./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9 --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 64bit --witnessprinter.graph.data.programhash 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 --- 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-6b4ec56 [2022-11-20 19:46:25,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:46:25,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:46:25,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:46:25,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:46:25,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:46:25,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:46:25,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:46:25,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:46:25,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:46:25,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:46:25,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:46:25,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:46:25,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:46:25,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:46:25,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:46:25,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:46:25,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:46:25,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:46:25,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:46:25,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:46:25,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:46:25,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:46:25,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:46:25,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:46:25,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:46:25,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:46:25,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:46:25,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:46:25,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:46:25,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:46:25,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:46:25,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:46:25,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:46:25,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:46:25,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:46:25,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:46:25,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:46:25,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:46:25,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:46:25,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:46:25,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 19:46:25,473 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:46:25,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:46:25,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:46:25,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:46:25,478 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:46:25,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:46:25,478 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:46:25,479 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:46:25,479 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:46:25,479 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:46:25,480 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:46:25,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:46:25,481 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:46:25,481 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:46:25,481 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:46:25,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:46:25,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:46:25,482 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:46:25,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:46:25,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:46:25,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:46:25,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:46:25,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:46:25,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:46:25,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:46:25,484 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:46:25,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:46:25,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:46:25,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:46:25,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:46:25,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:46:25,486 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:46:25,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:46:25,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:46:25,486 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:46:25,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:46:25,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:46:25,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:46:25,487 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_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 [2022-11-20 19:46:25,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:46:25,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:46:25,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:46:25,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:46:25,799 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:46:25,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 19:46:28,895 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:46:29,166 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:46:29,167 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 19:46:29,176 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data/4dbf84f1d/f5a2dd43e73f4b88b583943c8187450a/FLAG0322f4acc [2022-11-20 19:46:29,190 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data/4dbf84f1d/f5a2dd43e73f4b88b583943c8187450a [2022-11-20 19:46:29,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:46:29,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:46:29,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:46:29,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:46:29,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:46:29,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796ade22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29, skipping insertion in model container [2022-11-20 19:46:29,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:46:29,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:46:29,386 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_a410c364-b649-4ea0-8991-06aa8a28b8a4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 19:46:29,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:46:29,423 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:46:29,434 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_a410c364-b649-4ea0-8991-06aa8a28b8a4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 19:46:29,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:46:29,463 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:46:29,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29 WrapperNode [2022-11-20 19:46:29,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:46:29,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:46:29,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:46:29,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:46:29,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,502 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-20 19:46:29,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:46:29,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:46:29,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:46:29,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:46:29,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,522 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:46:29,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:46:29,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:46:29,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:46:29,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (1/1) ... [2022-11-20 19:46:29,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:46:29,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:46:29,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:46:29,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:46:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:46:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:46:29,680 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:46:29,682 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:46:29,915 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:46:29,935 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:46:29,935 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 19:46:29,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:46:29 BoogieIcfgContainer [2022-11-20 19:46:29,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:46:29,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:46:29,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:46:29,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:46:29,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:46:29" (1/3) ... [2022-11-20 19:46:29,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa20c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:46:29, skipping insertion in model container [2022-11-20 19:46:29,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:29" (2/3) ... [2022-11-20 19:46:29,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa20c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:46:29, skipping insertion in model container [2022-11-20 19:46:29,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:46:29" (3/3) ... [2022-11-20 19:46:29,977 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2022-11-20 19:46:30,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:46:30,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 19:46:30,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:46:30,068 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;@3c83a9c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:46:30,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 19:46:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2022-11-20 19:46:30,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 19:46:30,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:46:30,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 19:46:30,108 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:46:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:46:30,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-20 19:46:30,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:46:30,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819720579] [2022-11-20 19:46:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:46:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:46:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 19:46:30,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 19:46:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 19:46:30,338 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-20 19:46:30,340 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 19:46:30,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 19:46:30,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 19:46:30,348 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 19:46:30,352 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 19:46:30,372 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:46:30,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:46:30 BoogieIcfgContainer [2022-11-20 19:46:30,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 19:46:30,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 19:46:30,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 19:46:30,380 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 19:46:30,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:46:29" (3/4) ... [2022-11-20 19:46:30,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 19:46:30,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 19:46:30,385 INFO L158 Benchmark]: Toolchain (without parser) took 1191.33ms. Allocated memory is still 130.0MB. Free memory was 97.5MB in the beginning and 53.1MB in the end (delta: 44.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-20 19:46:30,386 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:46:30,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.90ms. Allocated memory is still 130.0MB. Free memory was 97.0MB in the beginning and 86.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 19:46:30,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.98ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 84.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:46:30,388 INFO L158 Benchmark]: Boogie Preprocessor took 22.66ms. Allocated memory is still 130.0MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:46:30,389 INFO L158 Benchmark]: RCFGBuilder took 442.30ms. Allocated memory is still 130.0MB. Free memory was 83.4MB in the beginning and 70.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 19:46:30,389 INFO L158 Benchmark]: TraceAbstraction took 408.66ms. Allocated memory is still 130.0MB. Free memory was 69.9MB in the beginning and 53.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 19:46:30,390 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 130.0MB. Free memory was 53.6MB in the beginning and 53.1MB in the end (delta: 466.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:46:30,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.90ms. Allocated memory is still 130.0MB. Free memory was 97.0MB in the beginning and 86.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.98ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 84.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.66ms. Allocated memory is still 130.0MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.30ms. Allocated memory is still 130.0MB. Free memory was 83.4MB in the beginning and 70.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 408.66ms. Allocated memory is still 130.0MB. Free memory was 69.9MB in the beginning and 53.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 130.0MB. Free memory was 53.6MB in the beginning and 53.1MB in the end (delta: 466.1kB). There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 59, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L31] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L32] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_4 var_8 = 6; [L36] const SORT_1 var_14 = 1; [L37] const SORT_19 var_21 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] SORT_4 init_7_arg_1 = var_5; [L46] state_6 = init_7_arg_1 [L47] SORT_4 init_10_arg_1 = var_8; [L48] state_9 = init_10_arg_1 VAL [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 19:46:30,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9 --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 64bit --witnessprinter.graph.data.programhash 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 --- 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-6b4ec56 [2022-11-20 19:46:32,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:46:32,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:46:33,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:46:33,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:46:33,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:46:33,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:46:33,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:46:33,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:46:33,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:46:33,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:46:33,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:46:33,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:46:33,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:46:33,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:46:33,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:46:33,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:46:33,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:46:33,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:46:33,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:46:33,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:46:33,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:46:33,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:46:33,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:46:33,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:46:33,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:46:33,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:46:33,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:46:33,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:46:33,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:46:33,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:46:33,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:46:33,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:46:33,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:46:33,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:46:33,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:46:33,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:46:33,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:46:33,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:46:33,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:46:33,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:46:33,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 19:46:33,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:46:33,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:46:33,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:46:33,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:46:33,140 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:46:33,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:46:33,140 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:46:33,141 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:46:33,141 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:46:33,141 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:46:33,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:46:33,143 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:46:33,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:46:33,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:46:33,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:46:33,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:46:33,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:46:33,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 19:46:33,146 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 19:46:33,146 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 19:46:33,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:46:33,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:46:33,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:46:33,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:46:33,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 19:46:33,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:46:33,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:46:33,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:46:33,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:46:33,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:46:33,150 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 19:46:33,150 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 19:46:33,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:46:33,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:46:33,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 19:46:33,151 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 [2022-11-20 19:46:33,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:46:33,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:46:33,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:46:33,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:46:33,614 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:46:33,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 19:46:36,601 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:46:36,904 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:46:36,905 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-20 19:46:36,912 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data/af42652bd/8df9d486431e4cb4bd56cc06fd4dba90/FLAG53a2a6ac0 [2022-11-20 19:46:36,930 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/data/af42652bd/8df9d486431e4cb4bd56cc06fd4dba90 [2022-11-20 19:46:36,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:46:36,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:46:36,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:46:36,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:46:36,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:46:36,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:46:36" (1/1) ... [2022-11-20 19:46:36,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a471e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:36, skipping insertion in model container [2022-11-20 19:46:36,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:46:36" (1/1) ... [2022-11-20 19:46:36,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:46:36,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:46:37,120 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_a410c364-b649-4ea0-8991-06aa8a28b8a4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 19:46:37,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:46:37,166 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:46:37,177 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_a410c364-b649-4ea0-8991-06aa8a28b8a4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-20 19:46:37,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:46:37,207 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:46:37,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37 WrapperNode [2022-11-20 19:46:37,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:46:37,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:46:37,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:46:37,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:46:37,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,246 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-20 19:46:37,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:46:37,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:46:37,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:46:37,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:46:37,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,270 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:46:37,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:46:37,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:46:37,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:46:37,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (1/1) ... [2022-11-20 19:46:37,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:46:37,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:46:37,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:46:37,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:46:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:46:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:46:37,515 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:46:37,517 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:46:37,746 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:46:37,753 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:46:37,767 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 19:46:37,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:46:37 BoogieIcfgContainer [2022-11-20 19:46:37,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:46:37,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:46:37,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:46:37,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:46:37,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:46:36" (1/3) ... [2022-11-20 19:46:37,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1354e7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:46:37, skipping insertion in model container [2022-11-20 19:46:37,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:46:37" (2/3) ... [2022-11-20 19:46:37,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1354e7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:46:37, skipping insertion in model container [2022-11-20 19:46:37,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:46:37" (3/3) ... [2022-11-20 19:46:37,797 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2022-11-20 19:46:37,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:46:37,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 19:46:37,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:46:37,903 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;@11c9a1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:46:37,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 19:46:37,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 19:46:37,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:46:37,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 19:46:37,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:46:37,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:46:37,926 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 19:46:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:46:37,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207807316] [2022-11-20 19:46:37,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:46:37,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:37,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:46:37,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 19:46:37,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 19:46:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:46:38,063 WARN L261 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 19:46:38,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:38,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 19:46:38,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 19:46:38,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207807316] [2022-11-20 19:46:38,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207807316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:46:38,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:46:38,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 19:46:38,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516916566] [2022-11-20 19:46:38,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:46:38,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 19:46:38,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 19:46:38,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 19:46:38,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 19:46:38,356 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:46:38,404 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 19:46:38,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 19:46:38,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 19:46:38,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:46:38,418 INFO L225 Difference]: With dead ends: 20 [2022-11-20 19:46:38,419 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 19:46:38,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 19:46:38,428 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 19:46:38,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 19:46:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 19:46:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 19:46:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-11-20 19:46:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 19:46:38,465 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 19:46:38,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:46:38,466 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 19:46:38,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 19:46:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 19:46:38,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:46:38,467 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 19:46:38,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:38,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:38,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:46:38,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:46:38,679 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 19:46:38,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:46:38,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737226999] [2022-11-20 19:46:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:46:38,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:38,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:46:38,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 19:46:38,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 19:46:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:46:38,762 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-20 19:46:38,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:39,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:39,441 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 19:46:39,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737226999] [2022-11-20 19:46:39,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737226999] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:39,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [82917133] [2022-11-20 19:46:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:46:39,445 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 19:46:39,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 19:46:39,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 19:46:39,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-20 19:46:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:46:39,612 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-20 19:46:39,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:39,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:39,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [82917133] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:39,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894777513] [2022-11-20 19:46:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:46:39,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:46:39,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:46:39,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:46:39,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 19:46:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:46:40,013 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-20 19:46:40,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:40,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:40,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:40,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894777513] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:40,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 19:46:40,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-20 19:46:40,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514482261] [2022-11-20 19:46:40,416 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 19:46:40,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 19:46:40,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 19:46:40,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 19:46:40,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-20 19:46:40,419 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2022-11-20 19:46:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:46:40,517 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 19:46:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 19:46:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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 8 [2022-11-20 19:46:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:46:40,519 INFO L225 Difference]: With dead ends: 16 [2022-11-20 19:46:40,519 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 19:46:40,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-20 19:46:40,521 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 19:46:40,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 21 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2022-11-20 19:46:40,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 19:46:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 19:46:40,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:40,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 19:46:40,526 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 19:46:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:46:40,526 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 19:46:40,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2022-11-20 19:46:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 19:46:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 19:46:40,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:46:40,528 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 19:46:40,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:40,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:40,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-20 19:46:41,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:41,131 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:46:41,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:46:41,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 19:46:41,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:46:41,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401526631] [2022-11-20 19:46:41,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 19:46:41,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:41,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:46:41,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 19:46:41,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 19:46:41,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 19:46:41,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:41,213 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-20 19:46:41,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:41,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:41,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 19:46:41,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401526631] [2022-11-20 19:46:41,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401526631] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:41,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1879054573] [2022-11-20 19:46:41,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 19:46:41,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 19:46:41,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 19:46:41,824 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 19:46:41,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-20 19:46:41,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 19:46:41,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:41,964 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-20 19:46:41,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:42,136 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:42,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:42,317 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:42,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1879054573] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:42,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863941858] [2022-11-20 19:46:42,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 19:46:42,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:46:42,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:46:42,320 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:46:42,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 19:46:42,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 19:46:42,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:42,412 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-20 19:46:42,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:42,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:42,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863941858] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:42,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 19:46:42,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 12 [2022-11-20 19:46:42,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554353413] [2022-11-20 19:46:42,886 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 19:46:42,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 19:46:42,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 19:46:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 19:46:42,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-20 19:46:42,891 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:43,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:46:43,233 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-20 19:46:43,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 19:46:43,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 [2022-11-20 19:46:43,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:46:43,235 INFO L225 Difference]: With dead ends: 22 [2022-11-20 19:46:43,235 INFO L226 Difference]: Without dead ends: 20 [2022-11-20 19:46:43,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-11-20 19:46:43,237 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:46:43,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 24 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 32 Unchecked, 0.1s Time] [2022-11-20 19:46:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-20 19:46:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-20 19:46:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 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) [2022-11-20 19:46:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-20 19:46:43,243 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-20 19:46:43,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:46:43,243 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-20 19:46:43,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-20 19:46:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 19:46:43,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:46:43,244 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-20 19:46:43,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:43,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:43,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:43,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:43,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:46:43,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:46:43,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-20 19:46:43,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:46:43,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743447877] [2022-11-20 19:46:43,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 19:46:43,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:43,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:46:43,852 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 19:46:43,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 19:46:43,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 19:46:43,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:43,950 WARN L261 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 92 conjunts are in the unsatisfiable core [2022-11-20 19:46:43,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:44,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:45,258 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:45,258 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 19:46:45,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743447877] [2022-11-20 19:46:45,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743447877] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:45,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [755825428] [2022-11-20 19:46:45,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 19:46:45,260 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 19:46:45,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 19:46:45,264 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 19:46:45,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-20 19:46:45,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 19:46:45,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:45,420 WARN L261 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 92 conjunts are in the unsatisfiable core [2022-11-20 19:46:45,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:45,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:45,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [755825428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:45,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948223738] [2022-11-20 19:46:45,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 19:46:45,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:46:45,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:46:45,981 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:46:46,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 19:46:46,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 19:46:46,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:46,107 WARN L261 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-20 19:46:46,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:46,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:46,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948223738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:46,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 19:46:46,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 9, 9] total 16 [2022-11-20 19:46:46,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195100338] [2022-11-20 19:46:46,892 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 19:46:46,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 19:46:46,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 19:46:46,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 19:46:46,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-11-20 19:46:46,894 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:46:47,930 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-20 19:46:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 19:46:47,932 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-20 19:46:47,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:46:47,932 INFO L225 Difference]: With dead ends: 33 [2022-11-20 19:46:47,933 INFO L226 Difference]: Without dead ends: 31 [2022-11-20 19:46:47,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2022-11-20 19:46:47,934 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 46 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:46:47,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 26 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 53 Unchecked, 0.1s Time] [2022-11-20 19:46:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-20 19:46:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-11-20 19:46:47,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 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) [2022-11-20 19:46:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2022-11-20 19:46:47,947 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 17 [2022-11-20 19:46:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:46:47,948 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2022-11-20 19:46:47,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:46:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-11-20 19:46:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 19:46:47,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:46:47,949 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1] [2022-11-20 19:46:47,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:48,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:48,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-20 19:46:48,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 19:46:48,556 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:46:48,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:46:48,557 INFO L85 PathProgramCache]: Analyzing trace with hash 637038473, now seen corresponding path program 4 times [2022-11-20 19:46:48,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:46:48,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496233890] [2022-11-20 19:46:48,558 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 19:46:48,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:46:48,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:46:48,559 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 19:46:48,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 19:46:48,702 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 19:46:48,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:48,713 WARN L261 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 164 conjunts are in the unsatisfiable core [2022-11-20 19:46:48,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:49,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:52,397 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 19:46:52,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496233890] [2022-11-20 19:46:52,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496233890] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:52,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [870220907] [2022-11-20 19:46:52,397 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 19:46:52,398 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 19:46:52,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 19:46:52,401 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 19:46:52,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-20 19:46:52,670 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 19:46:52,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:52,683 WARN L261 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 164 conjunts are in the unsatisfiable core [2022-11-20 19:46:52,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:53,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:53,980 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:53,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [870220907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:53,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543608005] [2022-11-20 19:46:53,980 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 19:46:53,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:46:53,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:46:53,982 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:46:54,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 19:46:54,124 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 19:46:54,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 19:46:54,131 WARN L261 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 167 conjunts are in the unsatisfiable core [2022-11-20 19:46:54,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:46:54,822 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:54,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:46:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:46:55,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543608005] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:46:55,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 19:46:55,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 13, 13] total 24 [2022-11-20 19:46:55,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566506527] [2022-11-20 19:46:55,775 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 19:46:55,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 19:46:55,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 19:46:55,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 19:46:55,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-11-20 19:46:55,779 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 24 states, 24 states have (on average 2.5) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:47:00,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:47:00,186 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-11-20 19:47:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 19:47:00,186 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 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 29 [2022-11-20 19:47:00,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:47:00,188 INFO L225 Difference]: With dead ends: 66 [2022-11-20 19:47:00,188 INFO L226 Difference]: Without dead ends: 64 [2022-11-20 19:47:00,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 151 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=359, Invalid=1201, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 19:47:00,190 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 79 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 135 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 19:47:00,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 123 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 236 Invalid, 0 Unknown, 135 Unchecked, 0.4s Time] [2022-11-20 19:47:00,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-20 19:47:00,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2022-11-20 19:47:00,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 56 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:47:00,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2022-11-20 19:47:00,209 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 29 [2022-11-20 19:47:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:47:00,210 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2022-11-20 19:47:00,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.5) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:47:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2022-11-20 19:47:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 19:47:00,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:47:00,211 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1] [2022-11-20 19:47:00,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 19:47:00,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 19:47:00,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-20 19:47:00,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 19:47:00,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:47:00,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:47:00,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1244940003, now seen corresponding path program 5 times [2022-11-20 19:47:00,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:47:00,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809603497] [2022-11-20 19:47:00,826 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 19:47:00,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:47:00,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:47:00,827 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 19:47:00,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 19:47:01,110 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2022-11-20 19:47:01,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-20 19:47:01,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 19:47:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 19:47:01,359 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-20 19:47:01,359 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 19:47:01,360 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 19:47:01,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 19:47:01,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 19:47:01,579 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1] [2022-11-20 19:47:01,583 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 19:47:01,664 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,669 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,669 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,670 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,670 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,670 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,670 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,670 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,670 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,670 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,671 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,671 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,671 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,671 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:47:01 BoogieIcfgContainer [2022-11-20 19:47:01,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 19:47:01,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 19:47:01,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 19:47:01,707 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 19:47:01,708 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:46:37" (3/4) ... [2022-11-20 19:47:01,710 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 19:47:01,742 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,753 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,754 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,754 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,754 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,754 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,754 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,754 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,755 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,755 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,755 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,755 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,755 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,755 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 19:47:01,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 19:47:01,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 19:47:01,881 INFO L158 Benchmark]: Toolchain (without parser) took 24946.99ms. Allocated memory was 77.6MB in the beginning and 237.0MB in the end (delta: 159.4MB). Free memory was 56.0MB in the beginning and 142.2MB in the end (delta: -86.2MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-11-20 19:47:01,881 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:47:01,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.45ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 44.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 19:47:01,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.75ms. Allocated memory is still 77.6MB. Free memory was 44.7MB in the beginning and 43.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:47:01,882 INFO L158 Benchmark]: Boogie Preprocessor took 26.41ms. Allocated memory is still 77.6MB. Free memory was 43.1MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:47:01,883 INFO L158 Benchmark]: RCFGBuilder took 495.23ms. Allocated memory is still 77.6MB. Free memory was 41.7MB in the beginning and 50.2MB in the end (delta: -8.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-20 19:47:01,883 INFO L158 Benchmark]: TraceAbstraction took 23935.00ms. Allocated memory was 77.6MB in the beginning and 237.0MB in the end (delta: 159.4MB). Free memory was 49.8MB in the beginning and 154.8MB in the end (delta: -105.0MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2022-11-20 19:47:01,884 INFO L158 Benchmark]: Witness Printer took 173.51ms. Allocated memory is still 237.0MB. Free memory was 154.8MB in the beginning and 142.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 19:47:01,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.45ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 44.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.75ms. Allocated memory is still 77.6MB. Free memory was 44.7MB in the beginning and 43.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.41ms. Allocated memory is still 77.6MB. Free memory was 43.1MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 495.23ms. Allocated memory is still 77.6MB. Free memory was 41.7MB in the beginning and 50.2MB in the end (delta: -8.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23935.00ms. Allocated memory was 77.6MB in the beginning and 237.0MB in the end (delta: 159.4MB). Free memory was 49.8MB in the beginning and 154.8MB in the end (delta: -105.0MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. * Witness Printer took 173.51ms. Allocated memory is still 237.0MB. Free memory was 154.8MB in the beginning and 142.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 20]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L31] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L32] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_4 var_8 = 6; [L36] const SORT_1 var_14 = 1; [L37] const SORT_19 var_21 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] SORT_4 init_7_arg_1 = var_5; [L46] state_6 = init_7_arg_1 [L47] SORT_4 init_10_arg_1 = var_8; [L48] state_9 = init_10_arg_1 VAL [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=3, input_3=5, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=2, next_28_arg_1=8, state_6=2, state_9=8, var_11=1, var_11_arg_0=0, var_11_arg_1=6, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=0, var_20_arg_0=0, var_21=2, var_22=2, var_22_arg_0=0, var_22_arg_1=2, var_23=2, var_23_arg_0=2, var_25=6, var_25_arg_0=6, var_26=8, var_26_arg_0=6, var_26_arg_1=2, var_27=8, var_27_arg_0=8, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=7, input_3=9, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=4, next_28_arg_1=10, state_6=4, state_9=10, var_11=1, var_11_arg_0=2, var_11_arg_1=8, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=2, var_20_arg_0=2, var_21=2, var_22=4, var_22_arg_0=2, var_22_arg_1=2, var_23=4, var_23_arg_0=4, var_25=8, var_25_arg_0=8, var_26=10, var_26_arg_0=8, var_26_arg_1=2, var_27=10, var_27_arg_0=10, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=11, input_3=13, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=6, next_28_arg_1=12, state_6=6, state_9=12, var_11=1, var_11_arg_0=4, var_11_arg_1=10, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=4, var_20_arg_0=4, var_21=2, var_22=6, var_22_arg_0=4, var_22_arg_1=2, var_23=6, var_23_arg_0=6, var_25=10, var_25_arg_0=10, var_26=12, var_26_arg_0=10, var_26_arg_1=2, var_27=12, var_27_arg_0=12, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=15, input_3=17, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=8, next_28_arg_1=14, state_6=8, state_9=14, var_11=1, var_11_arg_0=6, var_11_arg_1=12, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=6, var_20_arg_0=6, var_21=2, var_22=8, var_22_arg_0=6, var_22_arg_1=2, var_23=8, var_23_arg_0=8, var_25=12, var_25_arg_0=12, var_26=14, var_26_arg_0=12, var_26_arg_1=2, var_27=14, var_27_arg_0=14, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=19, input_3=21, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=10, next_28_arg_1=16, state_6=10, state_9=16, var_11=1, var_11_arg_0=8, var_11_arg_1=14, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=8, var_20_arg_0=8, var_21=2, var_22=10, var_22_arg_0=8, var_22_arg_1=2, var_23=10, var_23_arg_0=10, var_25=14, var_25_arg_0=14, var_26=16, var_26_arg_0=14, var_26_arg_1=2, var_27=16, var_27_arg_0=16, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=23, input_3=25, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=12, next_28_arg_1=18, state_6=12, state_9=18, var_11=1, var_11_arg_0=10, var_11_arg_1=16, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=10, var_20_arg_0=10, var_21=2, var_22=12, var_22_arg_0=10, var_22_arg_1=2, var_23=12, var_23_arg_0=12, var_25=16, var_25_arg_0=16, var_26=18, var_26_arg_0=16, var_26_arg_1=2, var_27=18, var_27_arg_0=18, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=27, input_3=29, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=14, next_28_arg_1=20, state_6=14, state_9=20, var_11=1, var_11_arg_0=12, var_11_arg_1=18, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=12, var_20_arg_0=12, var_21=2, var_22=14, var_22_arg_0=12, var_22_arg_1=2, var_23=14, var_23_arg_0=14, var_25=18, var_25_arg_0=18, var_26=20, var_26_arg_0=18, var_26_arg_1=2, var_27=20, var_27_arg_0=20, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=33, input_3=34, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=16, next_28_arg_1=22, state_6=16, state_9=22, var_11=1, var_11_arg_0=14, var_11_arg_1=20, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=14, var_20_arg_0=14, var_21=2, var_22=16, var_22_arg_0=14, var_22_arg_1=2, var_23=16, var_23_arg_0=16, var_25=20, var_25_arg_0=20, var_26=22, var_26_arg_0=20, var_26_arg_1=2, var_27=22, var_27_arg_0=22, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=35, input_3=36, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=18, next_28_arg_1=24, state_6=18, state_9=24, var_11=1, var_11_arg_0=16, var_11_arg_1=22, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=16, var_20_arg_0=16, var_21=2, var_22=18, var_22_arg_0=16, var_22_arg_1=2, var_23=18, var_23_arg_0=18, var_25=22, var_25_arg_0=22, var_26=24, var_26_arg_0=22, var_26_arg_1=2, var_27=24, var_27_arg_0=24, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=37, input_3=38, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=20, next_28_arg_1=26, state_6=20, state_9=26, var_11=1, var_11_arg_0=18, var_11_arg_1=24, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=18, var_20_arg_0=18, var_21=2, var_22=20, var_22_arg_0=18, var_22_arg_1=2, var_23=20, var_23_arg_0=20, var_25=24, var_25_arg_0=24, var_26=26, var_26_arg_0=24, var_26_arg_1=2, var_27=26, var_27_arg_0=26, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=39, input_3=40, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=22, next_28_arg_1=28, state_6=22, state_9=28, var_11=1, var_11_arg_0=20, var_11_arg_1=26, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=20, var_20_arg_0=20, var_21=2, var_22=22, var_22_arg_0=20, var_22_arg_1=2, var_23=22, var_23_arg_0=22, var_25=26, var_25_arg_0=26, var_26=28, var_26_arg_0=26, var_26_arg_1=2, var_27=28, var_27_arg_0=28, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=41, input_3=42, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=24, next_28_arg_1=30, state_6=24, state_9=30, var_11=1, var_11_arg_0=22, var_11_arg_1=28, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=22, var_20_arg_0=22, var_21=2, var_22=24, var_22_arg_0=22, var_22_arg_1=2, var_23=24, var_23_arg_0=24, var_25=28, var_25_arg_0=28, var_26=30, var_26_arg_0=28, var_26_arg_1=2, var_27=30, var_27_arg_0=30, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=43, input_3=44, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=26, next_28_arg_1=0, state_6=26, state_9=0, var_11=1, var_11_arg_0=24, var_11_arg_1=30, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=24, var_20_arg_0=24, var_21=2, var_22=26, var_22_arg_0=24, var_22_arg_1=2, var_23=26, var_23_arg_0=26, var_25=30, var_25_arg_0=30, var_26=32, var_26_arg_0=30, var_26_arg_1=2, var_27=0, var_27_arg_0=32, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.7s, OverallIterations: 6, TraceHistogramMax: 14, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 158 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 207 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 231 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 367 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 25 mSDtfsCounter, 367 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 416 GetRequests, 317 SyntacticMatches, 10 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=5, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 370 ConstructedInterpolants, 147 QuantifiedInterpolants, 27851 SizeOfPredicates, 977 NumberOfNonLiveVariables, 1856 ConjunctsInSsa, 1080 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 0/810 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 19:47:01,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a410c364-b649-4ea0-8991-06aa8a28b8a4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE