 18:47:52,972 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 219 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:52,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 82 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:47:52,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-25 18:47:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2021-11-25 18:47:52,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.2) internal successors, (54), 48 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2021-11-25 18:47:52,975 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 26 [2021-11-25 18:47:52,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:52,975 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2021-11-25 18:47:52,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 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) [2021-11-25 18:47:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2021-11-25 18:47:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 18:47:52,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:52,976 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:53,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 18:47:53,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:53,188 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:53,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1427927902, now seen corresponding path program 1 times [2021-11-25 18:47:53,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:53,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962674394] [2021-11-25 18:47:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:53,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:47:53,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:53,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962674394] [2021-11-25 18:47:53,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962674394] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:53,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484709038] [2021-11-25 18:47:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:53,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:53,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:53,296 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:53,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 18:47:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:53,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-25 18:47:53,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:53,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-25 18:47:53,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:53,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:47:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:47:53,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484709038] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:47:53,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [953123034] [2021-11-25 18:47:53,783 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2021-11-25 18:47:53,783 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:47:53,783 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:47:53,783 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:47:53,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:47:53,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:53,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:53,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:47:53,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:53,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2021-11-25 18:47:53,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:53,927 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 18:47:53,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 236 [2021-11-25 18:47:53,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:47:53,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:54,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:54,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:47:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:47:54,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:47:54,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:47:54,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:54,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:47:54,928 INFO L197 IcfgInterpreter]: Interpreting procedure dummy_abort with input of size 27 for LOIs [2021-11-25 18:47:54,935 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:47:57,960 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2606#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|) |ULTIMATE.start_Sum2_~i~1#1|) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (<= |ULTIMATE.start_Sum2_~i~1#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (= (select |#valid| |ULTIMATE.start_Sum2_~instrs#1.base|) 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (<= (+ |ULTIMATE.start_Sum2_~instrs#1.offset| 4) (select |#length| |ULTIMATE.start_Sum2_~instrs#1.base|)) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:47:57,960 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:47:57,960 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:47:57,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 19 [2021-11-25 18:47:57,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570529961] [2021-11-25 18:47:57,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:47:57,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-25 18:47:57,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:47:57,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-25 18:47:57,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1326, Unknown=0, NotChecked=0, Total=1560 [2021-11-25 18:47:57,962 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:47:58,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:47:58,365 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2021-11-25 18:47:58,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 18:47:58,366 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-11-25 18:47:58,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:47:58,367 INFO L225 Difference]: With dead ends: 48 [2021-11-25 18:47:58,367 INFO L226 Difference]: Without dead ends: 48 [2021-11-25 18:47:58,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 64 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=368, Invalid=1888, Unknown=0, NotChecked=0, Total=2256 [2021-11-25 18:47:58,369 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 52 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:47:58,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 115 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:47:58,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-25 18:47:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-25 18:47:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 46 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:47:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-11-25 18:47:58,371 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 32 [2021-11-25 18:47:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:47:58,372 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-11-25 18:47:58,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.8421052631578947) internal successors, (73), 19 states have internal predecessors, (73), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:47:58,372 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-11-25 18:47:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 18:47:58,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:47:58,373 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:47:58,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 18:47:58,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 18:47:58,583 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:47:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:47:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash 629228062, now seen corresponding path program 1 times [2021-11-25 18:47:58,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:47:58,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390135955] [2021-11-25 18:47:58,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:58,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:47:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 18:47:58,693 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:47:58,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390135955] [2021-11-25 18:47:58,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390135955] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:47:58,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497551191] [2021-11-25 18:47:58,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:47:58,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:47:58,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:47:58,695 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:47:58,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 18:47:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:47:58,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-25 18:47:58,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:47:58,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:47:58,840 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 18:47:58,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2021-11-25 18:47:58,870 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-25 18:47:58,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 18:47:59,027 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-25 18:47:59,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 12 [2021-11-25 18:47:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 18:47:59,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:47:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 18:47:59,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497551191] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:47:59,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [209369097] [2021-11-25 18:47:59,288 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-25 18:47:59,288 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:47:59,288 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:47:59,288 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:47:59,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:47:59,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:47:59,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2021-11-25 18:47:59,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:47:59,430 INFO L354 Elim1Store]: treesize reduction 86, result has 23.2 percent of original size [2021-11-25 18:47:59,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 232 treesize of output 233 [2021-11-25 18:47:59,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:47:59,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:47:59,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:47:59,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:47:59,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:47:59,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:47:59,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:47:59,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:47:59,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:48:00,176 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:02,728 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2962#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= 4311811859 |ULTIMATE.start_Sum2_#res#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:02,728 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:02,729 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:48:02,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2021-11-25 18:48:02,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788240417] [2021-11-25 18:48:02,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:02,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-25 18:48:02,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:02,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-25 18:48:02,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2021-11-25 18:48:02,732 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 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) [2021-11-25 18:48:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:03,093 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2021-11-25 18:48:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 18:48:03,093 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 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) Word has length 35 [2021-11-25 18:48:03,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:03,094 INFO L225 Difference]: With dead ends: 54 [2021-11-25 18:48:03,094 INFO L226 Difference]: Without dead ends: 54 [2021-11-25 18:48:03,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 70 SyntacticMatches, 10 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=302, Invalid=2050, Unknown=0, NotChecked=0, Total=2352 [2021-11-25 18:48:03,095 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 59 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:03,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 155 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 226 Invalid, 0 Unknown, 11 Unchecked, 0.1s Time] [2021-11-25 18:48:03,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-25 18:48:03,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2021-11-25 18:48:03,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.1333333333333333) internal successors, (51), 48 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:48:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2021-11-25 18:48:03,099 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 35 [2021-11-25 18:48:03,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:03,099 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2021-11-25 18:48:03,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 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) [2021-11-25 18:48:03,100 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2021-11-25 18:48:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 18:48:03,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:03,100 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:03,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-25 18:48:03,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-25 18:48:03,308 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:48:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:03,308 INFO L85 PathProgramCache]: Analyzing trace with hash 301757704, now seen corresponding path program 2 times [2021-11-25 18:48:03,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:03,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444295438] [2021-11-25 18:48:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:03,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:03,416 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-25 18:48:03,416 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:03,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444295438] [2021-11-25 18:48:03,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444295438] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:48:03,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664703890] [2021-11-25 18:48:03,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:48:03,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:03,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:03,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:03,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 18:48:03,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 18:48:03,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:48:03,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-25 18:48:03,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:03,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:48:03,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-25 18:48:04,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 18 [2021-11-25 18:48:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-25 18:48:04,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:04,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 38 [2021-11-25 18:48:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-25 18:48:04,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664703890] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:04,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2033229495] [2021-11-25 18:48:04,962 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-25 18:48:04,962 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:04,962 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:04,963 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:04,963 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:04,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:04,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:04,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:48:05,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2021-11-25 18:48:05,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,083 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 18:48:05,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 236 [2021-11-25 18:48:05,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:48:05,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:48:05,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:48:05,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:48:05,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:48:05,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:48:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:48:05,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:05,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:48:05,784 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:08,013 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3359#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) |ULTIMATE.start_Sum2_~instrs#1.offset| 26)) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:08,014 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:08,014 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:48:08,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 29 [2021-11-25 18:48:08,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572823088] [2021-11-25 18:48:08,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:08,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 18:48:08,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:08,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 18:48:08,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1879, Unknown=0, NotChecked=0, Total=2070 [2021-11-25 18:48:08,016 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 29 states, 29 states have (on average 3.0344827586206895) internal successors, (88), 29 states have internal predecessors, (88), 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) [2021-11-25 18:48:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:09,244 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2021-11-25 18:48:09,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 18:48:09,244 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.0344827586206895) internal successors, (88), 29 states have internal predecessors, (88), 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 [2021-11-25 18:48:09,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:09,245 INFO L225 Difference]: With dead ends: 52 [2021-11-25 18:48:09,245 INFO L226 Difference]: Without dead ends: 52 [2021-11-25 18:48:09,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=487, Invalid=3053, Unknown=0, NotChecked=0, Total=3540 [2021-11-25 18:48:09,247 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 110 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:09,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 87 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:48:09,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-25 18:48:09,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2021-11-25 18:48:09,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:48:09,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-11-25 18:48:09,251 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 38 [2021-11-25 18:48:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:09,251 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-11-25 18:48:09,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.0344827586206895) internal successors, (88), 29 states have internal predecessors, (88), 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) [2021-11-25 18:48:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-11-25 18:48:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 18:48:09,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:09,252 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:09,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-25 18:48:09,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:09,468 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:48:09,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash -158562985, now seen corresponding path program 1 times [2021-11-25 18:48:09,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:09,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252121590] [2021-11-25 18:48:09,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:09,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-25 18:48:09,579 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:09,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252121590] [2021-11-25 18:48:09,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252121590] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:48:09,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609007767] [2021-11-25 18:48:09,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:09,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:09,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:09,584 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:09,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 18:48:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:09,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-25 18:48:09,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:09,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2021-11-25 18:48:10,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:48:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:48:10,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:10,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-11-25 18:48:10,211 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:48:10,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609007767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:10,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1985514677] [2021-11-25 18:48:10,214 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2021-11-25 18:48:10,214 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:10,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:10,215 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:10,215 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:10,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:48:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2021-11-25 18:48:10,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,350 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 18:48:10,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 236 [2021-11-25 18:48:10,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:48:10,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:48:10,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:48:10,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:48:10,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:48:10,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:48:10,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:48:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:10,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:48:11,075 INFO L197 IcfgInterpreter]: Interpreting procedure dummy_abort with input of size 8 for LOIs [2021-11-25 18:48:11,077 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:13,542 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3767#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (not (= 4311811859 |ULTIMATE.start_Sum2_#res#1|)) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= |ULTIMATE.start_Sum2_#res#1| 9223372036854775807) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:13,542 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:13,542 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:48:13,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 23 [2021-11-25 18:48:13,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342116745] [2021-11-25 18:48:13,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:13,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 18:48:13,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:13,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 18:48:13,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1625, Unknown=0, NotChecked=0, Total=1892 [2021-11-25 18:48:13,544 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 23 states, 23 states have (on average 3.869565217391304) internal successors, (89), 23 states have internal predecessors, (89), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:48:13,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:13,981 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2021-11-25 18:48:13,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 18:48:13,982 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.869565217391304) internal successors, (89), 23 states have internal predecessors, (89), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-11-25 18:48:13,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:13,982 INFO L225 Difference]: With dead ends: 46 [2021-11-25 18:48:13,982 INFO L226 Difference]: Without dead ends: 46 [2021-11-25 18:48:13,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=463, Invalid=2399, Unknown=0, NotChecked=0, Total=2862 [2021-11-25 18:48:13,984 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 80 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:13,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 76 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:48:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-25 18:48:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-25 18:48:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 44 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:48:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2021-11-25 18:48:13,987 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 41 [2021-11-25 18:48:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:13,987 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2021-11-25 18:48:13,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.869565217391304) internal successors, (89), 23 states have internal predecessors, (89), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:48:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2021-11-25 18:48:13,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 18:48:13,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:13,988 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:14,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 18:48:14,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:14,189 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:48:14,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:14,189 INFO L85 PathProgramCache]: Analyzing trace with hash 296233247, now seen corresponding path program 2 times [2021-11-25 18:48:14,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:14,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865058039] [2021-11-25 18:48:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:14,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:14,314 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:14,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865058039] [2021-11-25 18:48:14,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865058039] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:48:14,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732750748] [2021-11-25 18:48:14,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:48:14,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:14,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:14,320 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:14,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 18:48:14,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 18:48:14,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:48:14,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:48:14,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:14,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:14,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732750748] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:14,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [111740466] [2021-11-25 18:48:14,859 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-25 18:48:14,860 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:14,860 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:14,860 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:14,860 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:14,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:14,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:48:14,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:14,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2021-11-25 18:48:14,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:14,996 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 18:48:14,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 236 [2021-11-25 18:48:15,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:48:15,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:48:15,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:48:15,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:48:15,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:48:15,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:48:15,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:48:15,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:15,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:48:15,693 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:17,646 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4149#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= 4311811859 |ULTIMATE.start_Sum2_#res#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:17,646 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:17,646 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:48:17,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-25 18:48:17,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981866744] [2021-11-25 18:48:17,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:17,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:48:17,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:17,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:48:17,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=645, Unknown=0, NotChecked=0, Total=812 [2021-11-25 18:48:17,648 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-11-25 18:48:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:17,724 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2021-11-25 18:48:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:48:17,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 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 41 [2021-11-25 18:48:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:17,725 INFO L225 Difference]: With dead ends: 49 [2021-11-25 18:48:17,725 INFO L226 Difference]: Without dead ends: 49 [2021-11-25 18:48:17,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=183, Invalid=747, Unknown=0, NotChecked=0, Total=930 [2021-11-25 18:48:17,726 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:17,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 100 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:48:17,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-25 18:48:17,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-25 18:48:17,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.0666666666666667) internal successors, (48), 47 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:48:17,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2021-11-25 18:48:17,729 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 41 [2021-11-25 18:48:17,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:17,729 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2021-11-25 18:48:17,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-11-25 18:48:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2021-11-25 18:48:17,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 18:48:17,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:17,730 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:17,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 18:48:17,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-25 18:48:17,941 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:48:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2077215002, now seen corresponding path program 3 times [2021-11-25 18:48:17,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:17,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749912625] [2021-11-25 18:48:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:17,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:18,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:18,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749912625] [2021-11-25 18:48:18,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749912625] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:48:18,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750843596] [2021-11-25 18:48:18,083 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:48:18,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:18,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:18,085 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:18,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 18:48:18,476 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:48:18,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:48:18,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-25 18:48:18,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:18,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:18,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750843596] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:18,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [564083209] [2021-11-25 18:48:18,768 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-25 18:48:18,768 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:18,769 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:18,769 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:18,769 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:18,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:18,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:18,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:48:18,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:18,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2021-11-25 18:48:18,876 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:48:18,909 INFO L354 Elim1Store]: treesize reduction 86, result has 23.2 percent of original size [2021-11-25 18:48:18,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 232 treesize of output 233 [2021-11-25 18:48:18,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:48:19,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:48:19,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:48:19,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:48:19,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:48:19,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:48:19,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:48:19,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:19,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:48:19,579 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:21,712 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4547#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= 4311811859 |ULTIMATE.start_Sum2_#res#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:21,712 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:21,712 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:48:21,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2021-11-25 18:48:21,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320668939] [2021-11-25 18:48:21,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:21,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 18:48:21,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:21,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 18:48:21,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1032, Unknown=0, NotChecked=0, Total=1260 [2021-11-25 18:48:21,714 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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) [2021-11-25 18:48:22,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:22,231 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-11-25 18:48:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 18:48:22,234 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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 44 [2021-11-25 18:48:22,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:22,234 INFO L225 Difference]: With dead ends: 55 [2021-11-25 18:48:22,234 INFO L226 Difference]: Without dead ends: 55 [2021-11-25 18:48:22,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 90 SyntacticMatches, 13 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=298, Invalid=1342, Unknown=0, NotChecked=0, Total=1640 [2021-11-25 18:48:22,235 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:22,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 212 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:48:22,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-25 18:48:22,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-25 18:48:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 53 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:48:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-25 18:48:22,238 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 44 [2021-11-25 18:48:22,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:22,239 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-25 18:48:22,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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) [2021-11-25 18:48:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-25 18:48:22,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 18:48:22,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:22,240 INFO L514 BasicCegarLoop]: trace histogram [10, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:22,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 18:48:22,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-25 18:48:22,444 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:48:22,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash -412230586, now seen corresponding path program 4 times [2021-11-25 18:48:22,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:22,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973066845] [2021-11-25 18:48:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:22,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:22,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:22,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973066845] [2021-11-25 18:48:22,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973066845] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:48:22,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445666572] [2021-11-25 18:48:22,774 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 18:48:22,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:22,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:22,780 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:22,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 18:48:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:23,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-25 18:48:23,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:48:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:23,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:48:24,205 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:24,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445666572] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:48:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [685126463] [2021-11-25 18:48:24,207 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-25 18:48:24,207 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:48:24,208 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:48:24,208 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:48:24,208 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:48:24,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:48:24,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2021-11-25 18:48:24,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,354 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 18:48:24,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 236 [2021-11-25 18:48:24,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:48:24,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:48:24,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:48:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:48:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:48:24,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:48:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:48:24,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:48:24,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:48:25,003 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:48:27,477 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5015#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= 4311811859 |ULTIMATE.start_Sum2_#res#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:48:27,477 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:48:27,477 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:48:27,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2021-11-25 18:48:27,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440904733] [2021-11-25 18:48:27,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:48:27,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-25 18:48:27,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:48:27,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-25 18:48:27,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=2313, Unknown=0, NotChecked=0, Total=2862 [2021-11-25 18:48:27,480 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 36 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 35 states have internal predecessors, (61), 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) [2021-11-25 18:48:53,620 WARN L227 SmtUtils]: Spent 7.63s on a formula simplification. DAG size of input: 66 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:48:55,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:48:55,081 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2021-11-25 18:48:55,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 18:48:55,082 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 35 states have internal predecessors, (61), 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 50 [2021-11-25 18:48:55,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:48:55,083 INFO L225 Difference]: With dead ends: 67 [2021-11-25 18:48:55,083 INFO L226 Difference]: Without dead ends: 67 [2021-11-25 18:48:55,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 104 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1322 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=865, Invalid=3423, Unknown=2, NotChecked=0, Total=4290 [2021-11-25 18:48:55,085 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 243 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:48:55,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 174 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 18:48:55,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-25 18:48:55,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-25 18:48:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.0476190476190477) internal successors, (66), 65 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:48:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2021-11-25 18:48:55,088 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 50 [2021-11-25 18:48:55,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:48:55,088 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2021-11-25 18:48:55,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 35 states have internal predecessors, (61), 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) [2021-11-25 18:48:55,089 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2021-11-25 18:48:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 18:48:55,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:48:55,090 INFO L514 BasicCegarLoop]: trace histogram [22, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:48:55,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-25 18:48:55,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:55,296 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:48:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:48:55,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1216180474, now seen corresponding path program 5 times [2021-11-25 18:48:55,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:48:55,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384980182] [2021-11-25 18:48:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:48:55,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:48:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:48:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:48:55,919 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:48:55,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384980182] [2021-11-25 18:48:55,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384980182] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:48:55,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470201136] [2021-11-25 18:48:55,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:48:55,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:48:55,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:48:55,921 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:48:55,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 18:49:07,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-11-25 18:49:07,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:49:07,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-25 18:49:07,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:49:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:49:08,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:49:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:49:10,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470201136] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:49:10,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1799327076] [2021-11-25 18:49:10,084 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-25 18:49:10,084 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:49:10,085 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:49:10,085 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:49:10,085 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:49:10,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:49:10,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2021-11-25 18:49:10,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,217 INFO L354 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2021-11-25 18:49:10,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 236 [2021-11-25 18:49:10,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:49:10,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:49:10,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:49:10,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:49:10,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:49:10,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:49:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:49:10,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:49:10,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:49:10,833 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:49:14,882 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5629#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= 4311811859 |ULTIMATE.start_Sum2_#res#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:49:14,882 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:49:14,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:49:14,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 71 [2021-11-25 18:49:14,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054499893] [2021-11-25 18:49:14,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:49:14,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-11-25 18:49:14,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:49:14,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-11-25 18:49:14,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1448, Invalid=6924, Unknown=0, NotChecked=0, Total=8372 [2021-11-25 18:49:14,888 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 72 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 71 states have internal predecessors, (97), 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) [2021-11-25 18:52:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:02,052 INFO L93 Difference]: Finished difference Result 91 states and 94 transitions. [2021-11-25 18:52:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-25 18:52:02,053 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 71 states have internal predecessors, (97), 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 62 [2021-11-25 18:52:02,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:02,053 INFO L225 Difference]: With dead ends: 91 [2021-11-25 18:52:02,054 INFO L226 Difference]: Without dead ends: 91 [2021-11-25 18:52:02,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 117 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3633 ImplicationChecksByTransitivity, 173.0s TimeCoverageRelationStatistics Valid=2596, Invalid=10512, Unknown=2, NotChecked=0, Total=13110 [2021-11-25 18:52:02,057 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:02,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 560 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 18:52:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-25 18:52:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-11-25 18:52:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 87 states have (on average 1.0344827586206897) internal successors, (90), 89 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:52:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2021-11-25 18:52:02,061 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 62 [2021-11-25 18:52:02,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:02,061 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2021-11-25 18:52:02,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 71 states have internal predecessors, (97), 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) [2021-11-25 18:52:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2021-11-25 18:52:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-25 18:52:02,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:02,063 INFO L514 BasicCegarLoop]: trace histogram [46, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:02,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-25 18:52:02,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:02,263 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-11-25 18:52:02,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1808165754, now seen corresponding path program 6 times [2021-11-25 18:52:02,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:02,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473456003] [2021-11-25 18:52:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:02,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:04,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:52:04,068 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:04,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473456003] [2021-11-25 18:52:04,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473456003] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:52:04,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907299844] [2021-11-25 18:52:04,069 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:52:04,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:04,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:52:04,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:52:04,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ebf7fda-9da4-4538-b28d-d46f8b2c6f1b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 18:52:04,667 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:52:04,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:52:04,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 97 conjunts are in the unsatisfiable core [2021-11-25 18:52:04,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:52:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:52:07,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:52:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1111 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-25 18:52:12,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907299844] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:52:12,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [263603524] [2021-11-25 18:52:12,853 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-25 18:52:12,853 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:52:12,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:52:12,853 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:52:12,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:52:12,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:12,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:12,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:52:12,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:12,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2021-11-25 18:52:12,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:52:12,982 INFO L354 Elim1Store]: treesize reduction 86, result has 23.2 percent of original size [2021-11-25 18:52:12,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 232 treesize of output 233 [2021-11-25 18:52:13,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-25 18:52:13,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:52:13,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 18:52:13,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 32 [2021-11-25 18:52:13,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2021-11-25 18:52:13,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-25 18:52:13,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-25 18:52:13,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:13,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-25 18:52:13,581 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:52:20,529 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6531#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (= 0 |ULTIMATE.start_main_~p~0#1.base|) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_Sum2_#res#1| |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= 4311811859 |ULTIMATE.start_Sum2_#res#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 18:52:20,530 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:52:20,530 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:52:20,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 143 [2021-11-25 18:52:20,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190880937] [2021-11-25 18:52:20,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:52:20,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 144 states [2021-11-25 18:52:20,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:20,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2021-11-25 18:52:20,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5058, Invalid=21024, Unknown=0, NotChecked=0, Total=26082 [2021-11-25 18:52:20,535 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand has 144 states, 144 states have (on average 1.1736111111111112) internal successors, (169), 143 states have internal predecessors, (169), 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) [2021-11-25 18:53:39,409 WARN L227 SmtUtils]: Spent 16.04s on a formula simplification. DAG size of input: 194 DAG size of output: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:55:24,784 WARN L227 SmtUtils]: Spent 26.20s on a formula simplification. DAG size of input: 190 DAG size of output: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:56:52,238 WARN L227 SmtUtils]: Spent 13.19s on a formula simplification. DAG size of input: 186 DAG size of output: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:56:54,264 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 43) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 41) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 37) 4294967296) .cse0) (<= |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 40) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 39) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (<= 94 |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 38) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 42) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:56:56,282 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 41) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 37) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 40) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 39) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 38) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 42) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:56:58,303 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 41) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 37) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 40) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 39) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 38) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:00,314 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 37) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 40) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 39) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 38) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:02,331 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 37) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 39) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 38) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:04,345 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 37) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 38) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:06,356 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 37) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:08,367 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 36) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:10,376 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 35) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:12,384 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 34) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:14,396 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 33) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:16,404 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 32) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:18,417 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 31) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:20,425 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 30) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:22,433 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 29) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:24,441 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 28) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:26,452 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 27) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:28,462 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 26) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 18:57:30,478 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (and (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 17) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 11) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 24) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 12) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 22) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 18) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 5) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 13) 4294967296) .cse0) (< (mod |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 19) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 7) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 23) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 9) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 14) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 25) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 20) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 6) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 21) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 1) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 8) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 10) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 16) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 2) 4294967296) .cse0) (< (mod (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 15) 4294967296) .cse0))) is different from false [2021-11-25 19:01:30,192 WARN L227 SmtUtils]: Spent 1.30m on a formula simplification that was a NOOP. DAG size: 103 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:01:32,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:34,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:36,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:38,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:40,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:01:42,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []