./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh --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 a2ccd2ec512b7680591018c367d8a992c786836d0c6afc10d2cba8b00db088f4 --- 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-2329fc7 [2022-12-14 14:55:47,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:55:47,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:55:47,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:55:47,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:55:47,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:55:47,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:55:47,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:55:47,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:55:47,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:55:47,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:55:47,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:55:47,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:55:47,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:55:47,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:55:47,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:55:47,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:55:47,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:55:47,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:55:47,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:55:47,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:55:47,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:55:47,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:55:47,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:55:47,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:55:47,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:55:47,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:55:47,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:55:47,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:55:47,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:55:47,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:55:47,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:55:47,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:55:47,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:55:47,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:55:47,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:55:47,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:55:47,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:55:47,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:55:47,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:55:47,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:55:47,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:55:47,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:55:47,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:55:47,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:55:47,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:55:47,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:55:47,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:55:47,194 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:55:47,195 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:55:47,195 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:55:47,195 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:55:47,195 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:55:47,195 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:55:47,196 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:55:47,196 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:55:47,196 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:55:47,196 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:55:47,196 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:55:47,197 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:55:47,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:55:47,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:55:47,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:55:47,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:55:47,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:55:47,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:55:47,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:55:47,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:55:47,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:55:47,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:55:47,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:55:47,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:55:47,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:55:47,200 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:55:47,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:55:47,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:55:47,200 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:55:47,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:55:47,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:55:47,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:55:47,201 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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2ccd2ec512b7680591018c367d8a992c786836d0c6afc10d2cba8b00db088f4 [2022-12-14 14:55:47,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:55:47,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:55:47,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:55:47,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:55:47,387 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:55:47,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2022-12-14 14:55:49,957 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:55:50,181 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:55:50,181 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2022-12-14 14:55:50,192 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data/d4df38ce8/20957e0381b84876b4361ec166ab5228/FLAG87f219a06 [2022-12-14 14:55:50,203 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data/d4df38ce8/20957e0381b84876b4361ec166ab5228 [2022-12-14 14:55:50,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:55:50,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:55:50,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:55:50,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:55:50,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:55:50,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11404e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50, skipping insertion in model container [2022-12-14 14:55:50,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:55:50,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:55:50,378 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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1107,1120] [2022-12-14 14:55:50,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:55:50,603 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:55:50,611 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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1107,1120] [2022-12-14 14:55:50,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:55:50,762 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:55:50,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50 WrapperNode [2022-12-14 14:55:50,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:55:50,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:55:50,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:55:50,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:55:50,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,864 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2176 [2022-12-14 14:55:50,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:55:50,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:55:50,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:55:50,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:55:50,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:55:50,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:55:50,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:55:50,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:55:50,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (1/1) ... [2022-12-14 14:55:50,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:55:50,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:55:50,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:55:50,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:55:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:55:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:55:51,320 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:55:51,324 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:56:44,528 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:56:44,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:56:44,553 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:56:44,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:44 BoogieIcfgContainer [2022-12-14 14:56:44,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:56:44,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:56:44,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:56:44,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:56:44,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:55:50" (1/3) ... [2022-12-14 14:56:44,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e4f12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:44, skipping insertion in model container [2022-12-14 14:56:44,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:50" (2/3) ... [2022-12-14 14:56:44,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e4f12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:44, skipping insertion in model container [2022-12-14 14:56:44,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:44" (3/3) ... [2022-12-14 14:56:44,561 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal179.c [2022-12-14 14:56:44,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:56:44,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:56:44,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:56:44,614 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;@78b1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:56:44,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:56:44,617 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) [2022-12-14 14:56:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:56:44,622 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:44,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:56:44,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:44,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 14:56:44,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:44,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634256794] [2022-12-14 14:56:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:44,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:56:44,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:56:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:56:44,980 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:56:44,982 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:56:44,982 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:56:44,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:56:44,987 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:56:44,990 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:56:45,015 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 14:56:45,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:56:45 BoogieIcfgContainer [2022-12-14 14:56:45,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:56:45,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:56:45,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:56:45,029 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:56:45,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:44" (3/4) ... [2022-12-14 14:56:45,032 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:56:45,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:56:45,034 INFO L158 Benchmark]: Toolchain (without parser) took 54827.24ms. Allocated memory was 176.2MB in the beginning and 966.8MB in the end (delta: 790.6MB). Free memory was 127.2MB in the beginning and 876.0MB in the end (delta: -748.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-12-14 14:56:45,034 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:56:45,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.67ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 127.0MB in the beginning and 171.1MB in the end (delta: -44.1MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2022-12-14 14:56:45,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.36ms. Allocated memory is still 218.1MB. Free memory was 170.0MB in the beginning and 151.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 14:56:45,036 INFO L158 Benchmark]: Boogie Preprocessor took 66.80ms. Allocated memory is still 218.1MB. Free memory was 151.1MB in the beginning and 141.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 14:56:45,037 INFO L158 Benchmark]: RCFGBuilder took 53622.34ms. Allocated memory was 218.1MB in the beginning and 966.8MB in the end (delta: 748.7MB). Free memory was 141.7MB in the beginning and 356.2MB in the end (delta: -214.5MB). Peak memory consumption was 570.9MB. Max. memory is 16.1GB. [2022-12-14 14:56:45,037 INFO L158 Benchmark]: TraceAbstraction took 472.14ms. Allocated memory is still 966.8MB. Free memory was 355.1MB in the beginning and 877.1MB in the end (delta: -521.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:56:45,038 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 966.8MB. Free memory was 877.1MB in the beginning and 876.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:56:45,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.67ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 127.0MB in the beginning and 171.1MB in the end (delta: -44.1MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.36ms. Allocated memory is still 218.1MB. Free memory was 170.0MB in the beginning and 151.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.80ms. Allocated memory is still 218.1MB. Free memory was 151.1MB in the beginning and 141.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 53622.34ms. Allocated memory was 218.1MB in the beginning and 966.8MB in the end (delta: 748.7MB). Free memory was 141.7MB in the beginning and 356.2MB in the end (delta: -214.5MB). Peak memory consumption was 570.9MB. Max. memory is 16.1GB. * TraceAbstraction took 472.14ms. Allocated memory is still 966.8MB. Free memory was 355.1MB in the beginning and 877.1MB in the end (delta: -521.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 966.8MB. Free memory was 877.1MB in the beginning and 876.0MB in the end (delta: 1.0MB). 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 284, overapproximation of bitwiseOr at line 300, overapproximation of bitwiseAnd at line 216. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L34] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 3); [L35] const SORT_16 msb_SORT_16 = (SORT_16)1 << (3 - 1); [L37] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 31); [L38] const SORT_105 msb_SORT_105 = (SORT_105)1 << (31 - 1); [L40] const SORT_1 var_63 = 0; [L41] const SORT_1 var_79 = 1; [L42] const SORT_9 var_83 = 0; [L43] const SORT_9 var_87 = 3; [L44] const SORT_9 var_95 = 2; [L45] const SORT_105 var_106 = 1618477056; [L46] const SORT_105 var_109 = 1618478076; [L47] const SORT_9 var_118 = 1; [L48] const SORT_16 var_195 = 0; [L49] const SORT_16 var_199 = 2; [L50] const SORT_16 var_201 = 4; [L51] const SORT_16 var_214 = 3; [L52] const SORT_16 var_274 = 5; [L53] const SORT_16 var_276 = 7; [L54] const SORT_16 var_289 = 6; [L55] const SORT_16 var_335 = 1; [L57] SORT_1 input_2; [L58] SORT_1 input_3; [L59] SORT_1 input_4; [L60] SORT_1 input_5; [L61] SORT_1 input_6; [L62] SORT_7 input_8; [L63] SORT_9 input_10; [L64] SORT_1 input_11; [L65] SORT_7 input_12; [L66] SORT_1 input_13; [L67] SORT_1 input_14; [L68] SORT_1 input_15; [L69] SORT_16 input_17; [L70] SORT_1 input_18; [L71] SORT_1 input_19; [L72] SORT_1 input_20; [L73] SORT_1 input_21; [L74] SORT_1 input_22; [L75] SORT_1 input_23; [L76] SORT_9 input_24; [L77] SORT_9 input_25; [L78] SORT_1 input_26; [L79] SORT_1 input_27; [L80] SORT_9 input_28; [L81] SORT_9 input_29; [L82] SORT_1 input_30; [L83] SORT_1 input_31; [L84] SORT_1 input_32; [L85] SORT_1 input_33; [L86] SORT_1 input_34; [L87] SORT_1 input_35; [L88] SORT_1 input_36; [L89] SORT_9 input_37; [L90] SORT_9 input_38; [L91] SORT_1 input_39; [L92] SORT_1 input_40; [L93] SORT_1 input_41; [L94] SORT_1 input_42; [L95] SORT_1 input_43; [L96] SORT_1 input_44; [L97] SORT_1 input_45; [L98] SORT_1 input_46; [L99] SORT_1 input_47; [L100] SORT_1 input_48; [L101] SORT_9 input_49; [L102] SORT_9 input_50; [L103] SORT_1 input_51; [L104] SORT_1 input_52; [L105] SORT_1 input_53; [L106] SORT_1 input_54; [L107] SORT_9 input_55; [L108] SORT_9 input_56; [L109] SORT_9 input_57; [L110] SORT_9 input_58; [L111] SORT_1 input_59; [L112] SORT_1 input_60; [L113] SORT_16 input_61; [L114] SORT_16 input_62; [L116] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_9 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L121] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_9 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L124] SORT_9 state_127 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L125] SORT_1 state_130 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_9 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L127] SORT_1 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_182 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_185 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_16 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L131] SORT_1 state_261 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_264 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_313 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_9 state_397 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L135] SORT_1 state_401 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_408 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_9 state_415 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L138] SORT_9 state_426 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L139] SORT_1 state_429 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L140] SORT_9 state_434 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L141] SORT_1 state_441 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L142] SORT_1 state_472 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_1 state_475 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] SORT_16 state_485 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L145] SORT_1 state_547 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_1 state_550 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] SORT_1 state_596 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] SORT_1 init_65_arg_1 = var_63; [L150] state_64 = init_65_arg_1 [L151] SORT_1 init_68_arg_1 = var_63; [L152] state_67 = init_68_arg_1 [L153] SORT_1 init_70_arg_1 = var_63; [L154] state_69 = init_70_arg_1 [L155] SORT_1 init_73_arg_1 = var_63; [L156] state_72 = init_73_arg_1 [L157] SORT_9 init_85_arg_1 = var_83; [L158] state_84 = init_85_arg_1 [L159] SORT_1 init_90_arg_1 = var_63; [L160] state_89 = init_90_arg_1 [L161] SORT_1 init_98_arg_1 = var_63; [L162] state_97 = init_98_arg_1 [L163] SORT_9 init_116_arg_1 = var_83; [L164] state_115 = init_116_arg_1 [L165] SORT_9 init_128_arg_1 = var_83; [L166] state_127 = init_128_arg_1 [L167] SORT_1 init_131_arg_1 = var_63; [L168] state_130 = init_131_arg_1 [L169] SORT_9 init_136_arg_1 = var_83; [L170] state_135 = init_136_arg_1 [L171] SORT_1 init_143_arg_1 = var_63; [L172] state_142 = init_143_arg_1 [L173] SORT_1 init_183_arg_1 = var_63; [L174] state_182 = init_183_arg_1 [L175] SORT_1 init_186_arg_1 = var_63; [L176] state_185 = init_186_arg_1 [L177] SORT_16 init_197_arg_1 = var_195; [L178] state_196 = init_197_arg_1 [L179] SORT_1 init_262_arg_1 = var_63; [L180] state_261 = init_262_arg_1 [L181] SORT_1 init_265_arg_1 = var_63; [L182] state_264 = init_265_arg_1 [L183] SORT_1 init_314_arg_1 = var_63; [L184] state_313 = init_314_arg_1 [L185] SORT_9 init_398_arg_1 = var_83; [L186] state_397 = init_398_arg_1 [L187] SORT_1 init_402_arg_1 = var_63; [L188] state_401 = init_402_arg_1 [L189] SORT_1 init_409_arg_1 = var_63; [L190] state_408 = init_409_arg_1 [L191] SORT_9 init_416_arg_1 = var_83; [L192] state_415 = init_416_arg_1 [L193] SORT_9 init_427_arg_1 = var_83; [L194] state_426 = init_427_arg_1 [L195] SORT_1 init_430_arg_1 = var_63; [L196] state_429 = init_430_arg_1 [L197] SORT_9 init_435_arg_1 = var_83; [L198] state_434 = init_435_arg_1 [L199] SORT_1 init_442_arg_1 = var_63; [L200] state_441 = init_442_arg_1 [L201] SORT_1 init_473_arg_1 = var_63; [L202] state_472 = init_473_arg_1 [L203] SORT_1 init_476_arg_1 = var_63; [L204] state_475 = init_476_arg_1 [L205] SORT_16 init_486_arg_1 = var_195; [L206] state_485 = init_486_arg_1 [L207] SORT_1 init_548_arg_1 = var_63; [L208] state_547 = init_548_arg_1 [L209] SORT_1 init_551_arg_1 = var_63; [L210] state_550 = init_551_arg_1 [L211] SORT_1 init_597_arg_1 = var_63; [L212] state_596 = init_597_arg_1 VAL [init_116_arg_1=0, init_128_arg_1=0, init_131_arg_1=0, init_136_arg_1=0, init_143_arg_1=0, init_183_arg_1=0, init_186_arg_1=0, init_197_arg_1=0, init_262_arg_1=0, init_265_arg_1=0, init_314_arg_1=0, init_398_arg_1=0, init_402_arg_1=0, init_409_arg_1=0, init_416_arg_1=0, init_427_arg_1=0, init_430_arg_1=0, init_435_arg_1=0, init_442_arg_1=0, init_473_arg_1=0, init_476_arg_1=0, init_486_arg_1=0, init_548_arg_1=0, init_551_arg_1=0, init_597_arg_1=0, init_65_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_73_arg_1=0, init_85_arg_1=0, init_90_arg_1=0, init_98_arg_1=0, mask_SORT_1=1, mask_SORT_105=4294967295, mask_SORT_16=7, mask_SORT_7=4294967295, mask_SORT_9=3, msb_SORT_1=1, msb_SORT_105=1073741824, msb_SORT_16=4, msb_SORT_7=2147483648, msb_SORT_9=2, state_115=0, state_127=0, state_130=0, state_135=0, state_142=0, state_182=0, state_185=0, state_196=0, state_261=0, state_264=0, state_313=0, state_397=0, state_401=0, state_408=0, state_415=0, state_426=0, state_429=0, state_434=0, state_441=0, state_472=0, state_475=0, state_485=0, state_547=0, state_550=0, state_596=0, state_64=0, state_67=0, state_69=0, state_72=0, state_84=0, state_89=0, state_97=0, var_106=1618477056, var_109=1618478076, var_118=1, var_195=0, var_199=2, var_201=4, var_214=3, var_274=5, var_276=7, var_289=6, var_335=1, var_63=0, var_79=1, var_83=0, var_87=3, var_95=2] [L215] input_2 = __VERIFIER_nondet_uchar() [L216] input_2 = input_2 & mask_SORT_1 [L217] input_3 = __VERIFIER_nondet_uchar() [L218] input_3 = input_3 & mask_SORT_1 [L219] input_4 = __VERIFIER_nondet_uchar() [L220] input_4 = input_4 & mask_SORT_1 [L221] input_5 = __VERIFIER_nondet_uchar() [L222] input_6 = __VERIFIER_nondet_uchar() [L223] input_8 = __VERIFIER_nondet_uint() [L224] input_8 = input_8 & mask_SORT_7 [L225] input_10 = __VERIFIER_nondet_uchar() [L226] input_11 = __VERIFIER_nondet_uchar() [L227] input_12 = __VERIFIER_nondet_uint() [L228] input_12 = input_12 & mask_SORT_7 [L229] input_13 = __VERIFIER_nondet_uchar() [L230] input_13 = input_13 & mask_SORT_1 [L231] input_14 = __VERIFIER_nondet_uchar() [L232] input_14 = input_14 & mask_SORT_1 [L233] input_15 = __VERIFIER_nondet_uchar() [L234] input_15 = input_15 & mask_SORT_1 [L235] input_17 = __VERIFIER_nondet_uchar() [L236] input_18 = __VERIFIER_nondet_uchar() [L237] input_19 = __VERIFIER_nondet_uchar() [L238] input_20 = __VERIFIER_nondet_uchar() [L239] input_21 = __VERIFIER_nondet_uchar() [L240] input_22 = __VERIFIER_nondet_uchar() [L241] input_23 = __VERIFIER_nondet_uchar() [L242] input_24 = __VERIFIER_nondet_uchar() [L243] input_25 = __VERIFIER_nondet_uchar() [L244] input_26 = __VERIFIER_nondet_uchar() [L245] input_27 = __VERIFIER_nondet_uchar() [L246] input_28 = __VERIFIER_nondet_uchar() [L247] input_29 = __VERIFIER_nondet_uchar() [L248] input_30 = __VERIFIER_nondet_uchar() [L249] input_31 = __VERIFIER_nondet_uchar() [L250] input_32 = __VERIFIER_nondet_uchar() [L251] input_33 = __VERIFIER_nondet_uchar() [L252] input_34 = __VERIFIER_nondet_uchar() [L253] input_35 = __VERIFIER_nondet_uchar() [L254] input_36 = __VERIFIER_nondet_uchar() [L255] input_37 = __VERIFIER_nondet_uchar() [L256] input_38 = __VERIFIER_nondet_uchar() [L257] input_39 = __VERIFIER_nondet_uchar() [L258] input_40 = __VERIFIER_nondet_uchar() [L259] input_41 = __VERIFIER_nondet_uchar() [L260] input_42 = __VERIFIER_nondet_uchar() [L261] input_43 = __VERIFIER_nondet_uchar() [L262] input_44 = __VERIFIER_nondet_uchar() [L263] input_45 = __VERIFIER_nondet_uchar() [L264] input_46 = __VERIFIER_nondet_uchar() [L265] input_47 = __VERIFIER_nondet_uchar() [L266] input_48 = __VERIFIER_nondet_uchar() [L267] input_49 = __VERIFIER_nondet_uchar() [L268] input_50 = __VERIFIER_nondet_uchar() [L269] input_51 = __VERIFIER_nondet_uchar() [L270] input_52 = __VERIFIER_nondet_uchar() [L271] input_53 = __VERIFIER_nondet_uchar() [L272] input_54 = __VERIFIER_nondet_uchar() [L273] input_55 = __VERIFIER_nondet_uchar() [L274] input_56 = __VERIFIER_nondet_uchar() [L275] input_57 = __VERIFIER_nondet_uchar() [L276] input_58 = __VERIFIER_nondet_uchar() [L277] input_59 = __VERIFIER_nondet_uchar() [L278] input_60 = __VERIFIER_nondet_uchar() [L279] input_61 = __VERIFIER_nondet_uchar() [L280] input_62 = __VERIFIER_nondet_uchar() [L283] SORT_1 var_66_arg_0 = state_64; [L284] SORT_1 var_66 = ~var_66_arg_0; [L285] SORT_1 var_71_arg_0 = state_69; [L286] SORT_1 var_71_arg_1 = state_67; [L287] SORT_1 var_71_arg_2 = input_26; [L288] SORT_1 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; [L289] var_71 = var_71 & mask_SORT_1 [L290] SORT_1 var_74_arg_0 = state_69; [L291] SORT_1 var_74_arg_1 = state_72; [L292] SORT_1 var_74_arg_2 = input_26; [L293] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L294] var_74 = var_74 & mask_SORT_1 [L295] SORT_1 var_75_arg_0 = var_71; [L296] SORT_1 var_75_arg_1 = var_74; [L297] SORT_1 var_75 = var_75_arg_0 == var_75_arg_1; [L298] SORT_1 var_76_arg_0 = var_66; [L299] SORT_1 var_76_arg_1 = var_75; [L300] SORT_1 var_76 = var_76_arg_0 | var_76_arg_1; [L301] SORT_1 var_80_arg_0 = var_76; [L302] SORT_1 var_80 = ~var_80_arg_0; [L303] SORT_1 var_81_arg_0 = var_79; [L304] SORT_1 var_81_arg_1 = var_80; [L305] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L306] var_81 = var_81 & mask_SORT_1 [L307] SORT_1 bad_82_arg_0 = var_81; [L308] CALL __VERIFIER_assert(!(bad_82_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 [2022-12-14 14:56:45,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh --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 a2ccd2ec512b7680591018c367d8a992c786836d0c6afc10d2cba8b00db088f4 --- 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-2329fc7 [2022-12-14 14:56:46,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:56:46,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:56:46,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:56:46,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:56:46,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:56:46,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:56:46,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:56:46,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:56:46,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:56:46,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:56:46,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:56:46,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:56:46,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:56:46,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:56:46,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:56:46,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:56:46,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:56:46,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:56:46,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:56:46,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:56:46,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:56:46,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:56:46,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:56:46,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:56:46,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:56:46,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:56:46,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:56:46,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:56:46,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:56:46,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:56:46,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:56:46,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:56:46,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:56:46,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:56:46,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:56:46,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:56:46,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:56:46,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:56:46,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:56:46,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:56:46,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 14:56:46,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:56:46,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:56:46,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:56:46,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:56:46,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:56:46,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:56:46,712 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:56:46,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:56:46,712 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:56:46,713 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:56:46,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:56:46,713 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:56:46,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:56:46,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:56:46,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:56:46,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:56:46,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:56:46,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:56:46,715 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:56:46,715 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:56:46,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:56:46,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:56:46,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:56:46,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:56:46,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:56:46,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:56:46,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:56:46,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:56:46,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:56:46,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:56:46,716 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:56:46,717 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:56:46,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:56:46,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:56:46,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:56:46,717 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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2ccd2ec512b7680591018c367d8a992c786836d0c6afc10d2cba8b00db088f4 [2022-12-14 14:56:46,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:56:46,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:56:46,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:56:46,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:56:46,983 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:56:46,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2022-12-14 14:56:49,583 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:56:49,808 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:56:49,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2022-12-14 14:56:49,820 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data/551804ea8/e8282018eb6a4776bb6898190022e108/FLAG90c9ba982 [2022-12-14 14:56:50,140 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/data/551804ea8/e8282018eb6a4776bb6898190022e108 [2022-12-14 14:56:50,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:56:50,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:56:50,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:56:50,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:56:50,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:56:50,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f1339a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50, skipping insertion in model container [2022-12-14 14:56:50,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:56:50,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:56:50,309 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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1107,1120] [2022-12-14 14:56:50,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:56:50,546 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:56:50,556 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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1107,1120] [2022-12-14 14:56:50,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:56:50,666 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:56:50,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50 WrapperNode [2022-12-14 14:56:50,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:56:50,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:56:50,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:56:50,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:56:50,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,772 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2176 [2022-12-14 14:56:50,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:56:50,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:56:50,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:56:50,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:56:50,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:56:50,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:56:50,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:56:50,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:56:50,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (1/1) ... [2022-12-14 14:56:50,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:56:50,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:56:50,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:56:50,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:56:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:56:50,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:56:51,249 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:56:51,251 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:56:53,261 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:56:53,266 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:56:53,266 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:56:53,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:53 BoogieIcfgContainer [2022-12-14 14:56:53,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:56:53,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:56:53,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:56:53,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:56:53,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:56:50" (1/3) ... [2022-12-14 14:56:53,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a1bfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:53, skipping insertion in model container [2022-12-14 14:56:53,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:50" (2/3) ... [2022-12-14 14:56:53,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a1bfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:53, skipping insertion in model container [2022-12-14 14:56:53,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:53" (3/3) ... [2022-12-14 14:56:53,274 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal179.c [2022-12-14 14:56:53,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:56:53,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:56:53,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:56:53,326 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;@3063a2b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:56:53,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:56:53,329 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) [2022-12-14 14:56:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:56:53,333 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:53,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:56:53,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:53,338 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 14:56:53,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:56:53,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535235350] [2022-12-14 14:56:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:53,347 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 [2022-12-14 14:56:53,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:56:53,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:56:53,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:56:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:53,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 14:56:53,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:56:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:56:53,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:56:53,741 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:56:53,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535235350] [2022-12-14 14:56:53,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535235350] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:53,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:53,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:56:53,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213147199] [2022-12-14 14:56:53,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:53,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:56:53,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:56:53,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:56:53,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:56:53,780 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) [2022-12-14 14:56:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:54,072 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 14:56:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:56:54,074 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 [2022-12-14 14:56:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:54,079 INFO L225 Difference]: With dead ends: 20 [2022-12-14 14:56:54,079 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:56:54,081 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 [2022-12-14 14:56:54,083 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:54,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:56:54,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:56:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 14:56:54,103 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) [2022-12-14 14:56:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 14:56:54,104 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 14:56:54,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:54,105 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 14:56:54,105 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) [2022-12-14 14:56:54,105 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 14:56:54,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:56:54,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:54,105 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:54,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:56:54,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:56:54,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:56:54,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:54,307 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 14:56:54,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:56:54,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405603194] [2022-12-14 14:56:54,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:54,311 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 [2022-12-14 14:56:54,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:56:54,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:56:54,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:56:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:55,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 14:56:55,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:56:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:56:55,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:56:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:56:55,692 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:56:55,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405603194] [2022-12-14 14:56:55,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405603194] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:56:55,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [891813350] [2022-12-14 14:56:55,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:55,693 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:56:55,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:56:55,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:56:55,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 14:56:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:57,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 14:56:57,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:56:57,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:56:57,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:56:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:56:57,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [891813350] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:56:57,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667282579] [2022-12-14 14:56:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:57,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:56:57,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:56:57,904 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:56:57,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:56:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:58,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 38 conjunts are in the unsatisfiable core [2022-12-14 14:56:58,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:56:58,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:56:58,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:56:58,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:56:58,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667282579] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:56:58,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:56:58,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 11 [2022-12-14 14:56:58,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528454907] [2022-12-14 14:56:58,830 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:56:58,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 14:56:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:56:58,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 14:56:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:56:58,832 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:56:59,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:59,445 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 14:56:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:56:59,446 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 14:56:59,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:59,446 INFO L225 Difference]: With dead ends: 16 [2022-12-14 14:56:59,446 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 14:56:59,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:56:59,447 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:59,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 23 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 14:56:59,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 14:56:59,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 14:56:59,449 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) [2022-12-14 14:56:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 14:56:59,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 14:56:59,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:59,450 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 14:56:59,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:56:59,450 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 14:56:59,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:56:59,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:59,451 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 14:56:59,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:56:59,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 14:56:59,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:57:00,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:57:00,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:57:00,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:00,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 14:57:00,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:57:00,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596499339] [2022-12-14 14:57:00,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:57:00,061 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 [2022-12-14 14:57:00,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:57:00,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:57:00,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df47cef7-2d74-4fbf-bbfe-7f5dcd849ba2/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:57:01,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:57:01,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:57:01,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 3785 conjuncts, 190 conjunts are in the unsatisfiable core [2022-12-14 14:57:01,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:57:06,137 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:57:06,137 INFO L328 TraceCheckSpWp]: Computing backward predicates...