./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/pcompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/pcompf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f995d1a14a0e61f10b2f5817b1ff2bf8d1511dbe7297ad48450a11ed6f3a9160 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:18:28,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:18:28,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:18:28,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:18:28,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:18:28,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:18:28,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:18:28,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:18:28,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:18:28,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:18:28,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:18:28,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:18:28,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:18:28,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:18:28,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:18:28,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:18:28,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:18:28,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:18:28,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:18:28,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:18:28,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:18:28,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:18:28,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:18:28,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:18:28,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:18:28,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:18:28,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:18:28,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:18:28,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:18:28,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:18:28,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:18:28,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:18:28,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:18:28,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:18:28,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:18:28,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:18:28,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:18:28,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:18:28,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:18:28,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:18:28,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:18:28,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:18:28,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:18:28,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:18:28,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:18:28,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:18:28,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:18:28,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:18:28,421 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:18:28,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:18:28,422 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:18:28,422 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:18:28,423 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:18:28,423 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:18:28,423 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:18:28,423 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:18:28,424 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:18:28,424 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:18:28,424 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:18:28,424 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:18:28,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:18:28,425 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:18:28,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:18:28,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:18:28,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:18:28,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:18:28,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:18:28,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:18:28,427 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:18:28,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:18:28,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:18:28,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:18:28,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:18:28,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:18:28,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:18:28,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:18:28,429 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:18:28,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:18:28,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:18:28,430 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:18:28,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:18:28,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:18:28,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:18:28,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f995d1a14a0e61f10b2f5817b1ff2bf8d1511dbe7297ad48450a11ed6f3a9160 [2022-11-25 22:18:28,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:18:28,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:18:28,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:18:28,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:18:28,783 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:18:28,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-fpi/pcompf.c [2022-11-25 22:18:31,836 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:18:32,069 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:18:32,072 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/sv-benchmarks/c/array-fpi/pcompf.c [2022-11-25 22:18:32,079 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/data/7b8470f21/812a1bc53b714cdf85f9b50818ed94a0/FLAG94d58989d [2022-11-25 22:18:32,098 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/data/7b8470f21/812a1bc53b714cdf85f9b50818ed94a0 [2022-11-25 22:18:32,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:18:32,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:18:32,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:18:32,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:18:32,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:18:32,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c138de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32, skipping insertion in model container [2022-11-25 22:18:32,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:18:32,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:18:32,278 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/sv-benchmarks/c/array-fpi/pcompf.c[589,602] [2022-11-25 22:18:32,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:18:32,308 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:18:32,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/sv-benchmarks/c/array-fpi/pcompf.c[589,602] [2022-11-25 22:18:32,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:18:32,341 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:18:32,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32 WrapperNode [2022-11-25 22:18:32,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:18:32,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:18:32,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:18:32,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:18:32,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,375 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-11-25 22:18:32,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:18:32,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:18:32,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:18:32,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:18:32,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:18:32,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:18:32,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:18:32,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:18:32,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (1/1) ... [2022-11-25 22:18:32,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:18:32,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:32,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:18:32,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:18:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:18:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:18:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:18:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:18:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:18:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:18:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:18:32,559 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:18:32,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:18:32,768 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:18:32,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:18:32,823 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 22:18:32,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:32 BoogieIcfgContainer [2022-11-25 22:18:32,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:18:32,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:18:32,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:18:32,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:18:32,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:18:32" (1/3) ... [2022-11-25 22:18:32,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1e019e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:18:32, skipping insertion in model container [2022-11-25 22:18:32,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:32" (2/3) ... [2022-11-25 22:18:32,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1e019e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:18:32, skipping insertion in model container [2022-11-25 22:18:32,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:32" (3/3) ... [2022-11-25 22:18:32,835 INFO L112 eAbstractionObserver]: Analyzing ICFG pcompf.c [2022-11-25 22:18:32,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:18:32,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:18:32,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:18:32,901 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@39d981ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:18:32,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:18:32,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:18:32,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:32,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:32,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:32,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash 697271499, now seen corresponding path program 1 times [2022-11-25 22:18:32,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:32,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025596344] [2022-11-25 22:18:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:33,043 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:33,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173411702] [2022-11-25 22:18:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:33,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:33,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:33,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:33,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:18:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:33,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 22:18:33,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:33,549 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2022-11-25 22:18:33,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 281 [2022-11-25 22:18:33,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:18:33,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:18:33,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:18:34,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:18:34,372 INFO L321 Elim1Store]: treesize reduction 86, result has 16.5 percent of original size [2022-11-25 22:18:34,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 102 treesize of output 105 [2022-11-25 22:18:34,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:18:34,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:18:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:18:34,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:18:34,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:34,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025596344] [2022-11-25 22:18:34,507 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:34,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173411702] [2022-11-25 22:18:34,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173411702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:34,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:34,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:18:34,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942315009] [2022-11-25 22:18:34,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:34,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:18:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:34,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:18:34,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:18:34,632 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:34,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:34,783 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2022-11-25 22:18:34,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:18:34,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 22:18:34,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:34,795 INFO L225 Difference]: With dead ends: 37 [2022-11-25 22:18:34,795 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 22:18:34,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:18:34,807 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:34,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 19 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:18:34,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 22:18:34,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2022-11-25 22:18:34,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2022-11-25 22:18:34,846 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 8 [2022-11-25 22:18:34,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:34,847 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-25 22:18:34,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2022-11-25 22:18:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:18:34,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:34,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:34,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:35,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:18:35,055 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:35,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:35,056 INFO L85 PathProgramCache]: Analyzing trace with hash 131371694, now seen corresponding path program 1 times [2022-11-25 22:18:35,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:35,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654667724] [2022-11-25 22:18:35,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:35,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:35,097 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:35,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255093090] [2022-11-25 22:18:35,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:35,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:35,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:35,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:35,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:18:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:35,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:18:35,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:18:35,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:18:35,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:35,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654667724] [2022-11-25 22:18:35,247 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:35,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255093090] [2022-11-25 22:18:35,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255093090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:35,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:35,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:18:35,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537612107] [2022-11-25 22:18:35,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:35,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:18:35,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:35,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:18:35,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:18:35,253 INFO L87 Difference]: Start difference. First operand 15 states and 21 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:35,340 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-11-25 22:18:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:18:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:18:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:35,344 INFO L225 Difference]: With dead ends: 36 [2022-11-25 22:18:35,344 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 22:18:35,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:18:35,350 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:35,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 12 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:18:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 22:18:35,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 17. [2022-11-25 22:18:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2022-11-25 22:18:35,360 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2022-11-25 22:18:35,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:35,360 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-11-25 22:18:35,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:35,361 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-11-25 22:18:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:18:35,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:35,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:35,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:35,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:35,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:35,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:35,568 INFO L85 PathProgramCache]: Analyzing trace with hash -197136011, now seen corresponding path program 1 times [2022-11-25 22:18:35,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:35,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118070134] [2022-11-25 22:18:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:35,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:35,602 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:35,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441651732] [2022-11-25 22:18:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:35,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:35,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:35,605 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:35,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:18:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:35,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:18:35,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:18:35,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:35,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:18:35,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:35,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118070134] [2022-11-25 22:18:35,730 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:35,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441651732] [2022-11-25 22:18:35,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441651732] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:35,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [84843328] [2022-11-25 22:18:35,749 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 22:18:35,749 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:35,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:35,759 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:35,759 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:35,987 INFO L321 Elim1Store]: treesize reduction 209, result has 23.4 percent of original size [2022-11-25 22:18:35,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 40 treesize of output 82 [2022-11-25 22:18:36,119 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-25 22:18:36,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2022-11-25 22:18:36,377 INFO L321 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2022-11-25 22:18:36,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2022-11-25 22:18:36,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:36,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 70 [2022-11-25 22:18:36,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:36,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:36,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:36,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:36,703 INFO L321 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2022-11-25 22:18:36,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 503 treesize of output 486 [2022-11-25 22:18:36,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-25 22:18:36,899 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:37,271 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '288#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem17#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= ~N~0 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-25 22:18:37,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:18:37,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:18:37,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-11-25 22:18:37,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154479461] [2022-11-25 22:18:37,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:37,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:18:37,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:37,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:18:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:18:37,274 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:37,365 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-25 22:18:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:18:37,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:18:37,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:37,366 INFO L225 Difference]: With dead ends: 33 [2022-11-25 22:18:37,366 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 22:18:37,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:18:37,368 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:37,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 22 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:18:37,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 22:18:37,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2022-11-25 22:18:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-25 22:18:37,373 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 9 [2022-11-25 22:18:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:37,374 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-25 22:18:37,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-25 22:18:37,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:18:37,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:37,375 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:37,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:37,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:37,592 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:37,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1958511373, now seen corresponding path program 1 times [2022-11-25 22:18:37,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:37,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774769645] [2022-11-25 22:18:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:37,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:37,637 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:37,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228987928] [2022-11-25 22:18:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:37,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:37,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:37,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:37,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:18:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:37,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:18:37,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:18:37,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:18:37,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:37,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774769645] [2022-11-25 22:18:37,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:37,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228987928] [2022-11-25 22:18:37,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228987928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:37,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:37,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:18:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888607877] [2022-11-25 22:18:37,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:37,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:18:37,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:18:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:18:37,775 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:37,847 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-25 22:18:37,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:18:37,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 22:18:37,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:37,848 INFO L225 Difference]: With dead ends: 29 [2022-11-25 22:18:37,848 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 22:18:37,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:18:37,851 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:37,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:18:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 22:18:37,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2022-11-25 22:18:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-11-25 22:18:37,860 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 11 [2022-11-25 22:18:37,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:37,860 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-25 22:18:37,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-11-25 22:18:37,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:18:37,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:37,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:37,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:38,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:38,072 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1012980313, now seen corresponding path program 1 times [2022-11-25 22:18:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:38,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390225204] [2022-11-25 22:18:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:38,112 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:38,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914263948] [2022-11-25 22:18:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:38,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:38,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:38,114 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:38,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:18:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:38,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 22:18:38,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:38,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-25 22:18:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:38,245 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:18:38,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2022-11-25 22:18:38,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 22:18:38,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 22:18:38,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 22:18:38,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:38,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-25 22:18:38,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:18:38,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:38,438 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_267) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) is different from false [2022-11-25 22:18:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-25 22:18:38,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390225204] [2022-11-25 22:18:38,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914263948] [2022-11-25 22:18:38,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914263948] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:38,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2097848521] [2022-11-25 22:18:38,493 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 22:18:38,493 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:38,493 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:38,493 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:38,494 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:38,783 INFO L321 Elim1Store]: treesize reduction 209, result has 23.4 percent of original size [2022-11-25 22:18:38,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 40 treesize of output 82 [2022-11-25 22:18:38,906 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-25 22:18:38,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2022-11-25 22:18:39,162 INFO L321 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2022-11-25 22:18:39,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2022-11-25 22:18:39,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 70 [2022-11-25 22:18:39,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,421 INFO L321 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2022-11-25 22:18:39,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 503 treesize of output 486 [2022-11-25 22:18:39,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-25 22:18:39,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,575 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:39,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-25 22:18:39,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,646 INFO L321 Elim1Store]: treesize reduction 119, result has 11.2 percent of original size [2022-11-25 22:18:39,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 98 treesize of output 115 [2022-11-25 22:18:39,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,697 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:39,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:39,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,717 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:39,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-25 22:18:39,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,786 INFO L321 Elim1Store]: treesize reduction 119, result has 11.2 percent of original size [2022-11-25 22:18:39,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 98 treesize of output 115 [2022-11-25 22:18:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:39,849 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:39,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:39,903 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:40,363 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '551#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem17#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-25 22:18:40,364 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:18:40,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:18:40,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-25 22:18:40,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482932442] [2022-11-25 22:18:40,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:40,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:18:40,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:40,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:18:40,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=251, Unknown=5, NotChecked=32, Total=342 [2022-11-25 22:18:40,366 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) [2022-11-25 22:18:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:40,752 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-11-25 22:18:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 22:18:40,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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 11 [2022-11-25 22:18:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:40,753 INFO L225 Difference]: With dead ends: 38 [2022-11-25 22:18:40,754 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 22:18:40,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=506, Unknown=5, NotChecked=48, Total=702 [2022-11-25 22:18:40,755 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 43 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:40,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 29 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 0 Unknown, 24 Unchecked, 0.1s Time] [2022-11-25 22:18:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 22:18:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 17. [2022-11-25 22:18:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:40,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2022-11-25 22:18:40,761 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 11 [2022-11-25 22:18:40,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:40,762 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-11-25 22:18:40,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) [2022-11-25 22:18:40,762 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-11-25 22:18:40,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:18:40,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:40,764 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:40,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:40,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:40,970 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:40,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1778160839, now seen corresponding path program 2 times [2022-11-25 22:18:40,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:40,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398714328] [2022-11-25 22:18:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:40,993 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:40,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758675213] [2022-11-25 22:18:40,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:18:40,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:40,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:40,995 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:41,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:18:41,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 22:18:41,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:18:41,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:18:41,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:18:41,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:41,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:18:41,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:41,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398714328] [2022-11-25 22:18:41,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:41,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758675213] [2022-11-25 22:18:41,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758675213] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:41,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [602958237] [2022-11-25 22:18:41,219 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 22:18:41,219 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:41,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:41,220 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:41,220 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:41,305 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-25 22:18:41,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2022-11-25 22:18:41,520 INFO L321 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2022-11-25 22:18:41,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2022-11-25 22:18:41,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 52 [2022-11-25 22:18:41,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:41,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 70 [2022-11-25 22:18:41,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:41,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:41,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:41,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,815 INFO L321 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2022-11-25 22:18:41,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 492 treesize of output 484 [2022-11-25 22:18:41,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-25 22:18:41,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,947 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:41,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-25 22:18:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:41,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:42,011 INFO L321 Elim1Store]: treesize reduction 124, result has 7.5 percent of original size [2022-11-25 22:18:42,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 98 treesize of output 110 [2022-11-25 22:18:42,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:42,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:42,052 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:42,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:42,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:42,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:42,072 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:42,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:42,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:42,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:42,108 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 22:18:42,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 107 [2022-11-25 22:18:42,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:42,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:42,140 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:42,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:42,156 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:42,434 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '737#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem17#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-25 22:18:42,434 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:18:42,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:18:42,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-25 22:18:42,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938242621] [2022-11-25 22:18:42,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:42,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:18:42,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:42,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:18:42,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:18:42,436 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:42,570 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2022-11-25 22:18:42,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:18:42,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 22:18:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:42,572 INFO L225 Difference]: With dead ends: 52 [2022-11-25 22:18:42,572 INFO L226 Difference]: Without dead ends: 40 [2022-11-25 22:18:42,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-25 22:18:42,573 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 28 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:42,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 18 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:18:42,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-25 22:18:42,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2022-11-25 22:18:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:42,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-25 22:18:42,581 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 13 [2022-11-25 22:18:42,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:42,581 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-25 22:18:42,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:42,581 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-25 22:18:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 22:18:42,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:42,582 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:42,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:42,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 22:18:42,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:42,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1261411007, now seen corresponding path program 1 times [2022-11-25 22:18:42,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:42,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198717337] [2022-11-25 22:18:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:42,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:42,808 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:42,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64279433] [2022-11-25 22:18:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:42,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:42,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:42,809 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:42,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:18:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:42,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-25 22:18:42,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:43,564 INFO L321 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2022-11-25 22:18:43,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 462 treesize of output 894 [2022-11-25 22:18:43,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-11-25 22:18:43,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-25 22:18:43,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-11-25 22:18:43,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-11-25 22:18:44,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:18:46,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:46,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:46,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:46,596 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-11-25 22:18:46,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 575 treesize of output 548 [2022-11-25 22:18:47,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:47,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:47,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:47,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:47,073 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-11-25 22:18:47,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 622 treesize of output 585 [2022-11-25 22:18:47,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1828 treesize of output 1833 [2022-11-25 22:18:48,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:48,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-11-25 22:18:48,507 INFO L321 Elim1Store]: treesize reduction 40, result has 16.7 percent of original size [2022-11-25 22:18:48,508 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 1778 treesize of output 1519 [2022-11-25 22:18:49,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:49,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:49,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 38 [2022-11-25 22:18:49,425 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 22:18:49,425 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 671 treesize of output 624 [2022-11-25 22:18:49,872 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:49,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-11-25 22:18:49,921 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse11 (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (= |c_ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse10 (not .cse1)) (.cse31 (not .cse11)) (.cse32 (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|))) (and (let ((.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse0 (= (select .cse9 |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) (.cse25 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (or (and .cse0 .cse1 (exists ((v_DerPreprocessor_30 (Array Int Int)) (v_DerPreprocessor_31 (Array Int Int)) (v_prenex_76 (Array Int Int)) (v_prenex_75 (Array Int Int)) (v_DerPreprocessor_9 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int)) (v_prenex_23 (Array Int Int)) (v_DerPreprocessor_29 (Array Int Int)) (v_prenex_77 (Array Int Int)) (v_prenex_22 (Array Int Int))) (let ((.cse7 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_29) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_30) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_31) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_29) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_30) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_31))) (let ((.cse5 (store (store (store (store (store (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_8) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_8) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_9) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (let ((.cse3 (select .cse5 |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse6 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_22) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_23) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_77) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_22) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_23) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_77)) (.cse4 (select .cse7 |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse2 (store (store (store (store (store (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_75) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_76) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_77) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_75) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_76) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_77))) (and (= (select .cse2 |c_ULTIMATE.start_main_~b~0#1.base|) .cse3) (= (select .cse4 |c_ULTIMATE.start_main_~c~0#1.offset|) 1) (= (select .cse3 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= (select v_DerPreprocessor_31 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= v_DerPreprocessor_8 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|) .cse4) (= (select v_prenex_77 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= v_DerPreprocessor_29 (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|) v_prenex_22) (= .cse8 .cse4) (= (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|) v_prenex_75))))))) (and .cse10 (or (and .cse0 .cse11 (or (exists ((v_DerPreprocessor_32 (Array Int Int)) (v_DerPreprocessor_33 (Array Int Int))) (let ((.cse13 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_32) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_33) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_32) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_33) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (let ((.cse12 (select .cse13 |c_ULTIMATE.start_main_~b~0#1.base|))) (and (= (select .cse12 |c_ULTIMATE.start_main_~c~0#1.offset|) 1) (= v_DerPreprocessor_32 (select .cse13 |c_ULTIMATE.start_main_~a~0#1.base|)) (exists ((v_prenex_72 (Array Int Int)) (v_prenex_71 (Array Int Int)) (v_prenex_70 (Array Int Int)) (v_prenex_74 (Array Int Int)) (v_prenex_73 (Array Int Int)) (v_prenex_69 (Array Int Int))) (let ((.cse17 (store (store (store (store (store (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_70) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_69) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_71) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_70) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_69) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_71)) (.cse15 (store (store (store (store (store (store .cse13 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_73) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_74) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_72) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_73) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_74) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_72))) (let ((.cse16 (select .cse15 |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse14 (select .cse17 |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= .cse12 .cse14) (= (select .cse15 |c_ULTIMATE.start_main_~a~0#1.base|) v_prenex_73) (= .cse8 .cse16) (= .cse16 (select .cse17 |c_ULTIMATE.start_main_~b~0#1.base|)) (= (select v_prenex_71 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select v_prenex_72 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= v_prenex_70 .cse14))))))))) (exists ((v_DerPreprocessor_32 (Array Int Int)) (v_DerPreprocessor_33 (Array Int Int))) (let ((.cse18 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_32) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_33) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_32) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_33) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (and (= (select (select .cse18 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 1) (= v_DerPreprocessor_32 (select .cse18 |c_ULTIMATE.start_main_~a~0#1.base|)) (exists ((v_DerPreprocessor_20 (Array Int Int)) (v_prenex_19 (Array Int Int)) (v_DerPreprocessor_21 (Array Int Int)) (v_arrayElimCell_130 (Array Int Int)) (v_prenex_18 (Array Int Int)) (v_DerPreprocessor_22 (Array Int Int))) (let ((.cse21 (store (store (store (store (store (store .cse18 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_18) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_19) |c_ULTIMATE.start_main_~c~0#1.base| v_arrayElimCell_130) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_18) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_19) |c_ULTIMATE.start_main_~c~0#1.base| v_arrayElimCell_130))) (let ((.cse19 (select .cse21 |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse20 (store (store (store (store (store (store .cse18 |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_22) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_20) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_22))) (and (= .cse8 .cse19) (= .cse19 (select .cse20 |c_ULTIMATE.start_main_~b~0#1.base|)) (= (select .cse21 |c_ULTIMATE.start_main_~a~0#1.base|) v_prenex_18) (= (select v_DerPreprocessor_22 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= (select v_arrayElimCell_130 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select .cse20 |c_ULTIMATE.start_main_~a~0#1.base|) v_DerPreprocessor_20)))))))))) (and .cse0 (or (exists ((v_prenex_72 (Array Int Int)) (v_prenex_71 (Array Int Int)) (v_prenex_70 (Array Int Int)) (v_prenex_74 (Array Int Int)) (v_prenex_73 (Array Int Int)) (v_prenex_69 (Array Int Int))) (let ((.cse24 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_70) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_69) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_71) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_70) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_69) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_71)) (.cse26 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_73) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_74) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_72) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_73) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_74) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_72))) (let ((.cse23 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse22 (select .cse24 |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= .cse8 .cse22) (= (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= (select .cse24 |c_ULTIMATE.start_main_~b~0#1.base|) .cse23) (= .cse25 .cse22) (= (select .cse26 |c_ULTIMATE.start_main_~a~0#1.base|) .cse22) (= (select v_prenex_71 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select v_prenex_72 |c_ULTIMATE.start_main_~c~0#1.offset|) 0))))) (exists ((v_prenex_61 (Array Int Int)) (v_prenex_60 (Array Int Int)) (v_prenex_62 (Array Int Int)) (v_prenex_68 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int)) (v_DerPreprocessor_12 (Array Int Int))) (let ((.cse28 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_60) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_61) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_62) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_60) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_61) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_62)) (.cse30 (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_11) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_68) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_11) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_68))) (let ((.cse27 (select .cse30 |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse29 (select .cse28 |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= .cse27 (select .cse28 |c_ULTIMATE.start_main_~b~0#1.base|)) (= .cse25 .cse29) (= (select .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= (select .cse30 |c_ULTIMATE.start_main_~a~0#1.base|) .cse29) (= (select v_prenex_62 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select v_prenex_68 |c_ULTIMATE.start_main_~c~0#1.offset|) 0)))))) (= (select .cse8 |c_ULTIMATE.start_main_~c~0#1.offset|) 1) .cse31))) (and .cse0 .cse32 (or (and (exists ((v_DerPreprocessor_24 Int) (v_DerPreprocessor_23 Int) (v_arrayElimCell_127 (Array Int Int)) (v_prenex_85 (Array Int Int)) (v_prenex_84 (Array Int Int)) (v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_prenex_27 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int)) (v_prenex_26 (Array Int Int))) (let ((.cse39 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26))) (let ((.cse37 (select (store (store (store (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse33 (store (store (store (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| .cse37) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| .cse37))) (let ((.cse38 (store (store (store (store (store (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_84) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_85) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_84) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_85) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (let ((.cse35 (store (store (store (store (store (store .cse33 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_26) |c_ULTIMATE.start_main_~c~0#1.base| v_arrayElimCell_127) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_26) |c_ULTIMATE.start_main_~c~0#1.base| v_arrayElimCell_127)) (.cse36 (select .cse38 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse34 (select (store (store .cse37 |c_ULTIMATE.start_main_~c~0#1.offset| v_DerPreprocessor_23) |c_ULTIMATE.start_main_~b~0#1.offset| v_DerPreprocessor_24) |c_ULTIMATE.start_main_~c~0#1.offset|))) (and (= (select .cse33 |c_ULTIMATE.start_main_~b~0#1.base|) v_DerPreprocessor_26) (= .cse34 1) (= (select v_arrayElimCell_127 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select .cse35 |c_ULTIMATE.start_main_~b~0#1.base|) v_prenex_26) (= (select .cse35 |c_ULTIMATE.start_main_~a~0#1.base|) .cse36) (= (select .cse37 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= v_prenex_85 (select .cse38 |c_ULTIMATE.start_main_~b~0#1.base|)) (= .cse37 .cse36) (= (select .cse33 |c_ULTIMATE.start_main_~a~0#1.base|) .cse36) (= .cse25 .cse36) (= v_DerPreprocessor_23 .cse34)))))))) .cse31) (and .cse31 (or (exists ((v_DerPreprocessor_24 Int) (v_DerPreprocessor_23 Int) (v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (let ((.cse46 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26))) (let ((.cse42 (select (store (store (store (store .cse46 |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse40 (store (store (store (store .cse46 |c_ULTIMATE.start_main_~c~0#1.base| .cse42) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| .cse42)) (.cse41 (select (store (store .cse42 |c_ULTIMATE.start_main_~c~0#1.offset| v_DerPreprocessor_23) |c_ULTIMATE.start_main_~b~0#1.offset| v_DerPreprocessor_24) |c_ULTIMATE.start_main_~c~0#1.offset|))) (and (= (select .cse40 |c_ULTIMATE.start_main_~b~0#1.base|) v_DerPreprocessor_26) (= .cse41 1) (= (select .cse42 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (exists ((v_arrayElimCell_127 (Array Int Int)) (v_prenex_85 (Array Int Int)) (v_prenex_84 (Array Int Int)) (v_prenex_27 (Array Int Int)) (v_prenex_26 (Array Int Int))) (let ((.cse45 (store (store (store (store (store (store .cse40 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_84) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_85) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_84) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_85) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (let ((.cse43 (store (store (store (store (store (store .cse40 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_26) |c_ULTIMATE.start_main_~c~0#1.base| v_arrayElimCell_127) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_26) |c_ULTIMATE.start_main_~c~0#1.base| v_arrayElimCell_127)) (.cse44 (select .cse45 |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= (select v_arrayElimCell_127 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select .cse43 |c_ULTIMATE.start_main_~b~0#1.base|) v_prenex_26) (= (select .cse43 |c_ULTIMATE.start_main_~a~0#1.base|) .cse44) (= v_prenex_85 (select .cse45 |c_ULTIMATE.start_main_~b~0#1.base|)) (= (select .cse40 |c_ULTIMATE.start_main_~a~0#1.base|) .cse44) (= .cse25 .cse44))))) (= v_DerPreprocessor_23 .cse41)))))) (exists ((v_DerPreprocessor_24 Int) (v_DerPreprocessor_23 Int) (v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (let ((.cse53 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26))) (let ((.cse49 (select (store (store (store (store .cse53 |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse47 (store (store (store (store .cse53 |c_ULTIMATE.start_main_~c~0#1.base| .cse49) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| .cse49)) (.cse48 (select (store (store .cse49 |c_ULTIMATE.start_main_~c~0#1.offset| v_DerPreprocessor_23) |c_ULTIMATE.start_main_~b~0#1.offset| v_DerPreprocessor_24) |c_ULTIMATE.start_main_~c~0#1.offset|))) (and (= (select .cse47 |c_ULTIMATE.start_main_~b~0#1.base|) v_DerPreprocessor_26) (= .cse48 1) (= (select .cse49 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (exists ((v_prenex_81 (Array Int Int)) (v_prenex_80 (Array Int Int)) (v_prenex_79 (Array Int Int)) (v_prenex_78 (Array Int Int))) (let ((.cse52 (store (store (store (store (store (store .cse47 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_78) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_79) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_78) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_79) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (let ((.cse50 (select .cse52 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse51 (store (store (store (store (store (store .cse47 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_80) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_81) |c_ULTIMATE.start_main_~c~0#1.base| .cse50) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_80) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_81) |c_ULTIMATE.start_main_~c~0#1.base| .cse50))) (and (= (select .cse47 |c_ULTIMATE.start_main_~a~0#1.base|) .cse50) (= (select .cse50 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= .cse50 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.base|)) (= .cse25 .cse50) (= (select .cse52 |c_ULTIMATE.start_main_~b~0#1.base|) v_prenex_79) (= (select .cse51 |c_ULTIMATE.start_main_~b~0#1.base|) v_prenex_81)))))) (= v_DerPreprocessor_23 .cse48)))))))) (and .cse11 (exists ((v_DerPreprocessor_24 Int) (v_prenex_82 (Array Int Int)) (v_DerPreprocessor_23 Int) (v_DerPreprocessor_26 (Array Int Int)) (v_prenex_25 (Array Int Int)) (v_prenex_47 (Array Int Int)) (v_prenex_24 (Array Int Int)) (v_prenex_46 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (let ((.cse59 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26))) (let ((.cse57 (select (store (store (store (store .cse59 |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse54 (store (store (store (store .cse59 |c_ULTIMATE.start_main_~c~0#1.base| .cse57) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| .cse57))) (let ((.cse56 (store (store (store (store (store (store .cse54 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_25) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_24) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_82) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_25) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_24) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_82)) (.cse55 (select (store (store .cse57 |c_ULTIMATE.start_main_~c~0#1.offset| v_DerPreprocessor_23) |c_ULTIMATE.start_main_~b~0#1.offset| v_DerPreprocessor_24) |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse58 (store (store (store (store (store (store .cse54 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_46) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_47) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_46) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_47) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (and (= (select .cse54 |c_ULTIMATE.start_main_~b~0#1.base|) v_DerPreprocessor_26) (= .cse55 1) (= v_prenex_25 (select .cse56 |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select v_prenex_82 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= (select .cse57 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= v_prenex_24 (select .cse56 |c_ULTIMATE.start_main_~b~0#1.base|)) (= v_DerPreprocessor_25 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.base|)) (= v_DerPreprocessor_23 .cse55) (= (select .cse58 |c_ULTIMATE.start_main_~b~0#1.base|) v_prenex_47) (= v_prenex_46 (select .cse58 |c_ULTIMATE.start_main_~a~0#1.base|))))))))) (and .cse1 (exists ((v_prenex_83 (Array Int Int)) (v_DerPreprocessor_24 Int) (v_DerPreprocessor_23 Int) (v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_15 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_prenex_49 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int)) (v_prenex_48 (Array Int Int))) (let ((.cse65 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26))) (let ((.cse64 (select (store (store (store (store .cse65 |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse60 (store (store (store (store .cse65 |c_ULTIMATE.start_main_~c~0#1.base| .cse64) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| .cse64))) (let ((.cse61 (select (store (store .cse64 |c_ULTIMATE.start_main_~c~0#1.offset| v_DerPreprocessor_23) |c_ULTIMATE.start_main_~b~0#1.offset| v_DerPreprocessor_24) |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse62 (store (store (store (store (store (store .cse60 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_48) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_49) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_48) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_49) |c_ULTIMATE.start_main_~c~0#1.base| .cse9)) (.cse63 (store (store (store (store (store (store .cse60 |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_14) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_83) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_14) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_15) |c_ULTIMATE.start_main_~c~0#1.base| v_prenex_83))) (and (= (select .cse60 |c_ULTIMATE.start_main_~b~0#1.base|) v_DerPreprocessor_26) (= (select v_prenex_83 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= .cse61 1) (= (select .cse62 |c_ULTIMATE.start_main_~a~0#1.base|) v_prenex_48) (= v_DerPreprocessor_15 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.base|)) (= (select .cse64 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (= v_DerPreprocessor_25 (select .cse60 |c_ULTIMATE.start_main_~a~0#1.base|)) (= v_DerPreprocessor_23 .cse61) (= v_prenex_49 (select .cse62 |c_ULTIMATE.start_main_~b~0#1.base|)) (= v_DerPreprocessor_14 (select .cse63 |c_ULTIMATE.start_main_~a~0#1.base|))))))))) (exists ((v_DerPreprocessor_24 Int) (v_DerPreprocessor_23 Int) (v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_28 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (let ((.cse74 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26))) (let ((.cse68 (select (store (store (store (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| v_DerPreprocessor_28) |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse66 (store (store (store (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| .cse68) |c_ULTIMATE.start_main_~a~0#1.base| v_DerPreprocessor_25) |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_26) |c_ULTIMATE.start_main_~c~0#1.base| .cse68))) (let ((.cse69 (select .cse66 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse67 (select (store (store .cse68 |c_ULTIMATE.start_main_~c~0#1.offset| v_DerPreprocessor_23) |c_ULTIMATE.start_main_~b~0#1.offset| v_DerPreprocessor_24) |c_ULTIMATE.start_main_~c~0#1.offset|))) (and (= (select .cse66 |c_ULTIMATE.start_main_~b~0#1.base|) v_DerPreprocessor_26) (= .cse67 1) (= (select .cse68 |c_ULTIMATE.start_main_~c~0#1.offset|) 0) (exists ((v_prenex_81 (Array Int Int)) (v_prenex_80 (Array Int Int)) (v_prenex_79 (Array Int Int)) (v_prenex_78 (Array Int Int))) (let ((.cse72 (store (store (store (store (store (store .cse66 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_78) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_79) |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_78) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_79) |c_ULTIMATE.start_main_~c~0#1.base| .cse9))) (let ((.cse70 (select .cse72 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse73 (store (store (store (store (store (store .cse66 |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_80) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_81) |c_ULTIMATE.start_main_~c~0#1.base| .cse70) |c_ULTIMATE.start_main_~a~0#1.base| v_prenex_80) |c_ULTIMATE.start_main_~b~0#1.base| v_prenex_81) |c_ULTIMATE.start_main_~c~0#1.base| .cse70))) (let ((.cse71 (select .cse73 |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= .cse69 .cse70) (= .cse70 .cse71) (= .cse25 .cse70) (= (select .cse72 |c_ULTIMATE.start_main_~b~0#1.base|) v_prenex_79) (= .cse70 v_prenex_78) (= (select .cse73 |c_ULTIMATE.start_main_~b~0#1.base|) v_prenex_81) (= .cse68 .cse70) (= v_prenex_80 .cse71))))))) (= v_DerPreprocessor_25 .cse69) (= v_DerPreprocessor_23 .cse67)))))))))))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) .cse10 (= |c_ULTIMATE.start_main_~c~0#1.offset| 0) .cse31 (not .cse32)))) is different from true [2022-11-25 22:18:49,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:49,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:49,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:49,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 80 [2022-11-25 22:18:49,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:18:50,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:18:50,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:18:50,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:50,055 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:50,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-25 22:18:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:50,085 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-25 22:18:50,086 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 38 treesize of output 39 [2022-11-25 22:18:50,198 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 22:18:50,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 30 [2022-11-25 22:18:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-25 22:18:50,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:18:50,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:50,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198717337] [2022-11-25 22:18:50,509 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:50,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64279433] [2022-11-25 22:18:50,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64279433] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:50,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [523352831] [2022-11-25 22:18:50,512 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-25 22:18:50,512 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:50,512 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:50,512 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:50,512 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:50,695 INFO L321 Elim1Store]: treesize reduction 209, result has 23.4 percent of original size [2022-11-25 22:18:50,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 40 treesize of output 82 [2022-11-25 22:18:50,915 INFO L321 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2022-11-25 22:18:50,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2022-11-25 22:18:50,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2022-11-25 22:18:50,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:50,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:50,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 70 [2022-11-25 22:18:51,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,159 INFO L321 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2022-11-25 22:18:51,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 503 treesize of output 486 [2022-11-25 22:18:51,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-25 22:18:51,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,276 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:51,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-25 22:18:51,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,340 INFO L321 Elim1Store]: treesize reduction 124, result has 7.5 percent of original size [2022-11-25 22:18:51,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 98 treesize of output 110 [2022-11-25 22:18:51,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,378 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:51,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,399 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:51,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:51,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,454 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 22:18:51,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 107 [2022-11-25 22:18:51,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:51,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:51,496 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:51,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:51,671 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:52,236 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '964#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2022-11-25 22:18:52,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:18:52,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:18:52,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2022-11-25 22:18:52,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988440011] [2022-11-25 22:18:52,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:52,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 22:18:52,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:52,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 22:18:52,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=428, Unknown=10, NotChecked=42, Total=552 [2022-11-25 22:18:52,238 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:53,440 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2022-11-25 22:18:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 22:18:53,441 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 22:18:53,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:53,441 INFO L225 Difference]: With dead ends: 44 [2022-11-25 22:18:53,441 INFO L226 Difference]: Without dead ends: 42 [2022-11-25 22:18:53,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=196, Invalid=854, Unknown=10, NotChecked=62, Total=1122 [2022-11-25 22:18:53,442 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 61 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:53,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 50 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 154 Invalid, 1 Unknown, 20 Unchecked, 0.2s Time] [2022-11-25 22:18:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-25 22:18:53,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2022-11-25 22:18:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-11-25 22:18:53,450 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2022-11-25 22:18:53,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:53,451 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-11-25 22:18:53,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-11-25 22:18:53,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 22:18:53,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:53,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:53,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:53,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:53,660 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:53,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:53,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1815978007, now seen corresponding path program 2 times [2022-11-25 22:18:53,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:53,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611130906] [2022-11-25 22:18:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:53,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:53,688 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:53,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489918519] [2022-11-25 22:18:53,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:18:53,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:53,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:53,690 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:53,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:18:53,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 22:18:53,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:18:53,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:18:53,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:18:53,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:18:53,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:53,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611130906] [2022-11-25 22:18:53,865 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:53,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489918519] [2022-11-25 22:18:53,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489918519] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:53,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [458238488] [2022-11-25 22:18:53,867 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-25 22:18:53,867 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:53,868 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:53,868 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:53,868 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:54,072 INFO L321 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2022-11-25 22:18:54,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2022-11-25 22:18:54,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 52 [2022-11-25 22:18:54,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2022-11-25 22:18:54,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 62 [2022-11-25 22:18:54,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,338 INFO L321 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2022-11-25 22:18:54,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 484 treesize of output 487 [2022-11-25 22:18:54,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-25 22:18:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,479 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:54,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:54,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,515 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 22:18:54,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 107 [2022-11-25 22:18:54,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,556 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:54,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:54,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,592 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:54,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:54,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,630 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:54,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:54,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:54,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:54,652 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:54,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:54,817 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:55,307 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1197#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2022-11-25 22:18:55,307 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:18:55,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:18:55,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-25 22:18:55,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131494680] [2022-11-25 22:18:55,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:55,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:18:55,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:55,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:18:55,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:18:55,310 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:55,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:55,465 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2022-11-25 22:18:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 22:18:55,466 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-25 22:18:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:55,466 INFO L225 Difference]: With dead ends: 52 [2022-11-25 22:18:55,466 INFO L226 Difference]: Without dead ends: 43 [2022-11-25 22:18:55,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-25 22:18:55,467 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:55,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:18:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-25 22:18:55,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 26. [2022-11-25 22:18:55,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-25 22:18:55,478 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 15 [2022-11-25 22:18:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:55,478 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-25 22:18:55,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-25 22:18:55,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 22:18:55,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:55,479 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:55,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-25 22:18:55,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:55,690 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:55,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:55,691 INFO L85 PathProgramCache]: Analyzing trace with hash 19414318, now seen corresponding path program 3 times [2022-11-25 22:18:55,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:55,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674145363] [2022-11-25 22:18:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:55,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:55,710 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:55,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1712257640] [2022-11-25 22:18:55,711 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 22:18:55,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:55,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:55,712 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:55,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 22:18:55,811 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 22:18:55,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:18:55,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:18:55,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:18:55,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:18:55,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:55,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674145363] [2022-11-25 22:18:55,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:18:55,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712257640] [2022-11-25 22:18:55,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712257640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:55,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [432513887] [2022-11-25 22:18:55,913 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 22:18:55,913 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:55,914 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:55,914 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:55,914 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:55,995 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-25 22:18:55,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2022-11-25 22:18:56,202 INFO L321 Elim1Store]: treesize reduction 209, result has 23.4 percent of original size [2022-11-25 22:18:56,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 40 treesize of output 82 [2022-11-25 22:18:56,454 INFO L321 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2022-11-25 22:18:56,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2022-11-25 22:18:56,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 70 [2022-11-25 22:18:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,693 INFO L321 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2022-11-25 22:18:56,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 492 treesize of output 484 [2022-11-25 22:18:56,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-25 22:18:56,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,811 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:56,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:56,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,848 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 22:18:56,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 107 [2022-11-25 22:18:56,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,896 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:56,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:56,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,954 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:56,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-25 22:18:56,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:56,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:56,992 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:56,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:57,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:57,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:18:57,022 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:18:57,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:18:57,039 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:57,377 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1426#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem17#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-25 22:18:57,377 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:18:57,378 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:18:57,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-25 22:18:57,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107200575] [2022-11-25 22:18:57,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:57,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:18:57,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:57,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:18:57,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:18:57,379 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:57,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:57,591 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2022-11-25 22:18:57,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:18:57,594 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 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 15 [2022-11-25 22:18:57,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:57,595 INFO L225 Difference]: With dead ends: 65 [2022-11-25 22:18:57,595 INFO L226 Difference]: Without dead ends: 42 [2022-11-25 22:18:57,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-11-25 22:18:57,596 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 22 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:57,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 30 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:18:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-25 22:18:57,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 27. [2022-11-25 22:18:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-11-25 22:18:57,604 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 15 [2022-11-25 22:18:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:57,605 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-11-25 22:18:57,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:18:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-25 22:18:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 22:18:57,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:57,606 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:57,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:57,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:57,816 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:57,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1741655437, now seen corresponding path program 3 times [2022-11-25 22:18:57,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:57,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321241196] [2022-11-25 22:18:57,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:57,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:57,847 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:18:57,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283639407] [2022-11-25 22:18:57,848 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 22:18:57,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:57,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:57,850 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:57,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 22:18:57,965 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 22:18:57,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:18:57,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-25 22:18:57,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:58,588 INFO L321 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2022-11-25 22:18:58,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 226 treesize of output 790 [2022-11-25 22:18:58,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-25 22:18:58,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-11-25 22:18:58,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-11-25 22:18:58,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-11-25 22:18:59,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:19:01,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:01,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:01,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:01,543 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2022-11-25 22:19:01,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 427 treesize of output 426 [2022-11-25 22:19:01,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:01,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:01,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:01,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:01,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:01,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 650 treesize of output 635 [2022-11-25 22:19:02,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:02,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:02,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:02,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:02,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:02,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 647 treesize of output 632 [2022-11-25 22:19:02,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1772 treesize of output 1768 [2022-11-25 22:19:03,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:03,774 INFO L321 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2022-11-25 22:19:03,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 322 treesize of output 362 [2022-11-25 22:19:03,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:19:03,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:19:03,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:19:03,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:19:03,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:03,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:03,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 5 [2022-11-25 22:19:04,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:04,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:04,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:04,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:04,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 57 [2022-11-25 22:19:04,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:19:04,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:04,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:04,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 735 treesize of output 650 [2022-11-25 22:19:04,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:04,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:04,461 INFO L350 Elim1Store]: Elim1 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 247 treesize of output 23 [2022-11-25 22:19:04,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:04,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-25 22:19:04,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:04,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-25 22:19:04,793 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:04,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-11-25 22:19:05,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,023 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:05,023 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 118 treesize of output 113 [2022-11-25 22:19:05,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 22:19:05,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-11-25 22:19:05,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-25 22:19:05,110 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:05,111 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 21 treesize of output 26 [2022-11-25 22:19:05,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,169 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:05,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-25 22:19:05,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,211 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:05,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-25 22:19:05,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,243 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-25 22:19:05,243 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 38 treesize of output 39 [2022-11-25 22:19:05,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:05,283 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-25 22:19:05,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 51 [2022-11-25 22:19:05,418 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 22:19:05,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 30 [2022-11-25 22:19:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:19:05,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:07,738 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_632 Int) (v_ArrVal_630 Int) (|v_ULTIMATE.start_main_~i~0#1_198| Int) (v_ArrVal_629 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_200| Int) (v_ArrVal_637 Int)) (or (= (let ((.cse1 (+ 8 |c_ULTIMATE.start_main_~c~0#1.offset|))) (select (store (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_629))) (let ((.cse2 (store (store (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_630) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_200|) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_632))) (let ((.cse0 (select (store .cse3 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~c~0#1.base|))) (store .cse0 .cse1 (+ (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_198|)) v_ArrVal_637) .cse1)) 1) (not (<= 2 |v_ULTIMATE.start_main_~i~0#1_198|)) (not (<= 2 |v_ULTIMATE.start_main_~i~0#1_200|)))) is different from false [2022-11-25 22:19:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-11-25 22:19:07,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:19:07,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321241196] [2022-11-25 22:19:07,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:19:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283639407] [2022-11-25 22:19:07,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283639407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [164865920] [2022-11-25 22:19:07,780 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-25 22:19:07,780 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:19:07,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:19:07,780 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:19:07,780 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:19:07,977 INFO L321 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2022-11-25 22:19:07,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2022-11-25 22:19:07,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2022-11-25 22:19:08,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 52 [2022-11-25 22:19:08,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 70 [2022-11-25 22:19:08,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,218 INFO L321 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2022-11-25 22:19:08,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 492 treesize of output 484 [2022-11-25 22:19:08,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2022-11-25 22:19:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,336 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:08,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-25 22:19:08,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,397 INFO L321 Elim1Store]: treesize reduction 124, result has 7.5 percent of original size [2022-11-25 22:19:08,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 98 treesize of output 110 [2022-11-25 22:19:08,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,455 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:08,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:19:08,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,473 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:08,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:19:08,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,507 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 22:19:08,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 107 [2022-11-25 22:19:08,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:08,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:08,535 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:08,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2022-11-25 22:19:08,690 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:19:09,237 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1715#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2022-11-25 22:19:09,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:19:09,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:19:09,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2022-11-25 22:19:09,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200014999] [2022-11-25 22:19:09,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:19:09,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 22:19:09,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:19:09,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 22:19:09,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=656, Unknown=2, NotChecked=52, Total=812 [2022-11-25 22:19:09,239 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:19:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:09,869 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-25 22:19:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 22:19:09,870 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 22:19:09,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:09,870 INFO L225 Difference]: With dead ends: 36 [2022-11-25 22:19:09,870 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 22:19:09,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=228, Invalid=1096, Unknown=12, NotChecked=70, Total=1406 [2022-11-25 22:19:09,872 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 57 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 21 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:09,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 16 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 126 Invalid, 21 Unknown, 19 Unchecked, 0.2s Time] [2022-11-25 22:19:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 22:19:09,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2022-11-25 22:19:09,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 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) [2022-11-25 22:19:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-25 22:19:09,883 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 17 [2022-11-25 22:19:09,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:09,883 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-25 22:19:09,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:19:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-25 22:19:09,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 22:19:09,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:09,884 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:19:09,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:10,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 22:19:10,091 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:10,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1837651189, now seen corresponding path program 4 times [2022-11-25 22:19:10,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:19:10,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104893565] [2022-11-25 22:19:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:10,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:19:10,110 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:19:10,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250938700] [2022-11-25 22:19:10,110 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-25 22:19:10,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:19:10,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:10,112 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:19:10,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 22:19:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:19:10,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:19:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:19:10,320 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:19:10,320 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:19:10,321 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:19:10,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:10,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 22:19:10,526 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2022-11-25 22:19:10,529 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:19:10,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:19:10 BoogieIcfgContainer [2022-11-25 22:19:10,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:19:10,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:19:10,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:19:10,564 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:19:10,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:32" (3/4) ... [2022-11-25 22:19:10,567 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:19:10,638 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a131a0fa-1db8-4d46-b35c-ce70faf5df67/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:19:10,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:19:10,639 INFO L158 Benchmark]: Toolchain (without parser) took 38536.12ms. Allocated memory was 153.1MB in the beginning and 323.0MB in the end (delta: 169.9MB). Free memory was 122.8MB in the beginning and 136.7MB in the end (delta: -14.0MB). Peak memory consumption was 157.7MB. Max. memory is 16.1GB. [2022-11-25 22:19:10,639 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:19:10,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.45ms. Allocated memory is still 153.1MB. Free memory was 122.8MB in the beginning and 112.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 22:19:10,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.78ms. Allocated memory is still 153.1MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:19:10,640 INFO L158 Benchmark]: Boogie Preprocessor took 24.28ms. Allocated memory is still 153.1MB. Free memory was 110.0MB in the beginning and 108.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:19:10,645 INFO L158 Benchmark]: RCFGBuilder took 424.39ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 93.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:19:10,650 INFO L158 Benchmark]: TraceAbstraction took 37735.74ms. Allocated memory was 153.1MB in the beginning and 323.0MB in the end (delta: 169.9MB). Free memory was 92.5MB in the beginning and 139.9MB in the end (delta: -47.3MB). Peak memory consumption was 124.2MB. Max. memory is 16.1GB. [2022-11-25 22:19:10,650 INFO L158 Benchmark]: Witness Printer took 74.36ms. Allocated memory is still 323.0MB. Free memory was 139.9MB in the beginning and 136.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:19:10,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.45ms. Allocated memory is still 153.1MB. Free memory was 122.8MB in the beginning and 112.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.78ms. Allocated memory is still 153.1MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.28ms. Allocated memory is still 153.1MB. Free memory was 110.0MB in the beginning and 108.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.39ms. Allocated memory is still 153.1MB. Free memory was 108.7MB in the beginning and 93.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 37735.74ms. Allocated memory was 153.1MB in the beginning and 323.0MB in the end (delta: 169.9MB). Free memory was 92.5MB in the beginning and 139.9MB in the end (delta: -47.3MB). Peak memory consumption was 124.2MB. Max. memory is 16.1GB. * Witness Printer took 74.36ms. Allocated memory is still 323.0MB. Free memory was 139.9MB in the beginning and 136.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L30] long long *c = malloc(sizeof(long long)*N); [L32] a[0] = 6 [L33] b[0] = 1 [L34] c[0] = 0 [L36] i=1 VAL [a={-2:0}, b={-1:0}, c={-3:0}, i=1, N=3] [L36] COND TRUE i