./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba --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 347032abdcb13191d63b716e25ce8d55c6ba9687c92a24e2ca0f1a12d6742496 --- 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-b5237d8 [2022-11-22 00:12:33,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:12:33,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:12:33,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:12:33,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:12:33,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:12:33,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:12:33,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:12:33,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:12:33,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:12:33,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:12:33,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:12:33,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:12:33,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:12:33,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:12:33,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:12:33,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:12:33,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:12:33,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:12:33,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:12:33,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:12:33,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:12:33,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:12:33,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:12:33,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:12:33,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:12:33,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:12:33,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:12:33,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:12:33,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:12:33,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:12:33,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:12:33,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:12:33,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:12:33,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:12:33,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:12:33,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:12:33,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:12:33,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:12:33,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:12:33,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:12:33,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:12:33,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:12:33,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:12:33,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:12:33,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:12:33,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:12:33,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:12:33,704 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:12:33,704 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:12:33,704 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:12:33,705 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:12:33,706 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:12:33,706 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:12:33,706 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:12:33,706 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:12:33,707 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:12:33,707 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:12:33,707 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:12:33,707 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:12:33,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:12:33,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:12:33,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:12:33,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:12:33,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:12:33,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:12:33,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:12:33,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:12:33,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:12:33,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:12:33,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:12:33,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:12:33,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:12:33,711 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:12:33,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:12:33,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:12:33,712 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:12:33,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:12:33,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:12:33,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:12:33,713 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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 347032abdcb13191d63b716e25ce8d55c6ba9687c92a24e2ca0f1a12d6742496 [2022-11-22 00:12:34,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:12:34,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:12:34,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:12:34,062 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:12:34,062 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:12:34,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2022-11-22 00:12:37,112 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:12:37,418 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:12:37,419 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2022-11-22 00:12:37,439 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data/04e53647f/5db045eeb38842a38f1b8f9e67ea880a/FLAG2a1b8debd [2022-11-22 00:12:37,457 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data/04e53647f/5db045eeb38842a38f1b8f9e67ea880a [2022-11-22 00:12:37,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:12:37,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:12:37,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:12:37,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:12:37,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:12:37,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:12:37" (1/1) ... [2022-11-22 00:12:37,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11266bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:37, skipping insertion in model container [2022-11-22 00:12:37,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:12:37" (1/1) ... [2022-11-22 00:12:37,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:12:37,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:12:37,740 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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1107,1120] [2022-11-22 00:12:37,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:12:37,964 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:12:37,975 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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1107,1120] [2022-11-22 00:12:38,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:12:38,047 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:12:38,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38 WrapperNode [2022-11-22 00:12:38,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:12:38,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:12:38,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:12:38,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:12:38,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,143 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 534 [2022-11-22 00:12:38,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:12:38,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:12:38,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:12:38,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:12:38,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,188 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:12:38,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:12:38,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:12:38,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:12:38,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (1/1) ... [2022-11-22 00:12:38,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:12:38,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:12:38,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:12:38,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:12:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:12:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:12:38,551 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:12:38,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:12:44,221 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:12:44,240 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:12:44,240 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:12:44,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:12:44 BoogieIcfgContainer [2022-11-22 00:12:44,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:12:44,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:12:44,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:12:44,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:12:44,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:12:37" (1/3) ... [2022-11-22 00:12:44,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72257981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:12:44, skipping insertion in model container [2022-11-22 00:12:44,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:38" (2/3) ... [2022-11-22 00:12:44,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72257981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:12:44, skipping insertion in model container [2022-11-22 00:12:44,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:12:44" (3/3) ... [2022-11-22 00:12:44,252 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex.c [2022-11-22 00:12:44,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:12:44,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:12:44,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:12:44,324 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;@1e5ec7cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:12:44,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:12:44,329 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) [2022-11-22 00:12:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:12:44,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:12:44,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:12:44,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:12:44,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:12:44,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-22 00:12:44,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:12:44,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747122764] [2022-11-22 00:12:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:44,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:12:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:12:44,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:12:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:12:44,693 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:12:44,695 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:12:44,696 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 00:12:44,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:12:44,703 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 00:12:44,708 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:12:44,735 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 00:12:44,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:12:44 BoogieIcfgContainer [2022-11-22 00:12:44,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:12:44,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:12:44,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:12:44,749 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:12:44,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:12:44" (3/4) ... [2022-11-22 00:12:44,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:12:44,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:12:44,756 INFO L158 Benchmark]: Toolchain (without parser) took 7294.31ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 132.0MB in the beginning and 196.2MB in the end (delta: -64.2MB). Peak memory consumption was 121.1MB. Max. memory is 16.1GB. [2022-11-22 00:12:44,757 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 167.8MB. Free memory was 134.7MB in the beginning and 134.7MB in the end (delta: 20.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:12:44,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.86ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 109.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 00:12:44,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.09ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 103.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 00:12:44,764 INFO L158 Benchmark]: Boogie Preprocessor took 53.54ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 99.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:12:44,765 INFO L158 Benchmark]: RCFGBuilder took 6045.17ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 99.7MB in the beginning and 219.3MB in the end (delta: -119.5MB). Peak memory consumption was 184.4MB. Max. memory is 16.1GB. [2022-11-22 00:12:44,767 INFO L158 Benchmark]: TraceAbstraction took 501.21ms. Allocated memory is still 352.3MB. Free memory was 218.2MB in the beginning and 196.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 00:12:44,767 INFO L158 Benchmark]: Witness Printer took 6.66ms. Allocated memory is still 352.3MB. Free memory is still 196.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:12:44,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 167.8MB. Free memory was 134.7MB in the beginning and 134.7MB in the end (delta: 20.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.86ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 109.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.09ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 103.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.54ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 99.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6045.17ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 99.7MB in the beginning and 219.3MB in the end (delta: -119.5MB). Peak memory consumption was 184.4MB. Max. memory is 16.1GB. * TraceAbstraction took 501.21ms. Allocated memory is still 352.3MB. Free memory was 218.2MB in the beginning and 196.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 6.66ms. Allocated memory is still 352.3MB. Free memory is still 196.2MB. 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 92, overapproximation of bitwiseAnd at line 82. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 8); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (8 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L31] const SORT_5 var_7 = 0; [L32] const SORT_5 var_13 = 1; [L33] const SORT_1 var_33 = 0; [L34] const SORT_1 var_42 = 4; [L35] const SORT_1 var_54 = 5; [L36] const SORT_1 var_193 = 3; [L37] const SORT_1 var_199 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L41] SORT_1 input_4; [L42] SORT_5 input_6; [L43] SORT_1 input_38; [L45] SORT_5 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L46] SORT_5 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] SORT_5 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L48] SORT_5 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L49] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_5 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] SORT_5 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L52] SORT_5 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L53] SORT_5 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L54] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L55] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_5 init_9_arg_1 = var_7; [L58] state_8 = init_9_arg_1 [L59] SORT_5 init_18_arg_1 = var_13; [L60] state_17 = init_18_arg_1 [L61] SORT_5 init_20_arg_1 = var_7; [L62] state_19 = init_20_arg_1 [L63] SORT_5 init_22_arg_1 = var_7; [L64] state_21 = init_22_arg_1 [L65] SORT_5 init_24_arg_1 = var_7; [L66] state_23 = init_24_arg_1 [L67] SORT_5 init_26_arg_1 = var_7; [L68] state_25 = init_26_arg_1 [L69] SORT_5 init_28_arg_1 = var_7; [L70] state_27 = init_28_arg_1 [L71] SORT_5 init_30_arg_1 = var_7; [L72] state_29 = init_30_arg_1 [L73] SORT_5 init_32_arg_1 = var_13; [L74] state_31 = init_32_arg_1 [L75] SORT_1 init_35_arg_1 = var_33; [L76] state_34 = init_35_arg_1 [L77] SORT_1 init_37_arg_1 = var_33; [L78] state_36 = init_37_arg_1 VAL [init_18_arg_1=1, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=1, init_35_arg_1=0, init_37_arg_1=0, init_9_arg_1=0, mask_SORT_1=255, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_5=1, state_17=1, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=1, state_34=0, state_36=0, state_8=0, var_13=1, var_193=3, var_199=2, var_33=0, var_42=4, var_54=5, var_7=0] [L81] input_2 = __VERIFIER_nondet_uchar() [L82] input_2 = input_2 & mask_SORT_1 [L83] input_3 = __VERIFIER_nondet_uchar() [L84] input_3 = input_3 & mask_SORT_1 [L85] input_4 = __VERIFIER_nondet_uchar() [L86] input_4 = input_4 & mask_SORT_1 [L87] input_6 = __VERIFIER_nondet_uchar() [L88] input_38 = __VERIFIER_nondet_uchar() [L91] SORT_5 var_10_arg_0 = state_8; [L92] SORT_5 var_10 = ~var_10_arg_0; [L93] SORT_5 var_14_arg_0 = var_10; [L94] SORT_5 var_14 = ~var_14_arg_0; [L95] SORT_5 var_15_arg_0 = var_13; [L96] SORT_5 var_15_arg_1 = var_14; [L97] SORT_5 var_15 = var_15_arg_0 & var_15_arg_1; [L98] var_15 = var_15 & mask_SORT_5 [L99] SORT_5 bad_16_arg_0 = var_15; [L100] CALL __VERIFIER_assert(!(bad_16_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: 0.4s, 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 [2022-11-22 00:12:44,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba --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 347032abdcb13191d63b716e25ce8d55c6ba9687c92a24e2ca0f1a12d6742496 --- 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-b5237d8 [2022-11-22 00:12:47,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:12:47,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:12:47,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:12:47,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:12:47,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:12:47,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:12:47,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:12:47,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:12:47,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:12:47,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:12:47,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:12:47,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:12:47,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:12:47,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:12:47,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:12:47,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:12:47,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:12:47,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:12:47,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:12:47,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:12:47,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:12:47,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:12:47,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:12:47,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:12:47,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:12:47,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:12:47,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:12:47,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:12:47,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:12:47,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:12:47,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:12:47,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:12:47,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:12:47,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:12:47,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:12:47,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:12:47,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:12:47,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:12:47,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:12:47,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:12:47,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 00:12:47,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:12:47,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:12:47,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:12:47,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:12:47,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:12:47,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:12:47,589 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:12:47,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:12:47,589 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:12:47,590 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:12:47,591 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:12:47,591 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:12:47,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:12:47,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:12:47,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:12:47,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:12:47,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:12:47,593 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 00:12:47,593 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 00:12:47,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 00:12:47,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:12:47,594 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:12:47,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:12:47,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:12:47,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 00:12:47,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:12:47,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:12:47,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:12:47,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:12:47,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:12:47,596 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 00:12:47,596 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 00:12:47,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:12:47,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:12:47,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 00:12:47,598 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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 347032abdcb13191d63b716e25ce8d55c6ba9687c92a24e2ca0f1a12d6742496 [2022-11-22 00:12:48,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:12:48,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:12:48,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:12:48,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:12:48,057 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:12:48,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2022-11-22 00:12:51,373 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:12:51,626 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:12:51,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c [2022-11-22 00:12:51,636 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data/edc91d11c/92df6b30bd1c4127b3f3621530edcddd/FLAG04e72b24b [2022-11-22 00:12:51,656 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/data/edc91d11c/92df6b30bd1c4127b3f3621530edcddd [2022-11-22 00:12:51,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:12:51,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:12:51,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:12:51,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:12:51,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:12:51,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:12:51" (1/1) ... [2022-11-22 00:12:51,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fbfaed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:51, skipping insertion in model container [2022-11-22 00:12:51,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:12:51" (1/1) ... [2022-11-22 00:12:51,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:12:51,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:12:51,881 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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1107,1120] [2022-11-22 00:12:52,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:12:52,050 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:12:52,061 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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex.c[1107,1120] [2022-11-22 00:12:52,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:12:52,147 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:12:52,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52 WrapperNode [2022-11-22 00:12:52,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:12:52,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:12:52,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:12:52,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:12:52,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,247 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 534 [2022-11-22 00:12:52,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:12:52,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:12:52,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:12:52,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:12:52,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,298 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:12:52,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:12:52,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:12:52,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:12:52,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (1/1) ... [2022-11-22 00:12:52,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:12:52,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:12:52,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:12:52,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:12:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:12:52,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:12:52,664 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:12:52,667 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:12:53,373 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:12:53,380 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:12:53,381 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:12:53,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:12:53 BoogieIcfgContainer [2022-11-22 00:12:53,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:12:53,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:12:53,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:12:53,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:12:53,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:12:51" (1/3) ... [2022-11-22 00:12:53,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e698fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:12:53, skipping insertion in model container [2022-11-22 00:12:53,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:12:52" (2/3) ... [2022-11-22 00:12:53,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e698fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:12:53, skipping insertion in model container [2022-11-22 00:12:53,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:12:53" (3/3) ... [2022-11-22 00:12:53,392 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex.c [2022-11-22 00:12:53,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:12:53,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:12:53,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:12:53,483 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;@7746dddc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:12:53,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:12:53,488 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) [2022-11-22 00:12:53,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:12:53,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:12:53,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:12:53,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:12:53,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:12:53,506 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 00:12:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:12:53,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255342664] [2022-11-22 00:12:53,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:53,527 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 [2022-11-22 00:12:53,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:12:53,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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) [2022-11-22 00:12:53,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:12:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:53,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-22 00:12:53,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:12:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:53,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:12:53,890 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:12:53,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255342664] [2022-11-22 00:12:53,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255342664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:12:53,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:12:53,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:12:53,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405702359] [2022-11-22 00:12:53,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:12:53,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:12:53,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:12:53,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:12:53,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:12:53,951 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) [2022-11-22 00:12:54,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:12:54,063 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 00:12:54,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:12:54,067 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 [2022-11-22 00:12:54,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:12:54,076 INFO L225 Difference]: With dead ends: 20 [2022-11-22 00:12:54,076 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 00:12:54,079 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 [2022-11-22 00:12:54,083 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:12:54,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:12:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 00:12:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 00:12:54,115 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) [2022-11-22 00:12:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 00:12:54,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 00:12:54,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:12:54,117 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 00:12:54,118 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) [2022-11-22 00:12:54,118 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 00:12:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:12:54,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:12:54,119 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 00:12:54,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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)] Ended with exit code 0 [2022-11-22 00:12:54,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:12:54,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:12:54,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:12:54,331 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 00:12:54,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:12:54,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56664660] [2022-11-22 00:12:54,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:54,334 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 [2022-11-22 00:12:54,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:12:54,336 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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) [2022-11-22 00:12:54,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:12:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:54,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-22 00:12:54,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:12:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:54,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:12:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:55,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:12:55,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56664660] [2022-11-22 00:12:55,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56664660] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:12:55,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1023354264] [2022-11-22 00:12:55,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:55,292 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:12:55,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:12:55,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:12:55,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 00:12:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:55,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-22 00:12:55,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:12:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:55,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:12:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:56,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1023354264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:12:56,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857774041] [2022-11-22 00:12:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:56,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:12:56,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:12:56,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:12:56,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:12:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:56,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 00:12:56,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:12:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:56,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:12:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:56,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857774041] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:12:56,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 00:12:56,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-22 00:12:56,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452762167] [2022-11-22 00:12:56,748 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 00:12:56,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 00:12:56,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:12:56,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 00:12:56,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-22 00:12:56,751 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) [2022-11-22 00:12:56,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:12:56,943 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-22 00:12:56,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:12:56,944 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 [2022-11-22 00:12:56,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:12:56,945 INFO L225 Difference]: With dead ends: 16 [2022-11-22 00:12:56,945 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 00:12:56,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-22 00:12:56,947 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:12:56,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:12:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 00:12:56,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-22 00:12:56,955 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) [2022-11-22 00:12:56,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 00:12:56,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-22 00:12:56,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:12:56,956 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 00:12:56,957 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) [2022-11-22 00:12:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 00:12:56,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:12:56,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:12:56,958 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-22 00:12:56,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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)] Forceful destruction successful, exit code 0 [2022-11-22 00:12:57,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:12:57,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:12:57,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:12:57,559 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:12:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:12:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-22 00:12:57,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:12:57,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91900681] [2022-11-22 00:12:57,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 00:12:57,562 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 [2022-11-22 00:12:57,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:12:57,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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) [2022-11-22 00:12:57,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:12:58,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 00:12:58,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:12:58,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-22 00:12:58,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:12:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:58,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:12:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:12:59,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:12:59,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91900681] [2022-11-22 00:12:59,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91900681] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:12:59,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [438704242] [2022-11-22 00:12:59,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 00:12:59,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:12:59,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:12:59,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:12:59,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 00:13:00,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 00:13:00,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:13:00,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-22 00:13:00,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:13:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:13:00,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:13:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:13:05,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [438704242] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:13:05,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712561975] [2022-11-22 00:13:05,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 00:13:05,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:13:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:13:05,948 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:13:05,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:13:06,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 00:13:06,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:13:06,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 117 conjunts are in the unsatisfiable core [2022-11-22 00:13:06,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:13:07,159 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:13:07,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:13:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:13:10,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712561975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:13:10,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 00:13:10,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 9, 9] total 21 [2022-11-22 00:13:10,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607420112] [2022-11-22 00:13:10,156 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 00:13:10,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-22 00:13:10,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:13:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-22 00:13:10,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=316, Unknown=2, NotChecked=0, Total=420 [2022-11-22 00:13:10,158 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 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) [2022-11-22 00:13:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:13:13,299 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-22 00:13:13,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:13:13,299 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 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 [2022-11-22 00:13:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:13:13,300 INFO L225 Difference]: With dead ends: 19 [2022-11-22 00:13:13,300 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 00:13:13,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=154, Invalid=444, Unknown=2, NotChecked=0, Total=600 [2022-11-22 00:13:13,302 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:13:13,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 27 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:13:13,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 00:13:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-22 00:13:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:13:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-22 00:13:13,308 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-22 00:13:13,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:13:13,308 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-22 00:13:13,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 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) [2022-11-22 00:13:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-22 00:13:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 00:13:13,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:13:13,310 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-22 00:13:13,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:13:13,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:13:13,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:13:13,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:13:13,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:13:13,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:13:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-22 00:13:13,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:13:13,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249681934] [2022-11-22 00:13:13,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:13:13,927 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 [2022-11-22 00:13:13,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:13:13,929 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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) [2022-11-22 00:13:13,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:13:14,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-22 00:13:14,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:13:14,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 215 conjunts are in the unsatisfiable core [2022-11-22 00:13:14,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:13:20,379 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:13:20,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:13:43,416 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:14:31,389 WARN L233 SmtUtils]: Spent 31.10s on a formula simplification that was a NOOP. DAG size: 634 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:14:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:32,862 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:14:32,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249681934] [2022-11-22 00:14:32,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249681934] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:14:32,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1338754802] [2022-11-22 00:14:32,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:14:32,864 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:14:32,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:14:32,867 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:14:32,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-22 00:14:34,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-22 00:14:34,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:14:34,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 268 conjunts are in the unsatisfiable core [2022-11-22 00:14:34,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:14:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:36,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:15:01,935 WARN L233 SmtUtils]: Spent 15.50s on a formula simplification. DAG size of input: 404 DAG size of output: 371 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:15:33,141 WARN L233 SmtUtils]: Spent 13.96s on a formula simplification that was a NOOP. DAG size: 653 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:15:33,884 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:33,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1338754802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:15:33,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988575793] [2022-11-22 00:15:33,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:15:33,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:33,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:33,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:15:33,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 00:15:34,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-22 00:15:34,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:15:34,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-22 00:15:34,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:15:37,362 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:37,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:16:11,573 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:16:28,593 WARN L233 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:16:28,705 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:28,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988575793] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:16:28,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 00:16:28,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 10, 10] total 31 [2022-11-22 00:16:28,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492941996] [2022-11-22 00:16:28,706 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 00:16:28,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-22 00:16:28,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:16:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-22 00:16:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=761, Unknown=36, NotChecked=0, Total=930 [2022-11-22 00:16:28,709 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 31 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:42,622 WARN L233 SmtUtils]: Spent 12.68s on a formula simplification. DAG size of input: 537 DAG size of output: 519 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:16:46,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-22 00:17:01,681 WARN L233 SmtUtils]: Spent 11.66s on a formula simplification. DAG size of input: 273 DAG size of output: 272 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:17:03,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-11-22 00:17:03,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:03,748 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-22 00:17:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 00:17:03,752 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 31 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 00:17:03,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:03,752 INFO L225 Difference]: With dead ends: 22 [2022-11-22 00:17:03,752 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 00:17:03,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 210.6s TimeCoverageRelationStatistics Valid=221, Invalid=1002, Unknown=37, NotChecked=0, Total=1260 [2022-11-22 00:17:03,754 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 64 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:03,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 47 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 67 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-11-22 00:17:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 00:17:03,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-22 00:17:03,766 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) [2022-11-22 00:17:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-22 00:17:03,767 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-22 00:17:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:03,767 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-22 00:17:03,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 31 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:17:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-22 00:17:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 00:17:03,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:03,769 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-22 00:17:03,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:17:03,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-11-22 00:17:04,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 00:17:04,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:17:04,389 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:17:04,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-22 00:17:04,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:17:04,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298248139] [2022-11-22 00:17:04,392 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:17:04,392 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 [2022-11-22 00:17:04,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:17:04,393 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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) [2022-11-22 00:17:04,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:17:05,057 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:17:05,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:17:05,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 382 conjunts are in the unsatisfiable core [2022-11-22 00:17:05,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:17:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:17:07,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:18:44,739 WARN L233 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 710 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:18:55,389 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse54 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_7~0#1|)))) (.cse53 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|)) (.cse52 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_19~0#1|)) (.cse51 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_17~0#1|)) (.cse30 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_21~0#1|)) (.cse31 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_25~0#1|)) (.cse29 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_27~0#1|)) (.cse36 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_29~0#1|)) (.cse28 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_8~0#1|)) (.cse32 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_5~0#1|))) (let ((.cse7 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_42~0#1|)) (.cse8 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse16 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_193~0#1|)))))))))))) (.cse38 (forall ((|v_ULTIMATE.start_main_~var_116_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_101_arg_1~0#1_35| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_161_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_36| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse53))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse52))) .cse51))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse30))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse31)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse29)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse36)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse28)))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_101_arg_1~0#1_35|)))))))))))))))))))))) .cse32)) (_ bv0 8))))) (.cse39 (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_32| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_32|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_32|)))))))) (_ bv0 32))))))))))))))) .cse32)) (_ bv0 8)))) (.cse0 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_19~0#1|)) (.cse24 ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse54)) .cse32))) (.cse45 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse54)))) (.cse26 ((_ zero_extend 24) ((_ extract 7 0) .cse53))) (.cse27 ((_ zero_extend 24) ((_ extract 7 0) .cse52)))) (let ((.cse6 (forall ((|v_ULTIMATE.start_main_~var_44_arg_0~0#1_30| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse27))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse30))) .cse31))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_0~0#1_30|) (_ bv1 32)))))))))))))))))) .cse32)) (_ bv0 8)))) (.cse25 (forall ((|v_ULTIMATE.start_main_~var_56_arg_1~0#1_34| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse30 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_34|))))))))))) (.cse35 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) .cse24)))) .cse45))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse51)) .cse32))))))))) (.cse15 (not .cse0)) (.cse4 (or .cse38 .cse39)) (.cse40 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_32| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_32|))))))))) .cse16)))))))))) (.cse37 (forall ((|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_46_arg_2~0#1_30| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_30|)))))))))))))) (_ bv0 8)))) (.cse18 (= |c_ULTIMATE.start_main_~state_31~0#1| (_ bv0 8)))) (let ((.cse20 (= |c_ULTIMATE.start_main_~state_23~0#1| (_ bv0 8))) (.cse19 (or (let ((.cse42 (let ((.cse47 (forall ((|v_ULTIMATE.start_main_~var_57_arg_2~0#1_33| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_57_arg_2~0#1_33|)))))))) (.cse46 (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_0~0#1_30| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_0~0#1_30|) (_ bv1 32))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|)))) .cse32)) (_ bv0 8))))) (and (or (and (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_71_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_50_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse43 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) .cse43))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_71_arg_2~0#1_33|))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|) .cse43))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse44))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|) .cse44))))) .cse32)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_2~0#1_33|))))) .cse32)))))) .cse45))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_50_arg_2~0#1_33|))) .cse32))))))))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|))))))))) .cse37) (or .cse46 (forall ((|v_ULTIMATE.start_main_~var_197_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_205_arg_2~0#1_33| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_197_arg_2~0#1_33|))))))))))))))))))))))) .cse4 (or .cse46 (forall ((|v_ULTIMATE.start_main_~var_205_arg_2~0#1_33| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_2~0#1_33|))))))))))) .cse16)))))))))) (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))))) (_ bv0 32)))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|)))) .cse32)) (_ bv0 8))) (or .cse46 (forall ((|v_ULTIMATE.start_main_~var_48_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_2~0#1_33|))))) .cse32)) (_ bv0 8))) (forall ((|v_ULTIMATE.start_main_~var_196_arg_1~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_205_arg_2~0#1_33| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_31|))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_2~0#1_33|)))))))))))))))))))))) (forall ((|v_ULTIMATE.start_main_~var_57_arg_2~0#1_33| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_57_arg_2~0#1_33|))))))))) (or .cse47 (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))))) (_ bv0 32)))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|)))) .cse32)) (_ bv0 8)))) (or .cse47 .cse38 .cse39) (or .cse47 .cse40 .cse46) (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_71_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_57_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_50_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (let ((.cse48 ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_57_arg_2~0#1_33|))))))) (or (= (_ bv0 8) .cse48) (not (= ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse49 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) .cse49))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_71_arg_2~0#1_33|))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|) .cse49))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse50 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) .cse48)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|) .cse50))))) .cse32)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_2~0#1_33|))))) .cse32)))))) .cse45))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_50_arg_2~0#1_33|))) .cse32)))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse50))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|)))))))))))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))))))))))) (_ bv0 8)))))) .cse37))))) (and (or .cse42 .cse15) (or .cse0 .cse42))) (not .cse18))) (.cse14 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_34~0#1|)))))))))))))))) (.cse2 (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse41 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse30))) .cse31))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_34|)))) .cse36))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse27))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse27 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|)))))))))))) .cse35))) (_ bv255 32)))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|))))))))) (_ bv0 8)))) .cse37)) (.cse5 (forall ((|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse27))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse30))) .cse31))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))))) (_ bv0 32))))))))))))))) .cse32)) (_ bv0 8)))) (.cse10 (forall ((|v_ULTIMATE.start_main_~var_56_arg_1~0#1_34| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse30 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_34|)))))))))))) (.cse1 (or .cse6 .cse40 .cse25)) (.cse11 (or .cse25 .cse38 .cse39)) (.cse12 (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (let ((.cse33 ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse30 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_34|)))))))))) (or (= (_ bv0 8) .cse33) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse34 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse30))) .cse31))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse34 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse27))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse27 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|)))))))))))) .cse35))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) .cse33)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_34|)))) .cse36))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse34 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|))))))))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|))))))) .cse32)) (_ bv0 8)))))) .cse37)) (.cse13 (or .cse25 (forall ((|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse27))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse30))) .cse31))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))))) (_ bv0 32))))))))))))))) .cse32)) (_ bv0 8))))) (.cse17 (= (_ bv0 8) .cse24))) (and (or (and (or (let ((.cse3 (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_196_arg_1~0#1_31| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_31|))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|)))))))))))))))))))))) .cse17)) (.cse9 (or (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse16 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|)))))))))))))))))))))) .cse6))) (and (or .cse0 (and .cse1 (or (and .cse2 .cse3 .cse4 .cse5 (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_196_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_33|))))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|))))))))))))))))))))))) .cse9) .cse10) .cse11 .cse12 .cse13)) (or (and .cse1 .cse11 .cse12 (or .cse10 (and .cse2 .cse3 (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|))))))))))))) .cse14)))))))))) .cse4 .cse5 .cse9)) .cse13) .cse15))) .cse18) .cse19) .cse20) (or (not .cse20) (and .cse19 (or .cse18 (let ((.cse22 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_36~0#1|))))))))))))))) (let ((.cse21 (or .cse6 (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 .cse16)))))))))) (.cse23 (or .cse6 .cse17 (forall ((|v_ULTIMATE.start_main_~var_196_arg_1~0#1_31| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_31|))))) .cse22))) .cse8))))))))) (and (or (and .cse1 (or (and .cse2 .cse21 .cse4 .cse5 (or .cse6 (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 .cse14))))))))) .cse23) .cse10) .cse11 .cse12 .cse13) .cse15) (or .cse0 (and (or (and .cse2 .cse21 .cse4 .cse5 .cse23 (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_196_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse7 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_33|)))))))))))))))))))))))))) .cse10) .cse1 .cse11 .cse12 .cse13))))))))))))) is different from false [2022-11-22 00:18:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2022-11-22 00:18:59,765 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:18:59,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298248139] [2022-11-22 00:18:59,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298248139] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:18:59,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1688594365] [2022-11-22 00:18:59,766 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:18:59,766 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:18:59,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:18:59,770 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:18:59,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-22 00:19:00,976 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:19:00,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:19:01,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 381 conjunts are in the unsatisfiable core [2022-11-22 00:19:01,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:19:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:19:03,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:19:22,245 WARN L233 SmtUtils]: Spent 12.95s on a formula simplification. DAG size of input: 325 DAG size of output: 260 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:21:21,340 WARN L233 SmtUtils]: Spent 1.77m on a formula simplification. DAG size of input: 739 DAG size of output: 373 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:25:32,332 WARN L233 SmtUtils]: Spent 3.89m on a formula simplification. DAG size of input: 954 DAG size of output: 480 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:25:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:33,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1688594365] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:25:33,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903579063] [2022-11-22 00:25:33,086 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:25:33,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:25:33,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:25:33,091 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:25:33,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5dfe3c6-a304-44e4-a5ee-829f0c06c1f4/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 00:25:33,625 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:25:33,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:25:33,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 390 conjunts are in the unsatisfiable core [2022-11-22 00:25:33,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:25:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:25:39,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:26:04,731 WARN L233 SmtUtils]: Spent 22.85s on a formula simplification. DAG size of input: 311 DAG size of output: 281 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:27:01,490 WARN L233 SmtUtils]: Spent 44.79s on a formula simplification. DAG size of input: 716 DAG size of output: 475 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:27:19,137 WARN L233 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 486 DAG size of output: 369 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)