./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS --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 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca --- 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-8393723 [2022-11-19 07:34:32,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:34:32,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:34:32,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:34:32,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:34:32,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:34:32,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:34:32,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:34:32,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:34:32,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:34:32,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:34:32,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:34:32,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:34:32,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:34:32,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:34:32,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:34:32,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:34:32,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:34:32,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:34:32,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:34:32,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:34:32,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:34:32,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:34:32,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:34:32,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:34:32,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:34:32,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:34:32,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:34:32,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:34:32,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:34:32,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:34:32,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:34:32,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:34:32,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:34:32,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:34:32,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:34:32,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:34:32,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:34:32,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:34:32,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:34:32,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:34:32,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:34:32,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:34:32,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:34:32,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:34:32,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:34:32,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:34:32,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:34:32,207 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:34:32,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:34:32,207 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:34:32,207 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:34:32,208 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:34:32,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:34:32,209 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:34:32,209 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:34:32,210 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:34:32,210 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:34:32,210 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:34:32,210 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:34:32,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:34:32,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:34:32,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:34:32,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:34:32,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:34:32,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:34:32,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:34:32,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:34:32,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:34:32,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:34:32,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:34:32,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:32,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:34:32,215 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:34:32,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:34:32,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:34:32,216 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:34:32,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:34:32,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:34:32,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:34:32,217 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_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca [2022-11-19 07:34:32,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:34:32,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:34:32,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:34:32,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:34:32,566 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:34:32,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-19 07:34:32,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/7a168495c/b9cff10081854e7bad065cd248d67a54/FLAG7e8d0ace8 [2022-11-19 07:34:33,148 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:34:33,149 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-19 07:34:33,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/7a168495c/b9cff10081854e7bad065cd248d67a54/FLAG7e8d0ace8 [2022-11-19 07:34:33,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/7a168495c/b9cff10081854e7bad065cd248d67a54 [2022-11-19 07:34:33,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:34:33,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:34:33,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:33,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:34:33,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:34:33,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:33" (1/1) ... [2022-11-19 07:34:33,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418147ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:33, skipping insertion in model container [2022-11-19 07:34:33,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:33" (1/1) ... [2022-11-19 07:34:33,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:34:33,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:34:33,687 WARN L234 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_570e68d0-34b7-4861-a499-4234a142869c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-19 07:34:33,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:33,896 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:34:33,905 WARN L234 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_570e68d0-34b7-4861-a499-4234a142869c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-19 07:34:34,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:34,042 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:34:34,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34 WrapperNode [2022-11-19 07:34:34,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:34,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:34,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:34:34,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:34:34,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,135 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 604 [2022-11-19 07:34:34,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:34,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:34:34,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:34:34,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:34:34,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:34:34,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:34:34,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:34:34,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:34:34,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (1/1) ... [2022-11-19 07:34:34,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:34,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:34,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:34:34,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:34:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:34:34,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:34:34,522 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:34:34,525 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:34:37,481 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:34:38,110 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:34:38,110 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:34:38,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:38 BoogieIcfgContainer [2022-11-19 07:34:38,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:34:38,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:34:38,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:34:38,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:34:38,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:33" (1/3) ... [2022-11-19 07:34:38,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adb65fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:38, skipping insertion in model container [2022-11-19 07:34:38,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:34" (2/3) ... [2022-11-19 07:34:38,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adb65fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:38, skipping insertion in model container [2022-11-19 07:34:38,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:38" (3/3) ... [2022-11-19 07:34:38,123 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex_v.c [2022-11-19 07:34:38,142 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:34:38,143 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:34:38,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:34:38,224 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;@69233b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:34:38,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:34:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:38,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:34:38,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:38,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:34:38,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:38,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:38,244 INFO L85 PathProgramCache]: Analyzing trace with hash 5578637, now seen corresponding path program 1 times [2022-11-19 07:34:38,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:38,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593569696] [2022-11-19 07:34:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:38,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:34:38,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:34:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:34:38,588 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:34:38,590 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:34:38,591 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:34:38,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:34:38,598 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:34:38,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:34:38,621 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:34:38,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:38 BoogieIcfgContainer [2022-11-19 07:34:38,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:34:38,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:34:38,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:34:38,629 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:34:38,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:38" (3/4) ... [2022-11-19 07:34:38,633 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:34:38,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:34:38,635 INFO L158 Benchmark]: Toolchain (without parser) took 5169.55ms. Allocated memory was 113.2MB in the beginning and 251.7MB in the end (delta: 138.4MB). Free memory was 77.3MB in the beginning and 213.5MB in the end (delta: -136.2MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-11-19 07:34:38,635 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:34:38,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.63ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 77.8MB in the end (delta: -762.1kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:34:38,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.24ms. Allocated memory is still 113.2MB. Free memory was 77.8MB in the beginning and 71.0MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 07:34:38,639 INFO L158 Benchmark]: Boogie Preprocessor took 57.46ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 67.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:34:38,640 INFO L158 Benchmark]: RCFGBuilder took 3918.05ms. Allocated memory was 113.2MB in the beginning and 201.3MB in the end (delta: 88.1MB). Free memory was 67.3MB in the beginning and 73.6MB in the end (delta: -6.3MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. [2022-11-19 07:34:38,641 INFO L158 Benchmark]: TraceAbstraction took 513.65ms. Allocated memory was 201.3MB in the beginning and 251.7MB in the end (delta: 50.3MB). Free memory was 72.6MB in the beginning and 213.5MB in the end (delta: -141.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 07:34:38,641 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 251.7MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:34:38,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.63ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 77.8MB in the end (delta: -762.1kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.24ms. Allocated memory is still 113.2MB. Free memory was 77.8MB in the beginning and 71.0MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.46ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 67.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3918.05ms. Allocated memory was 113.2MB in the beginning and 201.3MB in the end (delta: 88.1MB). Free memory was 67.3MB in the beginning and 73.6MB in the end (delta: -6.3MB). Peak memory consumption was 109.0MB. Max. memory is 16.1GB. * TraceAbstraction took 513.65ms. Allocated memory was 201.3MB in the beginning and 251.7MB in the end (delta: 50.3MB). Free memory was 72.6MB in the beginning and 213.5MB in the end (delta: -141.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 251.7MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 92, overapproximation of bitwiseAnd at line 82. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 8); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (8 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L31] const SORT_5 var_7 = 0; [L32] const SORT_5 var_13 = 1; [L33] const SORT_1 var_33 = 0; [L34] const SORT_1 var_42 = 4; [L35] const SORT_1 var_54 = 5; [L36] const SORT_1 var_193 = 3; [L37] const SORT_1 var_199 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L41] SORT_1 input_4; [L42] SORT_5 input_6; [L43] SORT_1 input_38; [L45] SORT_5 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L46] SORT_5 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] SORT_5 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L48] SORT_5 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L49] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_5 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] SORT_5 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L52] SORT_5 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L53] SORT_5 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L54] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L55] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_5 init_9_arg_1 = var_7; [L58] state_8 = init_9_arg_1 [L59] SORT_5 init_18_arg_1 = var_13; [L60] state_17 = init_18_arg_1 [L61] SORT_5 init_20_arg_1 = var_7; [L62] state_19 = init_20_arg_1 [L63] SORT_5 init_22_arg_1 = var_7; [L64] state_21 = init_22_arg_1 [L65] SORT_5 init_24_arg_1 = var_7; [L66] state_23 = init_24_arg_1 [L67] SORT_5 init_26_arg_1 = var_7; [L68] state_25 = init_26_arg_1 [L69] SORT_5 init_28_arg_1 = var_7; [L70] state_27 = init_28_arg_1 [L71] SORT_5 init_30_arg_1 = var_7; [L72] state_29 = init_30_arg_1 [L73] SORT_5 init_32_arg_1 = var_13; [L74] state_31 = init_32_arg_1 [L75] SORT_1 init_35_arg_1 = var_33; [L76] state_34 = init_35_arg_1 [L77] SORT_1 init_37_arg_1 = var_33; [L78] state_36 = init_37_arg_1 VAL [init_18_arg_1=1, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=1, init_35_arg_1=0, init_37_arg_1=0, init_9_arg_1=0, mask_SORT_1=255, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_5=1, state_17=1, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=1, state_34=0, state_36=0, state_8=0, var_13=1, var_193=3, var_199=2, var_33=0, var_42=4, var_54=5, var_7=0] [L81] input_2 = __VERIFIER_nondet_uchar() [L82] input_2 = input_2 & mask_SORT_1 [L83] input_3 = __VERIFIER_nondet_uchar() [L84] input_3 = input_3 & mask_SORT_1 [L85] input_4 = __VERIFIER_nondet_uchar() [L86] input_4 = input_4 & mask_SORT_1 [L87] input_6 = __VERIFIER_nondet_uchar() [L88] input_38 = __VERIFIER_nondet_uchar() [L91] SORT_5 var_10_arg_0 = state_8; [L92] SORT_5 var_10 = ~var_10_arg_0; [L93] SORT_5 var_14_arg_0 = var_10; [L94] SORT_5 var_14 = ~var_14_arg_0; [L95] SORT_5 var_15_arg_0 = var_13; [L96] SORT_5 var_15_arg_1 = var_14; [L97] SORT_5 var_15 = var_15_arg_0 & var_15_arg_1; [L98] var_15 = var_15 & mask_SORT_5 [L99] SORT_5 bad_16_arg_0 = var_15; [L100] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:34:38,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS --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 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca --- 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-8393723 [2022-11-19 07:34:40,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:34:40,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:34:40,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:34:40,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:34:40,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:34:40,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:34:40,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:34:41,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:34:41,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:34:41,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:34:41,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:34:41,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:34:41,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:34:41,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:34:41,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:34:41,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:34:41,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:34:41,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:34:41,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:34:41,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:34:41,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:34:41,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:34:41,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:34:41,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:34:41,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:34:41,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:34:41,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:34:41,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:34:41,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:34:41,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:34:41,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:34:41,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:34:41,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:34:41,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:34:41,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:34:41,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:34:41,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:34:41,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:34:41,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:34:41,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:34:41,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:34:41,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:34:41,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:34:41,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:34:41,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:34:41,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:34:41,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:34:41,062 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:34:41,063 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:34:41,063 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:34:41,063 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:34:41,063 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:34:41,063 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:34:41,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:34:41,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:34:41,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:34:41,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:34:41,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:34:41,065 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:34:41,065 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:34:41,066 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:34:41,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:34:41,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:34:41,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:34:41,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:34:41,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:34:41,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:34:41,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:41,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:34:41,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:34:41,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:34:41,068 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:34:41,068 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:34:41,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:34:41,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:34:41,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:34:41,069 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_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8730d6ec4fcbc5f6df390d4be768126ffa92771ead17d97dfd39e0d222630fca [2022-11-19 07:34:41,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:34:41,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:34:41,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:34:41,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:34:41,500 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:34:41,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-19 07:34:41,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/5a0553747/bc9a19415c554a47b06343cea11386ec/FLAG96a235b3e [2022-11-19 07:34:42,182 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:34:42,183 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c [2022-11-19 07:34:42,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/5a0553747/bc9a19415c554a47b06343cea11386ec/FLAG96a235b3e [2022-11-19 07:34:42,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/data/5a0553747/bc9a19415c554a47b06343cea11386ec [2022-11-19 07:34:42,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:34:42,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:34:42,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:42,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:34:42,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:34:42,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:42" (1/1) ... [2022-11-19 07:34:42,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56dc3772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42, skipping insertion in model container [2022-11-19 07:34:42,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:42" (1/1) ... [2022-11-19 07:34:42,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:34:42,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:34:42,686 WARN L234 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_570e68d0-34b7-4861-a499-4234a142869c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-19 07:34:42,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:42,906 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:34:42,946 WARN L234 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_570e68d0-34b7-4861-a499-4234a142869c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_sym_ex_v.c[1107,1120] [2022-11-19 07:34:43,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:34:43,018 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:34:43,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43 WrapperNode [2022-11-19 07:34:43,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:34:43,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:43,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:34:43,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:34:43,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,115 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 534 [2022-11-19 07:34:43,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:34:43,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:34:43,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:34:43,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:34:43,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,199 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:34:43,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:34:43,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:34:43,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:34:43,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (1/1) ... [2022-11-19 07:34:43,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:34:43,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:43,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:34:43,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:34:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:34:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:34:43,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:34:43,532 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:34:44,128 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:34:44,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:34:44,137 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:34:44,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:44 BoogieIcfgContainer [2022-11-19 07:34:44,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:34:44,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:34:44,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:34:44,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:34:44,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:42" (1/3) ... [2022-11-19 07:34:44,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563bf285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:44, skipping insertion in model container [2022-11-19 07:34:44,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:43" (2/3) ... [2022-11-19 07:34:44,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563bf285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:44, skipping insertion in model container [2022-11-19 07:34:44,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:44" (3/3) ... [2022-11-19 07:34:44,148 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_sym_ex_v.c [2022-11-19 07:34:44,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:34:44,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:34:44,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:34:44,259 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;@5bfd0d7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:34:44,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:34:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:44,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:34:44,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:44,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:34:44,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:44,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 07:34:44,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:34:44,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911475849] [2022-11-19 07:34:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:44,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:34:44,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:34:44,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:34:44,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:34:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:44,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 07:34:44,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:44,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:34:44,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:34:44,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911475849] [2022-11-19 07:34:44,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911475849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:44,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:34:44,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:34:44,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461928719] [2022-11-19 07:34:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:44,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:34:44,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:34:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:34:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:34:44,724 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:44,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:44,833 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 07:34:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:34:44,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:34:44,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:44,844 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:34:44,845 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 07:34:44,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:34:44,851 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:44,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:34:44,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 07:34:44,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 07:34:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:44,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 07:34:44,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 07:34:44,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:44,884 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 07:34:44,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 07:34:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:34:44,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:44,885 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:34:44,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:34:45,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:34:45,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:45,098 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 07:34:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:34:45,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422869118] [2022-11-19 07:34:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:45,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:34:45,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:34:45,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:34:45,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:34:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:45,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 07:34:45,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:45,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:45,920 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:34:45,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422869118] [2022-11-19 07:34:45,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422869118] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:45,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2067438136] [2022-11-19 07:34:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:45,926 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:34:45,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:34:45,931 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:34:45,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:34:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:46,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 07:34:46,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:46,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:46,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2067438136] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:46,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485120235] [2022-11-19 07:34:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:46,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:34:46,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:46,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:34:46,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:34:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:47,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-19 07:34:47,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:47,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:47,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485120235] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:47,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:34:47,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-19 07:34:47,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515041840] [2022-11-19 07:34:47,389 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:34:47,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 07:34:47,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:34:47,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 07:34:47,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:34:47,392 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:47,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:47,541 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 07:34:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:34:47,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:34:47,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:47,543 INFO L225 Difference]: With dead ends: 16 [2022-11-19 07:34:47,543 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 07:34:47,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:34:47,545 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:47,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-11-19 07:34:47,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 07:34:47,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 07:34:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 07:34:47,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 07:34:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:47,549 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 07:34:47,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 07:34:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:34:47,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:47,550 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 07:34:47,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:34:47,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-19 07:34:47,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:34:48,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:34:48,152 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:34:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:48,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 07:34:48,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:34:48,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573777685] [2022-11-19 07:34:48,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:34:48,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:34:48,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:34:48,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:34:48,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 07:34:48,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:34:48,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:34:48,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-19 07:34:48,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:49,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:50,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:34:50,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573777685] [2022-11-19 07:34:50,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573777685] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:50,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [889245636] [2022-11-19 07:34:50,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:34:50,193 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:34:50,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:34:50,195 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:34:50,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 07:34:50,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:34:50,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:34:50,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-19 07:34:50,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:51,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:56,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [889245636] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:56,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617325517] [2022-11-19 07:34:56,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:34:56,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:34:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:56,259 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:34:56,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:34:56,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:34:56,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:34:56,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 117 conjunts are in the unsatisfiable core [2022-11-19 07:34:56,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:57,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:59,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617325517] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:59,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:34:59,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 9, 9] total 21 [2022-11-19 07:34:59,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387629456] [2022-11-19 07:34:59,718 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:34:59,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-19 07:34:59,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:34:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-19 07:34:59,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=316, Unknown=2, NotChecked=0, Total=420 [2022-11-19 07:34:59,720 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:00,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:00,089 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-19 07:35:00,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:35:00,090 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:35:00,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:00,091 INFO L225 Difference]: With dead ends: 19 [2022-11-19 07:35:00,091 INFO L226 Difference]: Without dead ends: 17 [2022-11-19 07:35:00,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=162, Invalid=436, Unknown=2, NotChecked=0, Total=600 [2022-11-19 07:35:00,092 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:00,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 39 Unchecked, 0.0s Time] [2022-11-19 07:35:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-19 07:35:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-19 07:35:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-19 07:35:00,097 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-19 07:35:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:00,097 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-19 07:35:00,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-19 07:35:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:35:00,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:00,098 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-19 07:35:00,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:35:00,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:35:00,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:35:00,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:35:00,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:35:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:00,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-19 07:35:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:35:00,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895638114] [2022-11-19 07:35:00,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:35:00,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:35:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:35:00,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:35:00,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 07:35:01,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 07:35:01,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:35:01,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 215 conjunts are in the unsatisfiable core [2022-11-19 07:35:01,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:06,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:35,691 WARN L233 SmtUtils]: Spent 12.34s on a formula simplification that was a NOOP. DAG size: 397 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:36:20,723 WARN L233 SmtUtils]: Spent 28.06s on a formula simplification that was a NOOP. DAG size: 634 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:36:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:21,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:36:21,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895638114] [2022-11-19 07:36:21,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895638114] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:36:21,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [944481140] [2022-11-19 07:36:21,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:36:21,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:36:21,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:36:21,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:36:21,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 07:36:22,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 07:36:22,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:36:22,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 268 conjunts are in the unsatisfiable core [2022-11-19 07:36:22,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:25,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:36:45,375 WARN L233 SmtUtils]: Spent 9.02s on a formula simplification. DAG size of input: 404 DAG size of output: 347 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:38:41,710 WARN L233 SmtUtils]: Spent 1.64m on a formula simplification. DAG size of input: 709 DAG size of output: 680 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:38:42,260 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:38:42,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [944481140] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:38:42,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614862478] [2022-11-19 07:38:42,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:38:42,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:42,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:42,263 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:42,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 07:38:42,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 07:38:42,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:38:42,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-19 07:38:42,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:45,146 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:38:45,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:17,121 WARN L233 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:39:34,578 WARN L233 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:39:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:39:34,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614862478] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:39:34,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:39:34,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 10, 10] total 31 [2022-11-19 07:39:34,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682998518] [2022-11-19 07:39:34,676 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:39:34,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-19 07:39:34,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:39:34,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-19 07:39:34,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=758, Unknown=39, NotChecked=0, Total=930 [2022-11-19 07:39:34,678 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 31 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:39:41,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:41,756 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-19 07:39:41,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:39:41,757 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 31 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-19 07:39:41,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:41,758 INFO L225 Difference]: With dead ends: 22 [2022-11-19 07:39:41,758 INFO L226 Difference]: Without dead ends: 20 [2022-11-19 07:39:41,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 268.5s TimeCoverageRelationStatistics Valid=262, Invalid=1030, Unknown=40, NotChecked=0, Total=1332 [2022-11-19 07:39:41,760 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:41,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 70 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 92 Unchecked, 0.2s Time] [2022-11-19 07:39:41,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-19 07:39:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-19 07:39:41,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:39:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-19 07:39:41,772 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-19 07:39:41,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:41,773 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-19 07:39:41,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 31 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:39:41,776 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-19 07:39:41,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:39:41,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:41,777 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-19 07:39:41,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:41,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:42,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:42,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:39:42,388 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:39:42,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:42,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-19 07:39:42,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:39:42,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460718038] [2022-11-19 07:39:42,390 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:39:42,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:39:42,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:39:42,391 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:39:42,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 07:39:42,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:39:42,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:39:42,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 382 conjunts are in the unsatisfiable core [2022-11-19 07:39:42,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:39:45,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:58,831 WARN L233 SmtUtils]: Spent 11.50s on a formula simplification. DAG size of input: 319 DAG size of output: 260 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:50,159 WARN L233 SmtUtils]: Spent 2.72m on a formula simplification. DAG size of input: 739 DAG size of output: 375 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:01,396 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse66 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_7~0#1|)))) (.cse68 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|)) (.cse67 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_19~0#1|)) (.cse65 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_17~0#1|)) (.cse42 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_21~0#1|)) (.cse43 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_25~0#1|)) (.cse41 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_27~0#1|)) (.cse48 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_29~0#1|)) (.cse40 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_8~0#1|)) (.cse44 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse10 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_42~0#1|)) (.cse11 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse21 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_193~0#1|))))))))))))) (let ((.cse54 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_32| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_32|))))))))) .cse21)))))))))) (.cse52 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_196_arg_1~0#1_31| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_31|))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_32|))))))))))))))))))) (.cse59 (forall ((|v_ULTIMATE.start_main_~var_57_arg_2~0#1_33| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_57_arg_2~0#1_33|)))))))) (.cse31 (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))))) (_ bv0 32)))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|)))) .cse44)) (_ bv0 8)))) (.cse61 (forall ((|v_ULTIMATE.start_main_~var_48_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_2~0#1_33|))))) .cse44)) (_ bv0 8)))) (.cse50 (forall ((|v_ULTIMATE.start_main_~var_116_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_101_arg_1~0#1_35| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_161_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_36| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_36| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_1~0#1_36|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse68))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse67))) .cse65))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse42))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse43)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse41)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse48)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse40)))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_101_arg_1~0#1_35|)))))))))))))))))))))) .cse44)) (_ bv0 8))))) (.cse51 (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_32| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_32|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_32|)))))))) (_ bv0 32))))))))))))))) .cse44)) (_ bv0 8)))) (.cse60 (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_0~0#1_30| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_0~0#1_30|) (_ bv1 32))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|)))) .cse44)) (_ bv0 8)))) (.cse49 (forall ((|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_46_arg_2~0#1_30| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_30|)))))))))))))) (_ bv0 8)))) (.cse38 ((_ zero_extend 24) ((_ extract 7 0) .cse68))) (.cse39 ((_ zero_extend 24) ((_ extract 7 0) .cse67))) (.cse58 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse66)))) (.cse64 ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse66)) .cse44)))) (let ((.cse20 (= (_ bv0 8) .cse64)) (.cse47 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) .cse64)))) .cse58))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse65)) .cse44))))))))) (.cse9 (forall ((|v_ULTIMATE.start_main_~var_44_arg_0~0#1_30| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse38 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse39))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse40 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse42))) .cse43))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_0~0#1_30|) (_ bv1 32)))))))))))))))))) .cse44)) (_ bv0 8)))) (.cse37 (forall ((|v_ULTIMATE.start_main_~var_56_arg_1~0#1_34| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse42 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_34|))))))))))) (.cse22 (= |c_ULTIMATE.start_main_~state_31~0#1| (_ bv0 8))) (.cse2 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_19~0#1|)) (.cse27 (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_71_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_50_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse62 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) .cse62))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_71_arg_2~0#1_33|))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|) .cse62))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse63 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse63))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|) .cse63))))) .cse44)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_2~0#1_33|))))) .cse44)))))) .cse58))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_50_arg_2~0#1_33|))) .cse44))))))))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|))))))))) .cse49)) (.cse28 (or .cse60 (forall ((|v_ULTIMATE.start_main_~var_197_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_205_arg_2~0#1_33| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_197_arg_2~0#1_33|)))))))))))))))))))))))) (.cse6 (or .cse50 .cse51)) (.cse29 (or .cse60 (forall ((|v_ULTIMATE.start_main_~var_205_arg_2~0#1_33| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_2~0#1_33|))))))))))) .cse21))))))))))) (.cse30 (or .cse60 .cse61 (forall ((|v_ULTIMATE.start_main_~var_196_arg_1~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_205_arg_2~0#1_33| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_31|))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_205_arg_2~0#1_33|)))))))))))))))))))))) (.cse26 (forall ((|v_ULTIMATE.start_main_~var_57_arg_2~0#1_33| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_57_arg_2~0#1_33|))))))))) (.cse32 (or .cse59 .cse31)) (.cse33 (or .cse59 .cse50 .cse51)) (.cse34 (or .cse59 .cse60 .cse61 .cse52)) (.cse35 (or .cse59 .cse54 .cse60)) (.cse36 (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_71_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_57_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_50_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (let ((.cse55 ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_57_arg_2~0#1_33|))))))) (or (= (_ bv0 8) .cse55) (not (= ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse56 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) .cse56))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_71_arg_2~0#1_33|))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|) .cse56))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse57 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) .cse55)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|) .cse57))))) .cse44)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_2~0#1_33|))))) .cse44)))))) .cse58))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_50_arg_2~0#1_33|))) .cse44)))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse57))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|)))))))))))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))))))))))) (_ bv0 8)))))) .cse49))) (let ((.cse0 (and (or (and .cse27 .cse28 .cse6 .cse29 (forall ((|v_ULTIMATE.start_main_~var_46_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_59_arg_2~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_65_arg_2~0#1_33| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_59_arg_2~0#1_33|))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_65_arg_2~0#1_33|)))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_2~0#1_33|))))))))))))) (_ bv0 32)))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|)))) .cse44)) (_ bv0 8))) .cse30) .cse26) .cse32 .cse33 .cse34 .cse35 .cse36)) (.cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_34~0#1|)))))))))))))))) (.cse1 (not .cse2)) (.cse3 (not .cse22)) (.cse14 (or .cse9 .cse54 .cse37)) (.cse4 (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse53 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse42))) .cse43))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse40 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse53 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_34|)))) .cse48))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse53 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse38 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse39))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse39 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|)))))))))))) .cse47))) (_ bv255 32)))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|))))))))) (_ bv0 8)))) .cse49)) (.cse7 (forall ((|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse38 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse39))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse40 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse42))) .cse43))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))))) (_ bv0 32))))))))))))))) .cse44)) (_ bv0 8)))) (.cse13 (forall ((|v_ULTIMATE.start_main_~var_56_arg_1~0#1_34| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse42 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_34|)))))))))))) (.cse15 (or .cse9 .cse37 .cse20 .cse52)) (.cse16 (or .cse37 .cse50 .cse51)) (.cse17 (or (forall ((|v_ULTIMATE.start_main_~var_161_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_146_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_191_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_176_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_131_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_116_arg_0~0#1_31| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_1~0#1_33| (_ BitVec 8))) (let ((.cse45 ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse42 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_34|)))))))))) (or (= (_ bv0 8) .cse45) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_191_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_131_arg_1~0#1_34|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_0~0#1_31|) ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse46 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse42))) .cse43))))))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse40 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse46 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse38 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse39))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse44 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse39 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_1~0#1_33|)))))))))))) .cse47))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) .cse45)))))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_34|)))) .cse48))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse46 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_1~0#1_33|))))))))))))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_146_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_161_arg_1~0#1_34|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_176_arg_1~0#1_34|))))))) .cse44)) (_ bv0 8)))))) .cse49)) (.cse18 (or .cse37 (forall ((|v_ULTIMATE.start_main_~var_44_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_63_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_1~0#1_34| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_15_arg_0~0#1_39| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_15_arg_0~0#1_39|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_32|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse38 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_33|) .cse39))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse40 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse41 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_34|))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_63_arg_1~0#1_34|) .cse42))) .cse43))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_1~0#1_33|)))))))))))))) (_ bv0 32))))))))))))))) .cse44)) (_ bv0 8))))) (.cse23 (= |c_ULTIMATE.start_main_~state_23~0#1| (_ bv0 8)))) (and (or (and (or (and (or .cse0 .cse1) (or .cse0 .cse2)) .cse3) (or (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_36~0#1|))))))))))))))) (let ((.cse5 (or .cse9 (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse12 .cse21)))))))))) (.cse8 (or .cse9 .cse20 (forall ((|v_ULTIMATE.start_main_~var_196_arg_1~0#1_31| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_31|))))) .cse12))) .cse11))))))))) (and (or (and (or (and .cse4 .cse5 .cse6 .cse7 .cse8 (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_196_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_33|)))))))))))))))))))))))))) .cse13) .cse14 .cse15 .cse16 .cse17 .cse18) .cse2) (or (and .cse14 (or (and .cse4 .cse5 .cse6 .cse7 (or .cse9 (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse12 .cse19))))))))) .cse8) .cse13) .cse15 .cse16 .cse17 .cse18) .cse1)))) .cse22)) (not .cse23)) (or (let ((.cse24 (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_196_arg_1~0#1_31| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_31|))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|)))))))))))))))))))))) .cse20)) (.cse25 (or (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse21 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|)))))))))))))))))))))) .cse9))) (and (or (and (or .cse0 .cse3) (or .cse22 (and .cse14 .cse15 .cse16 .cse17 (or .cse13 (and .cse4 .cse24 (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|))))))))))))) .cse19)))))))))) .cse6 .cse7 .cse25)) .cse18))) .cse1) (or (and (or (and (or .cse26 (and .cse27 .cse28 .cse6 .cse29 .cse30 .cse31)) .cse32 .cse33 .cse34 .cse35 .cse36) .cse3) (or (and .cse14 (or (and .cse4 .cse24 .cse6 .cse7 (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_204_arg_1~0#1_33| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_196_arg_1~0#1_33| (_ BitVec 8))) (not (= .cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_196_arg_1~0#1_33|))))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_204_arg_1~0#1_33|))))))))))))))))))))))) .cse25) .cse13) .cse15 .cse16 .cse17 .cse18) .cse22)) .cse2))) .cse23)))))) is different from false [2022-11-19 07:43:06,029 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2022-11-19 07:43:06,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:43:06,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460718038] [2022-11-19 07:43:06,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460718038] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:43:06,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [96093838] [2022-11-19 07:43:06,030 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:43:06,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:43:06,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:43:06,039 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:43:06,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-19 07:43:07,200 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:43:07,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:43:07,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 381 conjunts are in the unsatisfiable core [2022-11-19 07:43:07,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:09,487 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:43:09,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:46:02,133 WARN L233 SmtUtils]: Spent 2.62m on a formula simplification. DAG size of input: 739 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:37,590 WARN L233 SmtUtils]: Spent 2.37m on a formula simplification. DAG size of input: 910 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:38,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [96093838] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:48:38,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582910118] [2022-11-19 07:48:38,106 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:48:38,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:48:38,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:48:38,109 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:48:38,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_570e68d0-34b7-4861-a499-4234a142869c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-19 07:48:38,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:48:38,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:48:38,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 390 conjunts are in the unsatisfiable core [2022-11-19 07:48:38,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:48:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:48:43,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:49:02,452 WARN L233 SmtUtils]: Spent 16.24s on a formula simplification. DAG size of input: 311 DAG size of output: 283 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:49:11,976 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 288 DAG size of output: 286 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)